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_C020_LoraDirect.py
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_C020_LoraDirect.py
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#!/usr/bin/env python3
#############################################################################
################## LORA Direct controller for RPIEasy #######################
#############################################################################
#
# This controller is able to harvest datas arriving from direct LORA sensors
# or to send LORA RAW data. This is NOT LoraWan, it is direct LORA connection
# between local nodes!
#
# Supported hardware is SX1278 through PyLora
#
# Copyright (C) 2018-2019 by Alexander Nagy - https://bitekmindenhol.blog.hu/
#
import controller
import misc
import rpieGlobals
import time
from rpieTime import *
import webserver
import commands
import Settings
import gpios
from datetime import datetime
import lib.lib_p2pbuffer as p2pbuffer
from SX127x.LoRa import *
from SX127x.board_config import BOARD
CAPABILITY_BYTE = (1+2) # send and receive
class Controller(controller.ControllerProto):
CONTROLLER_ID = 20
CONTROLLER_NAME = "LORA Direct (EXPERIMENTAL)"
def __init__(self,controllerindex):
controller.ControllerProto.__init__(self,controllerindex)
self.usesID = True
self.onmsgcallbacksupported = False # use direct set_value() instead of generic callback to make sure that values setted anyway
self.controllerport = 1
self.lora = None
self.sysinfosent=False
self.timer30s = True
self.sf = 9
self.bw = BW.BW250
self.coding = CODING_RATE.CR4_5
self.freq = 869.5
self.sync = 0x12
self.duty = 10
self.defaultunit = 0
self.enablesend = True
def controller_init(self,enablecontroller=None):
if enablecontroller != None:
self.enabled = enablecontroller
self.initialized = False
if self.enabled:
if int(Settings.Settings["Unit"])>0:
self.controllerport = Settings.Settings["Unit"]
try:
BOARD.setup()
gpios.HWPorts.remove_event_detect(BOARD.DIO0)
gpios.HWPorts.remove_event_detect(BOARD.DIO1)
gpios.HWPorts.remove_event_detect(BOARD.DIO2)
gpios.HWPorts.remove_event_detect(BOARD.DIO3)
except Exception as e:
misc.addLog(rpieGlobals.LOG_LEVEL_ERROR,"LORA Direct preinit msg: "+str(e))
try:
self.lora = LoRaRcvCont(self.pkt_receiver)
self.connect()
self.initialized = True
misc.addLog(rpieGlobals.LOG_LEVEL_INFO,"LORA Direct initialized")
except Exception as e:
self.initialized = False
misc.addLog(rpieGlobals.LOG_LEVEL_ERROR,"LORA Direct init error: "+str(e))
return True
def connect(self):
self.connected = False
self.sysinfosent = False
try:
if self.lora is not None:
self.lora.set_mode(MODE.STDBY)
self.lora.set_pa_config(pa_select=1, max_power=21, output_power=15)
self.lora.set_spreading_factor(self.sf)
self.lora.set_bw(self.bw)
self.lora.set_coding_rate(self.coding)
self.lora.set_rx_crc(True)
self.lora.set_freq(self.freq)
self.lora.set_sync_word(self.sync) # default setting of 0x12 and a LoRaWAN setting of 0x34
assert(self.lora.get_agc_auto_on() == 1)
self.lora.loraduty = self.duty
self.lora.start()
self.connected = True
except Exception as e:
misc.addLog(rpieGlobals.LOG_LEVEL_ERROR,"LORA Direct connect error: "+str(e))
def disconnect(self):
self.connected = False
try:
if self.lora is not None:
self.lora.set_mode(MODE.SLEEP)
BOARD.spi.close()
gpios.HWPorts.remove_event_detect(BOARD.DIO0)
gpios.HWPorts.remove_event_detect(BOARD.DIO1)
gpios.HWPorts.remove_event_detect(BOARD.DIO2)
gpios.HWPorts.remove_event_detect(BOARD.DIO3)
except:
pass
def webform_load(self):
webserver.addFormNote("IP and Port parameter is not used!")
webserver.addFormNote("SX127x hardware supported by pyLoRa library")
webserver.addHtml("<p>Example sender sketches could be find <a href='https://github.com/enesbcs/EasyLora'>here</a>.")
