Imported
This commit is contained in:
parent
5485196bf7
commit
ce362fde33
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#!/usr/bin/python3 -u
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import sys, signal, os
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# sys.path.append('/usr/local/lib/python3.5/dist-packages/sensord')
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from sensord.RFM69receiver import RFM69Receiver, LogConsole
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from sensord.InfluxDBWriter import InfluxDBWriter
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from sensord.MQTT import MQTT
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RFM_NODE = 1
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RFM_NETW = 101
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RFM_ENCR = '0123456789ABCDEF'
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MQTT_HOST = "mqtt.broker"
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MQTT_PORT = 8883
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MQTT_BASE = "sensor/"
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MQTT_USER = "sensor"
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MQTT_PASS = "secretsauce"
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MQTT_CERT = "/etc/mosquitto/ca_certificates/ca.crt"
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INFLUX_HOST = "influxdb.host"
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INFLUX_PORT = 8086
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INFLUX_DB = "sensors"
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rfm = RFM69Receiver(RFM_NODE, RFM_NETW, RFM_ENCR)
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influx = InfluxDBWriter(INFLUX_HOST, INFLUX_PORT, INFLUX_DB)
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mqtt = MQTT(MQTT_HOST, MQTT_PORT, MQTT_BASE, MQTT_USER, MQTT_PASS, MQTT_CERT)
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rfm.attach_observer(influx)
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rfm.attach_observer(mqtt)
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rfm.attach_observer(LogConsole())
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rfm.run()
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""" Module to Store Sensor Data into InfluxDB """
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from influxdb import InfluxDBClient
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from copy import copy
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class InfluxDBWriter(object):
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""" Class to Represent the RRD Data of a Single Multi-Value Sensor """
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def __init__(self, host, port=8086, dbname="sensors", user=None, passwd=None):
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""" Initialize Class
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Arguments:
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host : InfluxDB Hostname (mandatory)
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port: InfluxDB HTTP Port
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dbname: Name of the InfluxDB database
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user: Username
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pass: Passwort (mandatory if user is set)
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"""
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self.__host = host
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self.__port = port
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self.__dbname = dbname
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if user != None and passwd != None:
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self.__client = InfluxDBClient(host, port, user, passwd, dbname)
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else:
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self.__client = InfluxDBClient(host, port, database=dbname)
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def notify(self, msg):
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""" Notify Method Called from the Receiver Class, Inserts Values into InfluxDB
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Arguments:
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msg: Object Representation of the Sensor Data
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"""
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tmp = copy(msg)
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json_body = [{"measurement": str(tmp['sid']), "fields": {}}]
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tmp.pop('sid', None)
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json_body[0]["fields"] = tmp
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try:
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self.__client.write_points(json_body)
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except:
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print("Writing to InfluxDB Failed")
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""" Module to Publish Sensor Data to MQTT """
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import paho.mqtt.client as paho
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from copy import copy
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class MQTT(object):
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""" Class to Represent a Client to a single MQTT Broker """
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def __init__(self, host, port=1883, base="sensor/", user=None, passwd=None, certfile=None):
