How to set up Bridge on raspi using python

Need Help With My Project
, ,
1

I have a raspi running Blynk-Library-Python to monitor my solar panels. I want to be able to write the solar wattage value to a ESP8266 that controls a device which I want to run only when the panels are generating above a certain level. I see many good examples for setting up the bridge code for Arduino, but none for python library. appreciate any help on proper syntax for python

"""
  Downloads, docs, tutorials: http://www.blynk.cc
"""

import BlynkLib
import time
import smbus
import time
import struct

bus = smbus.SMBus(1)
address = 0x03
solar_data  =  [0.0,0.0,0.0,0.0]
BLYNK_AUTH = 'xxxxxxx'




# Initialize Blynk
blynk = BlynkLib.Blynk(BLYNK_AUTH)

# Register virtual pin handler
@blynk.VIRTUAL_READ(2)
def v2_read_handler():
    global solar_data
    valid =  True
    while valid:
        try:
            data = bus.read_i2c_block_data(address, 0);
            valid = False
        except:
            print "Error getting data\n"

    for i in range(0, 4):
        bytes = data[4*i:4*i+4]
        # Python 2 struct.unpack takes the data to be unpacked
        # in string format, so the bytes need to be joined
        solar_data[i] = struct.unpack('f', "".join(map(chr, bytes)))[0]
    # This widget will show solar data..
    blynk.virtual_write(2, solar_data[3])
#    blynk.virtual_write(3, solar_data[0])

@blynk.VIRTUAL_READ(3)
def v3_read_handler():
    global solar_data
    blynk.virtual_write(3, solar_data[0])


# Start Blynk (this call should never return)
blynk.run()
2

I believe Python is still in Alpha, thus possibly no actual bridge setup yet… at least nothing I can easily find in the library, aside from one line…

MSG_BRIDGE = const(15)