# if self.lora is not None:
# webserver.addFormNote("LoRa version: "+str(self.lora.get_version()))
try:
webserver.addTableSeparator("Hardware settings",2,3)
if BOARD.SPI_BUS==0:
webserver.addHtml("<tr><td>SPI0 selected<td><i>(MOSI=GPIO10, MISO=GPIO9, SCK=GPIO11, NSS=GPIO8)</i>")
spiok = False
if gpios.HWPorts.is_spi_usable(BOARD.SPI_BUS):
if gpios.HWPorts.is_spi_enabled(BOARD.SPI_BUS):
webserver.addHtml(" - <b>SPI0 enabled</b>")
spiok = True
if spiok==False:
webserver.addHtml("<tr><td><td>Enable SPI0 first at hardware <a href='pinout'>pinout page</a>!")
else:
webserver.addHtml("<tr><td><td>You have modified BOARD constants, so you are an expert!")
webserver.addHtml("<tr><td>DIO0 (IRQ)<td>GPIO"+str(BOARD.DIO0))
webserver.addHtml("<tr><td>DIO1<td>GPIO"+str(BOARD.DIO1))
webserver.addHtml("<tr><td>DIO2<td>GPIO"+str(BOARD.DIO2))
webserver.addHtml("<tr><td>DIO3<td>GPIO"+str(BOARD.DIO3))
webserver.addHtml("<tr><td>RST<td>GPIO"+str(BOARD.RST))
webserver.addTableSeparator("LoRa settings",2,3)
webserver.addFormFloatNumberBox("Frequency","freq",self.freq,433,928)
webserver.addUnit("Mhz")
if self.lora is not None:
try:
afreq = self.lora.get_freq()
except:
afreq = "UNINITIALIZED"
webserver.addFormNote("Current frequency: "+str(afreq)+" Mhz")
webserver.addFormNote("Please check local regulations for your selected frequency!")
options = ["10%","1%","0.1%"]
optionvalues = [10,100,1000]
webserver.addFormSelector("Duty cycle","duty",len(optionvalues),options,optionvalues,None,self.duty)
webserver.addFormNote("Please check your local Duty cycle regulations for your selected frequency!")
webserver.addFormNumericBox("Spreading factor","spreading",self.sf,6,12)
options = ["7.8","10.4","15.6","20.8","31.25","41.7","62.5","125","250","500"]
optionvalues = [BW.BW7_8, BW.BW10_4, BW.BW15_6, BW.BW20_8, BW.BW31_25, BW.BW41_7, BW.BW62_5, BW.BW125, BW.BW250, BW.BW500]
webserver.addFormSelector("Bandwidth","bw",len(optionvalues),options,optionvalues,None,self.bw)
webserver.addUnit("khz")
options = ["CR4/5","CR4/6","CR4/7","CR4/8"]
optionvalues = [CODING_RATE.CR4_5,CODING_RATE.CR4_6,CODING_RATE.CR4_7,CODING_RATE.CR4_8]
webserver.addFormSelector("Coding rate","coding",len(optionvalues),options,optionvalues,None,self.coding)
webserver.addFormNumericBox("Sync Word","sync",self.sync,0,255)
webserver.addHtml("( 0x"+format(self.sync, '02x')+" )")
webserver.addFormNote("Default 0x12, LoRaWAN is 0x34. Nodes can only communicate each other if uses same sync word!")