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""" Initialize Class
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Arguments:
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host : MQTT Broker Hostname (mandatory)
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port: MQTT Broker Port
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base: Base MQTT Topic
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user: Username
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pass: Passwort (mandatory if user is set)
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certfile: Path to CA-Cert File of the broker. TLS if used if set
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"""
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self.__base = base
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self.__client = paho.Client()
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self.__client.on_connect = self.__on_connect
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if user != None and passwd != None:
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self.__client.username_pw_set(user, passwd)
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if certfile != None:
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self.__client.tls_set(certfile)
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try:
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self.__client.connect(host, port, 60)
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self.__client.loop_start()
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except:
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print("Error Setting up MQTT Client")
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raise RuntimeError
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def __del__(self):
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self.__client.loop_stop()
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self.__client.disconnect()
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def __on_connect(self, client, userdata, ret, dummy):
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""" Do Something when MQTT Connection is established """
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print("Connected with result code "+str(ret))
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def notify(self, msg):
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""" Publish Sensor data to MQTT
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Arguments:
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msg: Object Representation of the Sensor Data
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"""
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tmp = copy(msg)
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sid = tmp['sid']
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tmp.pop('sid', None)
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for stype, svalue in tmp.items():
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self.__client.publish(self.__base + str(sid) + "/" + stype, str(svalue), 2, True)
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#!/usr/bin/env python2
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from RFM69registers import *
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import spidev
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import RPi.GPIO as GPIO
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import time
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class RFM69(object):
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def __init__(self, freqBand, nodeID, networkID, isRFM69HW = False, intPin = 18, rstPin = 28, spiBus = 0, spiDevice = 0):
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self.freqBand = freqBand
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self.address = nodeID
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self.networkID = networkID
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self.isRFM69HW = isRFM69HW
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self.intPin = intPin
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self.rstPin = rstPin
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self.spiBus = spiBus
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self.spiDevice = spiDevice
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self.intLock = False
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self.mode = ""
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self.promiscuousMode = False
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self.DATASENT = False
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self.DATALEN = 0
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self.SENDERID = 0
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self.TARGETID = 0
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self.PAYLOADLEN = 0
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self.ACK_REQUESTED = 0
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self.ACK_RECEIVED = 0
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self.RSSI = 0
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self.DATA = []
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GPIO.setmode(GPIO.BOARD)
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GPIO.setup(self.intPin, GPIO.IN)
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GPIO.setup(self.rstPin, GPIO.OUT)
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frfMSB = {RF69_315MHZ: RF_FRFMSB_315, RF69_433MHZ: RF_FRFMSB_433,
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RF69_868MHZ: RF_FRFMSB_868, RF69_915MHZ: RF_FRFMSB_915}
