scratch_messaging_extension

A scratch extension that provides remote messaging capability between several scratch instances/programs via mqtt

prerequisites

1. node-red installed
2. access to a mqtt broker

usage

1. import nodered_http_mqtt_bridge.json into mqtt.
2. configure mqtt broker (ip and port) in node-red
3. import blocksDefinition.json into scratch (press shift -> menu open file -> import experimental http extension)
4. play around with the new blocks

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