Art Controller Relay Board Kit

Stand-alone relay module with onboard microcontroller for timing and logic control. Switches AC or DC loads via relay and is reprogrammable for custom trigger/delay applications such as coin-operated activation or timed sequencing.

Relay COM
Common terminal of the SPDT relay output terminal block. Adafruit says COM is connected to NC when idle and to NO when the coil is energised.
Type · switchVoltage · Recommended load rating 24 V DC / 40 VAC, 5 A; NO contact 10 A only, per Adafruit product page.
Relay NC
Normally-closed relay terminal. Connected to COM when the relay coil is idle or power is removed, per Adafruit product page.
Type · switchVoltage · Relay contact load terminal, see COM rating.
Relay NO
Normally-open relay terminal. Connected to COM when the relay coil is energised, per Adafruit product page.
Type · switchVoltage · Relay contact load terminal, see COM rating; Adafruit notes 10 A normally-open only.
Trigger input
Two-pin trigger input for a normally-open button/switch or external low-going logic signal; closing the two trigger pins starts the controller cycle.
Type · digitalVoltage · Logic/input terminal; product page says low-going signal is perceived like a button press.
Input power

Relays

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Pin	Type	Function	Voltage
Relay COM	switch	Common terminal of the SPDT relay output terminal block. Adafruit says COM is connected to NC when idle and to NO when the coil is energised.	Recommended load rating 24 V DC / 40 VAC, 5 A; NO contact 10 A only, per Adafruit product page.
Relay NC	switch	Normally-closed relay terminal. Connected to COM when the relay coil is idle or power is removed, per Adafruit product page.	Relay contact load terminal, see COM rating.
Relay NO	switch	Normally-open relay terminal. Connected to COM when the relay coil is energised, per Adafruit product page.	Relay contact load terminal, see COM rating; Adafruit notes 10 A normally-open only.
Trigger input	digital	Two-pin trigger input for a normally-open button/switch or external low-going logic signal; closing the two trigger pins starts the controller cycle.	Logic/input terminal; product page says low-going signal is perceived like a button press.
Input power	power	Screw terminal input power for the Art Controller microcontroller and relay.	Runs from 7-15 V DC through onboard regulator, or 5 V directly, per Adafruit product page.
Cancel Trigger	digital	Auxiliary low-going input that reverts the controller to idle and can prevent new triggers when held low.	Configuration/logic input, held low or connected to ground per Adafruit product page.
Trigger @ Reset	configuration	Configuration jumper pin. Soldering this pin to ground makes the controller trigger on power-up.	Jumper to ground per Adafruit product page.
Start/Stop on Trigger	configuration	Configuration jumper pin. Soldering this pin to ground makes a second trigger act as cancel/stop.	Jumper to ground per Adafruit product page.
Repeat	configuration	Configuration jumper pin. Soldering this pin to ground makes the relay cycle repeat with on/off delay periods.	Jumper to ground per Adafruit product page.

Pinout

LED pixels

Bare ICs

Converters

Memory