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frfMID = {RF69_315MHZ: RF_FRFMID_315, RF69_433MHZ: RF_FRFMID_433,
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RF69_868MHZ: RF_FRFMID_868, RF69_915MHZ: RF_FRFMID_915}
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frfLSB = {RF69_315MHZ: RF_FRFLSB_315, RF69_433MHZ: RF_FRFLSB_433,
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RF69_868MHZ: RF_FRFLSB_868, RF69_915MHZ: RF_FRFLSB_915}
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self.CONFIG = {
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0x01: [REG_OPMODE, RF_OPMODE_SEQUENCER_ON | RF_OPMODE_LISTEN_OFF | RF_OPMODE_STANDBY],
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#no shaping
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0x02: [REG_DATAMODUL, RF_DATAMODUL_DATAMODE_PACKET | RF_DATAMODUL_MODULATIONTYPE_FSK | RF_DATAMODUL_MODULATIONSHAPING_00],
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#default:4.8 KBPS
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0x03: [REG_BITRATEMSB, RF_BITRATEMSB_55555],
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0x04: [REG_BITRATELSB, RF_BITRATELSB_55555],
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#default:5khz, (FDEV + BitRate/2 <= 500Khz)
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0x05: [REG_FDEVMSB, RF_FDEVMSB_50000],
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0x06: [REG_FDEVLSB, RF_FDEVLSB_50000],
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0x07: [REG_FRFMSB, frfMSB[freqBand]],
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0x08: [REG_FRFMID, frfMID[freqBand]],
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0x09: [REG_FRFLSB, frfLSB[freqBand]],
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# looks like PA1 and PA2 are not implemented on RFM69W, hence the max output power is 13dBm
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# +17dBm and +20dBm are possible on RFM69HW
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# +13dBm formula: Pout=-18+OutputPower (with PA0 or PA1**)
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# +17dBm formula: Pout=-14+OutputPower (with PA1 and PA2)**
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# +20dBm formula: Pout=-11+OutputPower (with PA1 and PA2)** and high power PA settings (section 3.3.7 in datasheet)
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#0x11: [REG_PALEVEL, RF_PALEVEL_PA0_ON | RF_PALEVEL_PA1_OFF | RF_PALEVEL_PA2_OFF | RF_PALEVEL_OUTPUTPOWER_11111],
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#over current protection (default is 95mA)
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#0x13: [REG_OCP, RF_OCP_ON | RF_OCP_TRIM_95],
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# RXBW defaults are { REG_RXBW, RF_RXBW_DCCFREQ_010 | RF_RXBW_MANT_24 | RF_RXBW_EXP_5} (RxBw: 10.4khz)
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#//(BitRate < 2 * RxBw)
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0x19: [REG_RXBW, RF_RXBW_DCCFREQ_010 | RF_RXBW_MANT_16 | RF_RXBW_EXP_2],
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#for BR-19200: //* 0x19 */ { REG_RXBW, RF_RXBW_DCCFREQ_010 | RF_RXBW_MANT_24 | RF_RXBW_EXP_3 },
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#DIO0 is the only IRQ we're using
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0x25: [REG_DIOMAPPING1, RF_DIOMAPPING1_DIO0_01],
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#must be set to dBm = (-Sensitivity / 2) - default is 0xE4=228 so -114dBm
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0x29: [REG_RSSITHRESH, 220],
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#/* 0x2d */ { REG_PREAMBLELSB, RF_PREAMBLESIZE_LSB_VALUE } // default 3 preamble bytes 0xAAAAAA
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0x2e: [REG_SYNCCONFIG, RF_SYNC_ON | RF_SYNC_FIFOFILL_AUTO | RF_SYNC_SIZE_2 | RF_SYNC_TOL_0],
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#attempt to make this compatible with sync1 byte of RFM12B lib
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0x2f: [REG_SYNCVALUE1, 0x2D],
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#NETWORK ID
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0x30: [REG_SYNCVALUE2, networkID],
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0x37: [REG_PACKETCONFIG1, RF_PACKET1_FORMAT_VARIABLE | RF_PACKET1_DCFREE_OFF |
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RF_PACKET1_CRC_ON | RF_PACKET1_CRCAUTOCLEAR_ON | RF_PACKET1_ADRSFILTERING_OFF],
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#in variable length mode: the max frame size, not used in TX
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0x38: [REG_PAYLOADLENGTH, 66],
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#* 0x39 */ { REG_NODEADRS, nodeID }, //turned off because we're not using address filtering
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#TX on FIFO not empty
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0x3C: [REG_FIFOTHRESH, RF_FIFOTHRESH_TXSTART_FIFONOTEMPTY | RF_FIFOTHRESH_VALUE],
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#RXRESTARTDELAY must match transmitter PA ramp-down time (bitrate dependent)
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0x3d: [REG_PACKETCONFIG2, RF_PACKET2_RXRESTARTDELAY_2BITS | RF_PACKET2_AUTORXRESTART_ON | RF_PACKET2_AES_OFF],
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#for BR-19200: //* 0x3d */ { REG_PACKETCONFIG2, RF_PACKET2_RXRESTARTDELAY_NONE | RF_PACKET2_AUTORXRESTART_ON | RF_PACKET2_AES_OFF }, //RXRESTARTDELAY must match transmitter PA ramp-down time (bitrate dependent)
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#* 0x6F */ { REG_TESTDAGC, RF_DAGC_CONTINUOUS }, // run DAGC continuously in RX mode
