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#!/usr/bin/env python3
# coding: utf-8
from __future__ import absolute_import, print_function
import sys
import argparse
import socket
from datetime import datetime
import can
from can import Bus, BusState, Logger
import paho.mqtt.client as mqtt
topic = "sunevents"
event_map = {
'sunrise': "up",
'night': "down",
}
coil_map = {
'ROL_EZ_DOWN': [0x03,0x05],
'ROL_EZ_UP': [0x03,0x04]
}
group_map = {
'up': ['ROL_EZ_UP'],
'down': ['ROL_EZ_DOWN']
}
cmd_map = {
'off': 0,
'on': 1,
'value': 2,
'toggle': 3
}
def decon(msg_id):
msg_prio=msg_id>>26
msg_type=(msg_id>>24) & 0x03
msg_dst=(msg_id>>16) & 0xFF
msg_src=(msg_id>>8) & 0xFF
msg_cmd=msg_id & 0xFF
# print("msg_id: ", hex(msg_id), "prio: ", hex(msg_prio),"type: ", hex(msg_type)," dst: ", hex(msg_dst)," src: ", hex(msg_src)," cmd: ",hex(msg_cmd))
return [msg_prio, msg_type, msg_dst, msg_src, msg_cmd]
def con(msg_dst,msg_cmd,msg_prio=3,msg_type=0,msg_src=11, ):
msg_id=(msg_prio<<26) + \
((msg_type&0x03)<<24) +\
((msg_dst&0xFF)<<16) +\
((msg_src&0xFF)<<8) +\
(msg_cmd&0xFF)
print("Constructed ID: "+hex(msg_id))
return msg_id
def on_connect(mcp_mqtt, userdata, flags, rc):
print("Connected with result code "+str(rc))
# Subscribing in on_connect() means that if we lose the connection and
# reconnect then subscriptions will be renewed.
mcp_mqtt.subscribe(topic)
print("Subscribed to:",topic)
def on_message(mcp_mqtt, userdata, msg):
local_bus=userdata
print("data Received topic: ", msg.topic)
m_decode=str(msg.payload.decode("utf-8","ignore"))
print("data Received",m_decode)
data=m_decode
event=event_map[data]
if event is not None:
# event=sub
for key, value in coil_map.items():
msg_id=con(msg_dst=value[0],msg_cmd=0)
msg_data=[value[1]]
print("turning off: ",key,value[0],value[1])
m = can.Message(arbitration_id=msg_id,
data=msg_data,
extended_id=True)
print("going to sent to CAN",m)
try:
local_bus.send(m)
except BaseException as e:
logging.error("Error sending can message {%s}: %s" % (m, e))
print("data sent to CAN",m)
print("Group: ",event)
for coil in group_map[event]:
print("turning on", coil)
addr = coil_map[coil]
msg_id=con(msg_dst=addr[0],msg_cmd=1)
msg_data=[addr[1]]
print(msg_data)
m = can.Message(arbitration_id=msg_id,
data=msg_data,
extended_id=True)
print("going to sent to CAN",m)
try:
local_bus.send(m)
except BaseException as e:
logging.error("Error sending can message {%s}: %s" % (m, e))
print("data sent to CAN",m)
def main():
verbosity = 2
logging_level_name = ['critical', 'error', 'warning', 'info', 'debug', 'subdebug'][min(5, verbosity)]
can.set_logging_level(logging_level_name)
can_filters = []
config = {"can_filters": can_filters, "single_handle": True}
config["interface"] = "socketcan"
config["bitrate"] = 125000
bus = Bus("can1", **config)
print('Connected to {}: {}'.format(bus.__class__.__name__, bus.channel_info))
print('Can Logger (Started on {})\n'.format(datetime.now()))
mcp_mqtt = mqtt.Client()
mcp_mqtt.on_connect = on_connect
mcp_mqtt.on_message = on_message
mcp_mqtt.user_data_set(bus)
mcp_mqtt.connect("mcp", 1883, 60)
try:
while True:
mcp_mqtt.loop_start()
msg = bus.recv(1)
if msg is not None:
de=decon(msg.arbitration_id)
m= { "prio": hex(de[0]), "type": hex(de[1]), "dst": hex(de[2]), "src": hex(de[3]), "cmd": hex(de[4]), "action": hex(msg.data[0]) }
# print(m)
# mcp_mqtt.publish("can/rx", str(m))
except KeyboardInterrupt:
pass
finally:
bus.shutdown()
if __name__ == "__main__":
main()