webserver.addFormCheckBox("Enable Sending","sender",self.enablesend)
webserver.addFormNumericBox("Default destination node index","defaultnode",self.defaultunit,0,255)
webserver.addFormNote("Default node index for data sending")
except Exception as e:
misc.addLog(rpieGlobals.LOG_LEVEL_ERROR,str(e))
return True
def webform_save(self,params):
try:
self.freq = float(webserver.arg("freq",params))
self.duty = int(webserver.arg("duty",params))
self.sf = int(webserver.arg("spreading",params))
self.coding = int(webserver.arg("coding",params))
self.sync = int(webserver.arg("sync",params))
self.defaultunit = int(webserver.arg("defaultnode",params))
self.enablesend = (webserver.arg("sender",params)=="on")
except Exception as e:
misc.addLog(rpieGlobals.LOG_LEVEL_ERROR,"LORA parameter save: "+str(e))
return True
def nodesort(self,item):
v = 0
try:
v = int(item["unitno"])
except:
v = 0
return v
def pkt_receiver(self,payload,rssi):
if self.enabled:
dp = p2pbuffer.data_packet()
dp.buffer = payload
# print(payload,dp.buffer)
dp.decode()
if dp.pkgtype!=0:
if dp.pkgtype==1:
# print(dp.infopacket)
if int(dp.infopacket["unitno"]) == int(Settings.Settings["Unit"]): # skip own messages
return False
un = getunitordfromnum(dp.infopacket["unitno"]) # process incoming alive reports
if un==-1:
# CAPABILITIES byte: first bit 1 if able to send, second bit 1 if able to receive
Settings.p2plist.append({"protocol":"LORA","unitno":dp.infopacket["unitno"],"name":dp.infopacket["name"],"build":dp.infopacket["build"],"type":dp.infopacket["type"],"mac":dp.infopacket["mac"],"lastseen":datetime.now(),"lastrssi":rssi,"cap":dp.infopacket["cap"]})
misc.addLog(rpieGlobals.LOG_LEVEL_INFO,"New LORA unit discovered: "+str(dp.infopacket["unitno"])+" "+str(dp.infopacket["name"]))
Settings.p2plist.sort(reverse=False,key=self.nodesort)
else:
misc.addLog(rpieGlobals.LOG_LEVEL_DEBUG,"Unit alive: "+str(dp.infopacket["unitno"]))
if Settings.p2plist[un]["type"]==0:
Settings.p2plist[un]["name"] = dp.infopacket["name"]
Settings.p2plist[un]["build"] = dp.infopacket["build"]
Settings.p2plist[un]["type"] = dp.infopacket["type"]
Settings.p2plist[un]["mac"] = dp.infopacket["mac"]
Settings.p2plist[un]["cap"] = dp.infopacket["cap"]
Settings.p2plist[un]["lastseen"] = datetime.now()
Settings.p2plist[un]["lastrssi"] = rssi
elif dp.pkgtype==5: # process incoming data
if int(dp.sensordata["sunit"])==int(Settings.Settings["Unit"]):
return False
un = getunitordfromnum(dp.sensordata["sunit"])
if un>-1: # refresh lastseen data
Settings.p2plist[un]["lastseen"] = datetime.now()
Settings.p2plist[un]["lastrssi"] = rssi
else:
Settings.p2plist.append({"protocol":"LORA","unitno":dp.sensordata["sunit"],"name":"","build":0,"type":0,"mac":"","lastseen":datetime.now(),"lastrssi":rssi,"cap":1})
if (int(Settings.Settings["Unit"])==int(dp.sensordata["dunit"])) or (0==int(dp.sensordata["dunit"])): # process only if we are the destination or broadcast
ltaskindex = -1
for x in range(0,len(Settings.Tasks)): # check if the sent IDX already exists?
try:
if (type(Settings.Tasks[x]) is not bool and Settings.Tasks[x]):
if Settings.Tasks[x].controlleridx[self.controllerindex]==int(dp.sensordata["idx"]):
ltaskindex = x
break
except Exception as e:
print(e)
dvaluecount = int(dp.sensordata["valuecount"])
if rpieGlobals.VARS_PER_TASK<dvaluecount: # avoid possible buffer overflow
dvaluecount = rpieGlobals.VARS_PER_TASK
if ltaskindex < 0: # create new task if necessarry
devtype = int(dp.sensordata["pluginid"])
m = False
try:
for y in range(len(rpieGlobals.deviceselector)):
if int(rpieGlobals.deviceselector[y][1]) == devtype:
m = __import__(rpieGlobals.deviceselector[y][0])
break
except:
m = False
TempEvent = None
if m:
try:
TempEvent = m.Plugin(-1)
except:
TempEvent = None
if True:
ltaskindex = -1
for x in range(0,len(Settings.Tasks)): # check if there are free TaskIndex slot exists
try:
if (type(Settings.Tasks[x]) is bool):
if Settings.Tasks[x]==False:
ltaskindex = x
break
except:
pass
devtype = 33 # dummy device
m = False
try:
for y in range(len(rpieGlobals.deviceselector)):
if int(rpieGlobals.deviceselector[y][1]) == devtype:
m = __import__(rpieGlobals.deviceselector[y][0])
break
except:
m = False
if m:
if ltaskindex<0:
ltaskindex = len(Settings.Tasks)
try:
Settings.Tasks[ltaskindex] = m.Plugin(ltaskindex)
except:
ltaskindex = len(Settings.Tasks)
Settings.Tasks.append(m.Plugin(ltaskindex)) # add a new device
Settings.Tasks[ltaskindex].plugin_init(True)
Settings.Tasks[ltaskindex].remotefeed = True # Mark that this task accepts incoming data updates!