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# run DAGC continuously in RX mode, recommended default for AfcLowBetaOn=0
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0x6F: [REG_TESTDAGC, RF_DAGC_IMPROVED_LOWBETA0],
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0x00: [255, 0]
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}
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#initialize SPI
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self.spi = spidev.SpiDev()
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self.spi.open(self.spiBus, self.spiDevice)
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self.spi.max_speed_hz = 4000000
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# Hard reset the RFM module
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GPIO.output(self.rstPin, GPIO.HIGH);
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time.sleep(0.1)
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GPIO.output(self.rstPin, GPIO.LOW);
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time.sleep(0.1)
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#verify chip is syncing?
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while self.readReg(REG_SYNCVALUE1) != 0xAA:
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self.writeReg(REG_SYNCVALUE1, 0xAA)
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while self.readReg(REG_SYNCVALUE1) != 0x55:
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self.writeReg(REG_SYNCVALUE1, 0x55)
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#write config
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for value in self.CONFIG.values():
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self.writeReg(value[0], value[1])
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self.encrypt(0)
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self.setHighPower(self.isRFM69HW)
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# Wait for ModeReady
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while (self.readReg(REG_IRQFLAGS1) & RF_IRQFLAGS1_MODEREADY) == 0x00:
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pass
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GPIO.remove_event_detect(self.intPin)
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GPIO.add_event_detect(self.intPin, GPIO.RISING, callback=self.interruptHandler)
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def setFreqeuncy(self, FRF):
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self.writeReg(REG_FRFMSB, FRF >> 16)
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self.writeReg(REG_FRFMID, FRF >> 8)
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self.writeReg(REG_FRFLSB, FRF)
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def setMode(self, newMode):
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if newMode == self.mode:
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return
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if newMode == RF69_MODE_TX:
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self.writeReg(REG_OPMODE, (self.readReg(REG_OPMODE) & 0xE3) | RF_OPMODE_TRANSMITTER)
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if self.isRFM69HW:
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self.setHighPowerRegs(True)
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elif newMode == RF69_MODE_RX:
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self.writeReg(REG_OPMODE, (self.readReg(REG_OPMODE) & 0xE3) | RF_OPMODE_RECEIVER)
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if self.isRFM69HW:
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self.setHighPowerRegs(False)
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elif newMode == RF69_MODE_SYNTH:
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self.writeReg(REG_OPMODE, (self.readReg(REG_OPMODE) & 0xE3) | RF_OPMODE_SYNTHESIZER)
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elif newMode == RF69_MODE_STANDBY:
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self.writeReg(REG_OPMODE, (self.readReg(REG_OPMODE) & 0xE3) | RF_OPMODE_STANDBY)
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elif newMode == RF69_MODE_SLEEP:
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self.writeReg(REG_OPMODE, (self.readReg(REG_OPMODE) & 0xE3) | RF_OPMODE_SLEEP)
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else:
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return
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# we are using packet mode, so this check is not really needed
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# but waiting for mode ready is necessary when going from sleep because the FIFO may not be immediately available from previous mode
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while self.mode == RF69_MODE_SLEEP and self.readReg(REG_IRQFLAGS1) & RF_IRQFLAGS1_MODEREADY == 0x00:
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pass
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self.mode = newMode;
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def sleep(self):
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self.setMode(RF69_MODE_SLEEP)
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def setAddress(self, addr):
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self.address = addr
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self.writeReg(REG_NODEADRS, self.address)
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def setNetwork(self, networkID):
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self.networkID = networkID
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self.writeReg(REG_SYNCVALUE2, networkID)
