
The Art Controller is a multitalented, stand-alone relay module with microcontroller based timing and logic. Easier to adjust and more versatile than most other low-cost time-delay relay modules, the Art Controller can switch AC or DC loads and is reprogrammable to handle the…
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.
Normally-closed relay terminal. Connected to COM when the relay coil is idle or power is removed, per Adafruit product page.
Normally-open relay terminal. Connected to COM when the relay coil is energised, per Adafruit product page.
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.
Recommended load rating 24 V DC / 40 VAC, 5 A; NO contact 10 A only, per Adafruit product page. · Relay contact load terminal, see COM rating.
Verify supply voltage and logic levels before powering up.
Module pins: Input power. Schematik maps them to your board in the app.
SparkFun Qwiic Pro Micro BoogieBoard visual preview
9V to Barrel Jack Adapter visual preview
SparkFun 16x2 SerLCD - RGB Backlight (Qwiic) visual preview
MicroUSB Plug to 5.5/2.1mm DC Barrel Jack Adapter | Kiwi Electronics visual previewSort passive connector adapters from Qwiic boards, LCD modules and microSD card adapters before assuming anything with the right plug will substitute safely.
Connectors & cables · Connectors · 28 parts
RGB backlight positive LCD 16x2 visual preview
SparkFun 16x2 SerLCD - RGB Backlight (Qwiic) visual preview
I2C 20x4 Arduino LCD Display Module visual preview
Gravity: I2C 16x2 Arduino LCD with RGB Backlight Display V2.0 visual previewCharacter LCDs, SPI TFTs, e-paper modules and larger capacitive-touch TFT panels solve different display jobs. Treat display class, interface, controller, resolution, touch, refresh behaviour, storage, voltage and mounting as separate swap checks.
Displays · TFT & LCD displays · 35 parts
MQ-2 Gas Sensor visual preview
MQ-3 Gas Sensor visual preview
MQ-135 Gas Sensor visual preview
Grove - Air quality sensor visual previewChoose between MQ gas sensors, VOC/eCO2 indoor-air sensors, true CO2 modules and particulate sensors without treating every air-quality breakout as the same detector.
Sensors · Gas & air-quality sensors · 31 parts
Arduino Uno visual preview
Raspberry Pi Pico visual preview
Adafruit Feather nRF52840 Express visual preview
Pan-Tilt HAT kit visual previewESP32, Arduino Uno, Raspberry Pi Pico, and compatible add-on boards for running builds.
Boards · Microcontroller boards · 24 parts
Screw terminal input power for the Art Controller microcontroller and relay.
Auxiliary low-going input that reverts the controller to idle and can prevent new triggers when held low.
Configuration jumper pin. Soldering this pin to ground makes the controller trigger on power-up.
Configuration jumper pin. Soldering this pin to ground makes a second trigger act as cancel/stop.
Configuration jumper pin. Soldering this pin to ground makes the relay cycle repeat with on/off delay periods.
| Pin | Position | 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. |