Settings.Tasks[ltaskindex].enabled = True
Settings.Tasks[ltaskindex].interval = 0
Settings.Tasks[ltaskindex].senddataenabled[self.controllerindex]=True
Settings.Tasks[ltaskindex].controlleridx[self.controllerindex]=int(dp.sensordata["idx"])
if TempEvent is not None:
Settings.Tasks[ltaskindex].taskname = TempEvent.PLUGIN_NAME.replace(" ","")
for v in range(dvaluecount):
Settings.Tasks[ltaskindex].valuenames[v] = TempEvent.valuenames[v]
Settings.Tasks[ltaskindex].taskdevicepluginconfig[0] = TempEvent.vtype
Settings.Tasks[ltaskindex].vtype = TempEvent.vtype
else:
Settings.Tasks[ltaskindex].taskname = Settings.Tasks[ltaskindex].PLUGIN_NAME.replace(" ","")
Settings.Tasks[ltaskindex].valuecount = dvaluecount
Settings.savetasks()
if ltaskindex<0:
return False
misc.addLog(rpieGlobals.LOG_LEVEL_DEBUG,"Sensordata update arrived from unit "+str(dp.sensordata["sunit"])) # save received values
if Settings.Tasks[ltaskindex].remotefeed:
for v in range(dvaluecount):
Settings.Tasks[ltaskindex].set_value(v+1,dp.sensordata["values"][v],False)
Settings.Tasks[ltaskindex].plugin_senddata()
elif dp.pkgtype==7: # process incoming command
if int(dp.cmdpacket["sunit"])==int(Settings.Settings["Unit"]):
return False
un = getunitordfromnum(dp.cmdpacket["sunit"])
if un>-1: # refresh lastseen data
Settings.p2plist[un]["lastseen"] = datetime.now()
Settings.p2plist[un]["lastrssi"] = rssi
else:
Settings.p2plist.append({"protocol":"LORA","unitno":dp.cmdpacket["sunit"],"name":"","build":0,"type":0,"mac":"","lastseen":datetime.now(),"lastrssi":rssi,"cap":1})
if (int(Settings.Settings["Unit"])==int(dp.cmdpacket["dunit"])) or (0==int(dp.cmdpacket["dunit"])): # process only if we are the destination or broadcast
misc.addLog(rpieGlobals.LOG_LEVEL_INFO,"Command arrived from "+str(dp.cmdpacket["sunit"]))
# print(dp.cmdpacket["cmdline"]) # DEBUG
commands.doExecuteCommand(dp.cmdpacket["cmdline"],True)
def senddata(self,idx,sensortype,value,userssi=-1,usebattery=-1,tasknum=-1,changedvalue=-1): # called by plugin
if self.enabled and self.initialized and self.enablesend:
if int(idx)>0:
if Settings.Tasks[tasknum].remotefeed == False: # do not republish received values
dp2 = p2pbuffer.data_packet()
dp2.sensordata["sunit"] = Settings.Settings["Unit"]
dp2.sensordata["dunit"] = self.defaultunit
dp2.sensordata["idx"] = idx
if tasknum>-1:
dp2.sensordata["pluginid"] = Settings.Tasks[tasknum].pluginid
else:
dp2.sensordata["pluginid"] = 33
dp2.sensordata["valuecount"] = Settings.Tasks[tasknum].valuecount
for u in range(Settings.Tasks[tasknum].valuecount):
dp2.sensordata["values"][u] = Settings.Tasks[tasknum].uservar[u]
dp2.encode(5)
return self.lora.lorasend(dp2.buffer)
def sendcommand(self,unitno,commandstr):
if self.enabled and self.initialized and self.enablesend:
dpc = p2pbuffer.data_packet()
dpc.cmdpacket["sunit"] = Settings.Settings["Unit"]
dpc.cmdpacket["dunit"] = unitno
dpc.cmdpacket["cmdline"] = commandstr
dpc.encode(7)
return self.lora.lorasend(dpc.buffer)
def timer_thirty_second(self):
