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===Relays=== We have some Finder 40.31 relays that arrived with the holders but they have 24vAC coils, these will be a pa

|5||Relays||||MLl

...e lights wired back to central control boards, fitted with contractors and relays.<br /> These relays can of course be switched by an Arduino or other micro and giving us ultima

* Relays messages to and from MQTT

** Four is good because it uses one bank of 8 relays

* GPIO inputs from four separate relays, or could monitor RS485 traffic

...board and add headers to have separate power for the logic circuit and the relays (which can't be driven by the regulator on the pro mini, which is too weedy

...color: #00C322">Nachimir</span>|| Matt Lloyd: Would like to send £30ish on relays for the lighting automation project. ...18</span>||<span style="color: #00C322">Nachimir</span>|| All in favour of relays? (All in favour so far)

|Relay switching units (8 relays per board) x 3 || £12.07 || [http://www.ebay.co.uk/itm/131121886412 eBay] |Relay switching units (8 relays per board) x 3 || £12.07 || [http://www.ebay.co.uk/itm/131121886412 eBay]

Relays - switches, etc.

...ll show the sender and preview of the message. The [[Discord]] bot already relays messages from non-private channels to MQTT.

** sketch on mega talks continuous serial to the atmega16u2 and relays USB HID info to the PC