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def setPowerLevel(self, powerLevel):
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if powerLevel > 31:
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powerLevel = 31
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self.powerLevel = powerLevel
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self.writeReg(REG_PALEVEL, (self.readReg(REG_PALEVEL) & 0xE0) | self.powerLevel)
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def canSend(self):
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if self.mode == RF69_MODE_STANDBY:
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self.receiveBegin()
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return True
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#if signal stronger than -100dBm is detected assume channel activity
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elif self.mode == RF69_MODE_RX and self.PAYLOADLEN == 0 and self.readRSSI() < CSMA_LIMIT:
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self.setMode(RF69_MODE_STANDBY)
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return True
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return False
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def send(self, toAddress, buff = "", requestACK = False):
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self.writeReg(REG_PACKETCONFIG2, (self.readReg(REG_PACKETCONFIG2) & 0xFB) | RF_PACKET2_RXRESTART)
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now = time.time()
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while (not self.canSend()) and time.time() - now < RF69_CSMA_LIMIT_S:
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self.receiveDone()
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self.sendFrame(toAddress, buff, requestACK, False)
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# to increase the chance of getting a packet across, call this function instead of send
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# and it handles all the ACK requesting/retrying for you :)
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# The only twist is that you have to manually listen to ACK requests on the other side and send back the ACKs
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# The reason for the semi-automaton is that the lib is ingterrupt driven and
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# requires user action to read the received data and decide what to do with it
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# replies usually take only 5-8ms at 50kbps@915Mhz
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def sendWithRetry(self, toAddress, buff = "", retries = 3, retryWaitTime = 10):
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for i in range(0, retries):
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self.send(toAddress, buff, True)
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sentTime = time.time()
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while (time.time() - sentTime) * 1000 < retryWaitTime:
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if self.ACKReceived(toAddress):
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return True
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return False
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def ACKReceived(self, fromNodeID):
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if self.receiveDone():
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return (self.SENDERID == fromNodeID or fromNodeID == RF69_BROADCAST_ADDR) and self.ACK_RECEIVED
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return False
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def ACKRequested(self):
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return self.ACK_REQUESTED and self.TARGETID != RF69_BROADCAST_ADDR
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def sendACK(self, toAddress = 0, buff = ""):
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toAddress = toAddress if toAddress > 0 else self.SENDERID
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while not self.canSend():
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self.receiveDone()
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self.sendFrame(toAddress, buff, False, True)
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def sendFrame(self, toAddress, buff, requestACK, sendACK):
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#turn off receiver to prevent reception while filling fifo
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self.setMode(RF69_MODE_STANDBY)
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#wait for modeReady
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while (self.readReg(REG_IRQFLAGS1) & RF_IRQFLAGS1_MODEREADY) == 0x00:
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pass
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# DIO0 is "Packet Sent"
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self.writeReg(REG_DIOMAPPING1, RF_DIOMAPPING1_DIO0_00)
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if (len(buff) > RF69_MAX_DATA_LEN):
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buff = buff[0:RF69_MAX_DATA_LEN]
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ack = 0
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if sendACK:
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ack = 0x80
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elif requestACK:
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ack = 0x40
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if isinstance(buff, str):
