Blynk.cc to MQTT broker bridge

Blynk.cc nice project with nice Android application, but uses own protocol and library not implemented on some hardware.

This is simple bridge between Blynk.cc and MQTT. Only virtual pins allowed.

Setup

Setup your token and broker:

TOKEN = "YourAppToken"
MQTT_SERVER = "test.mosquitto.org"
MQTT_PORT = 1883
TOPIC = "/ESP009xxxxx"

And run python blynk-mqtt.py

Requires paho-mqtt python module

MQTT Topics

Virtual pin 0 write request will be published as /ESP009xxxxx/vw/0 topic. Virtual pin 0 read request will be published as /ESP009xxxxx/vr/0 topic and also will be send answer to Blynk.cc server - latest pin value. Where 0 is virtual pin number.

Bridge subscribes for all /ESP009xxxxx/# topics and translate them to virtual pins according translate table

translate_topic = (
	('sensors/bmpt', 0),
	('sensors/bmpp', 1),
)

This mean that value from topic /ESP009xxxxx/sensors/bmpt will be translate to virtual pin 0, for example.

Topics like /ESP009xxxxx/vw/0 will be translate to virtual pin 0.

Copyright

This work based on code blynk-library/tests/pseudo-library.py from Blynk.cc project.