3 channel led controller based on the ESP12-E, this is an opensource piece of hardware meant to control 3 LED channels, and to integrate with openhab via mqtt protocol.
Ray micro WiFi 3ch/5A MQTT&REST API LED dimmer GPL
This is a tiny (2x2.5cm) 3 channel led dimmer with MQTT connection, OTA upgrades and http config server. It can be embedded into lightbulbs

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