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self.spi.xfer2([REG_FIFO | 0x80, len(buff) + 3, toAddress, self.address, ack] + [int(ord(i)) for i in list(buff)])
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else:
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self.spi.xfer2([REG_FIFO | 0x80, len(buff) + 3, toAddress, self.address, ack] + buff)
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startTime = time.time()
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self.DATASENT = False
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self.setMode(RF69_MODE_TX)
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while not self.DATASENT:
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if time.time() - startTime > 1.0:
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break
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self.setMode(RF69_MODE_RX)
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def interruptHandler(self, pin):
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self.intLock = True
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self.DATASENT = True
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if self.mode == RF69_MODE_RX and self.readReg(REG_IRQFLAGS2) & RF_IRQFLAGS2_PAYLOADREADY:
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self.setMode(RF69_MODE_STANDBY)
|
||||
self.PAYLOADLEN, self.TARGETID, self.SENDERID, CTLbyte = self.spi.xfer2([REG_FIFO & 0x7f,0,0,0,0])[1:]
|
||||
if self.PAYLOADLEN > 66:
|
||||
self.PAYLOADLEN = 66
|
||||
if not (self.promiscuousMode or self.TARGETID == self.address or self.TARGETID == RF69_BROADCAST_ADDR):
|
||||
self.PAYLOADLEN = 0
|
||||
self.intLock = False
|
||||
return
|
||||
self.DATALEN = self.PAYLOADLEN - 3
|
||||
self.ACK_RECEIVED = CTLbyte & 0x80
|
||||
self.ACK_REQUESTED = CTLbyte & 0x40
|
||||
|
||||
self.DATA = self.spi.xfer2([REG_FIFO & 0x7f] + [0 for i in range(0, self.DATALEN)])[1:]
|
||||
|
||||
self.RSSI = self.readRSSI()
|
||||
self.intLock = False
|
||||
|
||||
def receiveBegin(self):
|
||||
|
||||
while self.intLock:
|
||||
time.sleep(.1)
|
||||
self.DATALEN = 0
|
||||
self.SENDERID = 0
|
||||
self.TARGETID = 0
|
||||
self.PAYLOADLEN = 0
|
||||
self.ACK_REQUESTED = 0
|
||||
self.ACK_RECEIVED = 0
|
||||
self.RSSI = 0
|
||||
if (self.readReg(REG_IRQFLAGS2) & RF_IRQFLAGS2_PAYLOADREADY):
|
||||
# avoid RX deadlocks
|
||||
self.writeReg(REG_PACKETCONFIG2, (self.readReg(REG_PACKETCONFIG2) & 0xFB) | RF_PACKET2_RXRESTART)
|
||||
#set DIO0 to "PAYLOADREADY" in receive mode
|
||||
self.writeReg(REG_DIOMAPPING1, RF_DIOMAPPING1_DIO0_01)
|
||||
self.setMode(RF69_MODE_RX)
|
||||
|
||||
def receiveDone(self):
|
||||
if (self.mode == RF69_MODE_RX or self.mode == RF69_MODE_STANDBY) and self.PAYLOADLEN > 0:
|
||||
self.setMode(RF69_MODE_STANDBY)
|
||||
return True
|
||||
if self.readReg(REG_IRQFLAGS1) & RF_IRQFLAGS1_TIMEOUT:
|
||||
# https://github.com/russss/rfm69-python/blob/master/rfm69/rfm69.py#L112
|
||||
# Russss figured out that if you leave alone long enough it times out
|
||||
# tell it to stop being silly and listen for more packets
|
||||
self.writeReg(REG_PACKETCONFIG2, (self.readReg(REG_PACKETCONFIG2) & 0xFB) | RF_PACKET2_RXRESTART)
|
||||
elif self.mode == RF69_MODE_RX:
|
||||
# already in RX no payload yet
|
||||
return False
|
||||
self.receiveBegin()
|
||||
return False
|
||||
|
||||
def readRSSI(self, forceTrigger = False):
|
||||
rssi = 0
|
||||
if forceTrigger:
|
||||
self.writeReg(REG_RSSICONFIG, RF_RSSI_START)
|
||||
while self.readReg(REG_RSSICONFIG) & RF_RSSI_DONE == 0x00:
|
||||
pass
|
||||
rssi = self.readReg(REG_RSSIVALUE) * -1
|
||||
rssi = rssi >> 1
|
||||
return rssi
|
||||
|
||||
def encrypt(self, key):
|
||||
self.setMode(RF69_MODE_STANDBY)
|
||||
if key != 0 and len(key) == 16:
|
||||
self.spi.xfer([REG_AESKEY1 | 0x80] + [int(ord(i)) for i in list(key)])
|
||||
self.writeReg(REG_PACKETCONFIG2,(self.readReg(REG_PACKETCONFIG2) & 0xFE) | RF_PACKET2_AES_ON)
|
||||
else:
|
||||
self.writeReg(REG_PACKETCONFIG2,(self.readReg(REG_PACKETCONFIG2) & 0xFE) | RF_PACKET2_AES_OFF)
|
||||
|
||||
def readReg(self, addr):
|
||||
return self.spi.xfer([addr & 0x7F, 0])[1]
|
||||
|
||||
def writeReg(self, addr, value):
|
||||
self.spi.xfer([addr | 0x80, value])
|
||||
|
||||
def promiscuous(self, onOff):
|
||||
self.promiscuousMode = onOff
|
||||
|
||||
def setHighPower(self, onOff):
|
||||
if onOff:
|
||||
self.writeReg(REG_OCP, RF_OCP_OFF)
|
||||
#enable P1 & P2 amplifier stages
|
||||
self.writeReg(REG_PALEVEL, (self.readReg(REG_PALEVEL) & 0x1F) | RF_PALEVEL_PA1_ON | RF_PALEVEL_PA2_ON)
|
||||
else:
|
||||
self.writeReg(REG_OCP, RF_OCP_ON)
|
||||
#enable P0 only
|
||||
self.writeReg(REG_PALEVEL, RF_PALEVEL_PA0_ON | RF_PALEVEL_PA1_OFF | RF_PALEVEL_PA2_OFF | powerLevel)
|
||||
|
||||
def setHighPowerRegs(self, onOff):
|
||||
if onOff:
|
||||
self.writeReg(REG_TESTPA1, 0x5D)
|
||||
self.writeReg(REG_TESTPA2, 0x7C)
|
||||
else:
|
||||
self.writeReg(REG_TESTPA1, 0x55)
|
||||
self.writeReg(REG_TESTPA2, 0x70)
|
||||
|
||||
def readAllRegs(self):
|
||||
results = []
|
||||
for address in range(1, 0x50):
|
||||
results.append([str(hex(address)), str(bin(self.readReg(address)))])
|
||||
return results
|
||||
|
||||
def readTemperature(self, calFactor):
|
||||
self.setMode(RF69_MODE_STANDBY)
|
||||
self.writeReg(REG_TEMP1, RF_TEMP1_MEAS_START)
|
||||
while self.readReg(REG_TEMP1) & RF_TEMP1_MEAS_RUNNING:
|
||||
pass
|
||||
# COURSE_TEMP_COEF puts reading in the ballpark, user can add additional correction
|
||||
#'complement'corrects the slope, rising temp = rising val
|
||||
return (int(~self.readReg(REG_TEMP2)) * -1) + COURSE_TEMP_COEF + calFactor
|
||||
|
||||
|
||||
def rcCalibration(self):
