Dec 11, 2015 — I picked up this 16 channel relay board from eBay: ... The "low level inputs" hook to Arduino output pins. The GND pin connects to Arduino ...
DOWNLOAD: https://byltly.com/2f4lag
DOWNLOAD: https://byltly.com/2f4lag
arduino-16-channel-relay-code
... reader, some simple input detect and a relay board all subscribed on an MQTT broker. Arduino mega with 16 channel relay boards. - jschaeke/arduinoHouse. 939c2ea5af
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