if self.enabled and (self.sysinfosent==False) and self.initialized:
self.sysinfosent = self.sendsysinfo()
def sendsysinfo(self):
if self.enabled and self.initialized and self.enablesend:
dp = p2pbuffer.data_packet()
try:
defdev = Settings.NetMan.getprimarydevice()
except:
defdev = -1
if defdev != -1:
dp.infopacket["mac"] = Settings.NetworkDevices[defdev].mac
else:
dp.infopacket["mac"] = "00:00:00:00:00:00"
dp.infopacket["unitno"] = int(Settings.Settings["Unit"])
dp.infopacket["build"] = int(rpieGlobals.BUILD)
dp.infopacket["name"] = Settings.Settings["Name"]
dp.infopacket["type"] = int(rpieGlobals.NODE_TYPE_ID_RPI_EASY_STD)
# CAPABILITIES byte: first bit 1 if able to send, second bit 1 if able to receive
dp.infopacket["cap"] = int(CAPABILITY_BYTE)
dp.encode(1)
return self.lora.lorasend(dp.buffer)
return False
class LoRaRcvCont(LoRa):
def __init__(self, receiverfunc=None, verbose=False):
super(LoRaRcvCont, self).__init__(verbose)
self.receiverfunc=receiverfunc
self.set_mode(MODE.SLEEP)
self.set_dio_mapping([0] * 6)
self.tx_active = False
self.tx_start = 0
self.tx_end = 0
self.nexttransmit = 0
self.loraduty = 100
def on_rx_done(self):
# print("\nRxDone")
payload = self.read_payload(nocheck=True)
rssi = self.get_pkt_rssi_value()
# print(bytes(payload).decode("utf-8",'ignore'))
# print(rssi)
# print(payload,len(payload),type(payload))
# for i in range(0,len(payload)):
# print(payload[i])
bpayload = bytes(payload)
# print(bpayload)
if self.receiverfunc:
self.receiverfunc(bpayload,rssi)
self.clear_irq_flags(RxDone=1)
self.reset_ptr_rx()
self.set_mode(MODE.RXCONT)
def on_tx_done(self):
self.tx_end = millis()
self.nexttransmit = ((self.tx_end-self.tx_start)*self.loraduty)+self.tx_end
# print("\nTxDone") # DEBUG
self.set_mode(MODE.STDBY)
self.clear_irq_flags(TxDone=1) # clear txdone IRQ flag
# self.set_dio_mapping([0] * 6)
self.start()
def on_payload_crc_error(self):
print("\non_PayloadCrcError") # DEBUG
print(self.get_irq_flags())
def start(self):
self.set_dio_mapping([0] * 6)
self.reset_ptr_rx()
self.set_mode(MODE.RXCONT)
self.tx_active = False
# while True: # DEBUG
# time.sleep(1)
# rssi_value = self.get_rssi_value()
# status = self.get_modem_status()
# sys.stdout.flush()
# sys.stdout.write("\r%d %d %d" % (rssi_value, status['rx_ongoing'], status['modem_clear']))
def lorasend(self,payload):
if self.tx_active:
return False
self.tx_start = millis()
if self.tx_start<self.nexttransmit:
misc.addLog(rpieGlobals.LOG_LEVEL_DEBUG,"Next possible transmit "+str(self.nexttransmit))
return False
self.tx_active = True
try:
self.write_payload(list(payload))
self.set_dio_mapping([1,0,0,0,0,0])
except:
self.tx_active = False
return False
self.tx_start = millis()
self.set_mode(MODE.TX)
# print("Sending ",payload) # DEBUG
return True
# Helper functions
def getunitordfromnum(unitno):
for n in range(len(Settings.p2plist)):
if int(Settings.p2plist[n]["unitno"]) == int(unitno) and str(Settings.p2plist[n]["protocol"]) == "LORA":
return n
return -1