|
||||
self.writeReg(REG_OSC1, RF_OSC1_RCCAL_START)
|
||||
while self.readReg(REG_OSC1) & RF_OSC1_RCCAL_DONE == 0x00:
|
||||
pass
|
||||
|
||||
def shutdown(self):
|
||||
self.setHighPower(False)
|
||||
self.sleep()
|
||||
GPIO.cleanup()
|
||||
|
|
@ -0,0 +1,149 @@
|
|||
"""
|
||||
rfm69receiver - A RFM69 433MHz Receiver Using the Observer Pattern
|
||||
"""
|
||||
|
||||
import time
|
||||
import struct
|
||||
from pprint import pprint
|
||||
import RFM69
|
||||
from RFM69registers import RF69_433MHZ
|
||||
|
||||
class RFM69Receiver(object):
|
||||
""" Receives Messages from a RFM69 Wireless SPI Transceiver and Can Notify
|
||||
Multiple Observers to Process the Messages
|
||||
"""
|
||||
|
||||
def __init__(self, nodeID, netID, encKey=None):
|
||||
""" Initialize the Transceiver Module
|
||||
|
||||
Arguments:
|
||||
nodeID: ID of the Node in the Network, typically 1 for the Receiver, between 1 and 255
|
||||
netID: Network ID, all Nodes must use the same ID to communicate, between 1 and 255
|
||||
encKey: 16 byte Encryption Key (AES-128). If None no encryption is used
|
||||
"""
|
||||
|
||||
self.__observers = []
|
||||
self.__running = False
|
||||
self.__lastsid = None
|
||||
self.__lastts = 0
|
||||
|
||||
try:
|
||||
print("Initializing RFM69 Module as Node " + str(nodeID) + " on Network " + str(netID))
|
||||
self.__rfm = RFM69.RFM69(RF69_433MHZ, nodeID, netID, False, rstPin=22)
|
||||
self.__rfm.rcCalibration()
|
||||
if encKey != None:
|
||||
self.__rfm.encrypt(encKey)
|
||||
except:
|
||||
print("ERROR: Could not Initialize RFM69 Module")
|
||||
raise RuntimeError
|
||||
|
||||
def __del__(self):
|
||||
""" Free the Receiver Module Resources on Exit """
|
||||
|
||||
print("Shutting Down RFM69 Module")
|
||||
self.__rfm.shutdown()
|
||||
def _rawbytes(self, s):
|
||||
"""Convert a string to raw bytes without encoding"""
|
||||
outlist = []
|
||||
for cp in s:
|
||||
num = ord(cp)
|
||||
if num < 255:
|
||||
outlist.append(struct.pack('B', num))
|
||||
elif num < 65535:
|
||||
outlist.append(struct.pack('>H', num))
|
||||
else:
|
||||
b = (num & 0xFF0000) >> 16
|
||||
H = num & 0xFFFF
|
||||
outlist.append(struct.pack('>bH', b, H))
|
||||
return b''.join(outlist)
|
||||
|
||||
|
||||
def _process(self, sid, data, rssi):
|
||||
""" Process received Data and Notify Registered Observers
|
||||
|
||||
Arguments:
|
||||
sid: NodeID of the Sending Sensor
|
||||
data: Data String or byte array
|
||||
rssi: Signal Strength Indicator
|
||||
"""
|
||||
|
||||
if self.__lastsid == sid and (time.time() - self.__lastts) < 10:
|
||||
self.__lastsid = sid
|
||||
self.__lastts = time.time()
|
||||
return
|
||||
|
||||
self.__lastsid = sid
|
||||
self.__lastts = time.time()
|
||||
msg = {}
|
||||
msg['sid'] = sid
|
||||
msg['rssi'] = rssi
|
||||
if (data.find(';') != -1 and data.find('=') != -1):
|
||||
values = data.split(";")
|
||||
for value in values:
|
||||
vsplit = value.split("=")
|
||||
if vsplit[0] == "t" or vsplit[0] == "h" or vsplit[0] == "p":
|
||||
msg[vsplit[0]] = int(vsplit[1].rstrip())/100
|
||||
elif vsplit[0] == "v":
|
||||
msg[vsplit[0]] = int(vsplit[1].rstrip())/1000
|
||||
else:
|
||||
msg[vsplit[0]] = int(vsplit[1].rstrip())
|
||||
else:
|
||||
bdata = self._rawbytes(data)
|
||||
msg['t'] = int.from_bytes(bdata[0:3], byteorder='little', signed=True)/100
|
||||
msg['p'] = int.from_bytes(bdata[4:7], byteorder='little', signed=True)/100
|
||||
msg['h'] = int.from_bytes(bdata[8:11], byteorder='little', signed=True)/100
|
||||
msg['v'] = int.from_bytes(bdata[12:15], byteorder='little', signed=True)/1000
|
||||
|
||||
for observer in self.__observers:
|
||||
observer.notify(msg)
|
||||
|
||||
def attach_observer(self, obs):
|
||||
""" Add an Object to the List of Known Observers """
|
||||
|
||||
self.__observers.append(obs)
|
||||
|
||||
def clear_observers(self):
|
||||
""" Delete all Known Observers """
|
||||
|
||||
self.__observers.clear()
|
||||
|
||||
def run(self):
|
||||
""" Start the Receiving Loop """
|
||||
|
||||
self.__running = True
|
||||
while self.__running:
|
||||
self.__rfm.receiveBegin()
|
||||
while not self.__rfm.receiveDone():
|
||||
time.sleep(.1)
|
||||
|
||||
sid = self.__rfm.SENDERID
|
||||
rssi = self.__rfm.RSSI
|
||||
|
||||
data = ""
|
||||
for char in self.__rfm.DATA:
|
||||
data += chr(char)
|
||||
|
||||
if self.__rfm.ACKRequested():
|
||||
self.__rfm.sendACK()
|
||||
|
||||
if rssi != 0:
|
||||
self._process(sid, data, rssi)
|
||||
|
||||
def stop(self):
|
||||
""" Stop the Receiving Loop """
|
||||
|
||||
self.__running = False
|
||||
|
||||
class LogConsole(object):
|
||||
""" This is an Example Observer Class That Logs received Sensor Data to STDOUT """
|
||||
|
||||
def __init__(self):
|
||||
""" NOOP, does nothing """
|
||||
pass
|
||||
|
||||
@staticmethod
|
||||
def notify(msg):
|
||||
""" Pretty-Print the received Data """
|
||||
|
||||
print('[' + time.strftime('%H:%M:%S %d %b %Y') + '] Message Received: ', end='')
|
||||
pprint(msg)
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,157 @@
|
|||
""" Module to Store Sensor Data into an RRD Database and update Corresponding Graphs """
|
||||
|
||||
import _thread, time
|
||||
import rrdtool
|
||||
|
||||
class RRDDB(object):
|
||||
""" Class to Represent the RRD Data of a Single Multi-Value Sensor """
|
||||
|
||||
def __init__(self, rrdfile, sid, imgpath=None, sensor_type="thp"):
|
||||
""" Initialize Class
|
||||
|
||||
Arguments:
|
||||
rrdfile: Path to the RRD Database File (mandatory)
|
||||
sid: Sensor ID which this RRD Database is for (mandatory)
|
||||
imgpath: Path to Store Images, if set Images will be updated on call of notify()
|
||||
sensor_type: Any combination of the following Letters:
|
||||
t - Temperature
