2014-12-29 14.08.18 Published December 29, 2014 at 1024 × 768 in WiFi IoT 3 channel relay board with MQTT and HTTP API using ESP8266 ← Previous Next → Covers removed; Box has a status led and a on/off switch to kill the power. The Contactor in the breaker box has a manual switch as per wifey’s request Page views: 2894