Snap MQTT bridge

Package to send MQTT messages from Snap (https://snap.berkeley.edu/).

Objective: enable the Snap programming system to send messages to a MQTT broker.

What you need:

• Internet connection (to use Snap).
• Python 3.x
• paho-mqtt library in Python (pip3 install paho-mqtt)
• A MQTT broker (mosquitto or a online server)

How to use?

1. Configure Snap-MQTT.py with your broker addresses (in the line: client.connect("localhost",1883,60)).
2. Run python3 Snap-MQTT.py.
3. Start Snap.
4. Import Snap-MQTT.xlm.
5. Send MQTT message using the imported block (in 'Variables' menu).

Todo (help!):

Receive MQTT messages:

• Block to suscribe to a topic (run only once).
• Receive messages and keep them in the python server.
• Block to read actual values (last received).