|
||||
h - Humidity
|
||||
p - Pressure
|
||||
Default is 'thp' for a sensor sending all 3 values
|
||||
"""
|
||||
|
||||
self.__rrdfile = rrdfile
|
||||
self.__sid = sid
|
||||
self.__imgpath = imgpath
|
||||
self.__t = bool('t' in sensor_type)
|
||||
self.__h = bool('h' in sensor_type)
|
||||
self.__p = bool('p' in sensor_type)
|
||||
|
||||
def create(self, interval):
|
||||
""" Create a new RRD Database According to the Specified Sensor Types
|
||||
|
||||
Arguments:
|
||||
interval: Seconds between Sensor Updates
|
||||
"""
|
||||
|
||||
datasrc = []
|
||||
datasrc.append('DS:v:GAUGE:' + str(interval*2) + ':U:U')
|
||||
datasrc.append('DS:r:GAUGE:' + str(interval*2) + ':U:U')
|
||||
if self.__t:
|
||||
datasrc.append('DS:t:GAUGE:' + str(interval*2) + ':U:U')
|
||||
if self.__h:
|
||||
datasrc.append('DS:h:GAUGE:' + str(interval*2) + ':U:U')
|
||||
if self.__p:
|
||||
datasrc.append('DS:p:GAUGE:' + str(interval*2) + ':U:U')
|
||||
|
||||
rrdtool.create(self.__rrdfile,
|
||||
'--step', str(interval),
|
||||
datasrc,
|
||||
'RRA:LAST:0.5:1:105120',
|
||||
'RRA:AVERAGE:0.5:6:175680',
|
||||
'RRA:MAX:0.5:6:175680',
|
||||
'RRA:MIN:0.5:6:175680')
|
||||
|
||||
def notify(self, msg):
|
||||
""" Notify Method Called from the Receiver Class, Inserts Values into the RRD Database
|
||||
|
||||
Arguments:
|
||||
msg: Object Representation of the Sensor Data
|
||||
"""
|
||||
|
||||
if msg['sid'] == self.__sid:
|
||||
updstr = 'N:' + str(msg['v']) + ':' + str(msg['rssi'])
|
||||
if self.__t:
|
||||
updstr = updstr + ':' + str(msg['t'])
|
||||
if self.__h:
|
||||
updstr = updstr + ':' + str(msg['h'])
|
||||
if self.__p:
|
||||
updstr = updstr + ':' + str(msg['p'])
|
||||
rrdtool.update(self.__rrdfile, updstr)
|
||||
|
||||
if self.__imgpath != None:
|
||||
_thread.start_new_thread(self.update_web, ())
|
||||
|
||||
def _graph(self, value, start):
|
||||
""" Draw a Graph for a Specified Sensor Value
|
||||
|
||||
Arguments:
|
||||
value: Sensor Identifier (t, h, p, v or r)
|
||||
start: When to Start the Graph (24h, 7d, 30d, 1y)
|
||||
"""
|
||||
|
||||
types = {'t': ['Temperatur', '#FF0000', '°C'],
|
||||
'h': ['Luftfeuchte', '#0000FF', '%%'],
|
||||
'p': ['Luftdruck', '#00FF00', 'hPa'],
|
||||
'v': ['Batterie', '#FFFF00', 'V'],
|
||||
'r': ['RSSI', '#00FFFF', '']}
|
||||
times = {'24h': ['Letzte 24h', 'LAST'],
|
||||
'7d': ['Letzte 7 Tage', 'AVERAGE'],
|
||||
'30d': ['Letzte 30 Tage', 'AVERAGE'],
|
||||
'1y': ['Letzte 12 Monate', 'AVERAGE']}
|
||||
|
||||
rrdtool.graph(self.__imgpath + '/graph_' + value + '_' + start + '.png',
|
||||
'-s', 'now-' + start, '-e', 'now',
|
||||
'-t', times[start][0], '-z', '-A',
|
||||
'DEF:val=' + self.__rrdfile + ':'+ value + ':' + times[start][1],
|
||||
'VDEF:valmax=val,MAXIMUM',
|
||||
'VDEF:valmin=val,MINIMUM',
|
||||
'VDEF:valavg=val,AVERAGE',
|
||||
'LINE2:val'+types[value][1]+':'+types[value][0],
|
||||
'GPRINT:valavg:Avg %2.2lf '+types[value][2],
|
||||
'GPRINT:valmin:Min %2.2lf '+types[value][2],
|
||||
'GPRINT:valmax:Max %2.2lf '+types[value][2])
|
||||
|
||||
def update_web(self):
|
||||
""" Renew RRD Graphs and HTML for the Sensor Values """
|
||||
|
||||
if self.__t:
|
||||
self._graph('t', '24h')
|
||||
self._graph('t', '7d')
|
||||
self._graph('t', '30d')
|
||||
self._graph('t', '1y')
|
||||
if self.__h:
|
||||
self._graph('h', '24h')
|
||||
self._graph('h', '7d')
|
||||
self._graph('h', '30d')
|
||||
self._graph('h', '1y')
|
||||
if self.__p:
|
||||
self._graph('p', '24h')
|
||||
self._graph('p', '7d')
|
||||
self._graph('p', '30d')
|
||||
self._graph('p', '1y')
|
||||
|
||||
last = rrdtool.lastupdate(self.__rrdfile)
|
||||
|
||||
with open(self.__imgpath + '/index.html', 'w') as html:
|
||||
html.write('<html>\n<head>\n')
|
||||
html.write('<link rel="stylesheet" type="text/css" href="theme.css">\n')
|
||||
html.write('<meta http-equiv="refresh" content="300">')
|
||||
html.write('<title>Sensorlog RBS 3.OG</title>\n</head>')
|
||||
html.write('<body>\n<div id="header">\n')
|
||||
html.write('<h1>Sensorlog RBS 3.OG</h1></div>\n<div id="content">')
|
||||
if self.__t:
|
||||
html.write('<div><h3>Temperatur</h3>')
|
||||
html.write('<p id="current">Aktuell ' + str(last['ds']['t']) + ' °C</p>')
|
||||
html.write('<img src="./graph_t_24h.png" alt="Daily Graph" />')
|
||||
html.write('<img src="./graph_t_7d.png" alt="Weekly Graph" />')
|
||||
html.write('<img src="./graph_t_30d.png" alt="Monthly Graph" />')
|
||||
html.write('<img src="./graph_t_1y.png" alt="Yearly Graph" /></div>\n')
|
||||
if self.__h:
|
||||
html.write('<div><h3>Luftfeuchte</h3>')
|
||||
html.write('<p id="current">Aktuell ' + str(last['ds']['h']) + ' %</p>')
|
||||
html.write('<img src="./graph_h_24h.png" alt="Daily Graph" />')
|
||||
html.write('<img src="./graph_h_7d.png" alt="Weekly Graph" />')
|
||||
html.write('<img src="./graph_h_30d.png" alt="Monthly Graph" />')
|
||||
html.write('<img src="./graph_h_1y.png" alt="Yearly Graph" /></div>\n')
|
||||
if self.__p:
|
||||
html.write('<div><h3>Luftdruck</h3>')
|
||||
html.write('<p id="current">Aktuell ' + str(last['ds']['p']) + ' hPa</p>')
|
||||
html.write('<img src="./graph_p_24h.png" alt="Daily Graph" />')
|
||||
html.write('<img src="./graph_p_7d.png" alt="Weekly Graph" />')
|
||||
html.write('<img src="./graph_p_30d.png" alt="Monthly Graph" />')
|
||||
html.write('<img src="./graph_p_1y.png" alt="Yearly Graph" /></div>\n')
|
||||
if float(last['ds']['v']) < 2.5:
|
||||
html.write('<p class="warning">Batterien sind fast leer, bitte Wechseln!</p>')
|
||||
html.write('<p>Letztes Update: '+time.strftime('%d.%m.%Y %H:%M:%S')+' | Batteriespannung: '+str(last['ds']['v'])+'V </p>')
|
||||
html.write('</div></body></html>')
|
||||
Loading…
Reference in New Issue