Dig-Next-2
Pinout Guide
Although you can install the pre-configured QuinLED WLED firmware, if you wish to use a different build or different software all together having the pinout will allow you to configure everything manually.
The Dig-Next-2 uses a recent (2025) version of the ESP32 module and has some pins available that were not available before, these are connected to the microphone, if you cannot select these pins you probably need to update to a new version of your software.
All GPIO inputs are only 3.3V compatible!
The cables for QEXT and Relay are included with your controller.
| Controller | GPIO | Use |
|---|---|---|
| LED1 | GPIO_2 | LED Data output |
| LED2 | GPIO_4 | LED Data output |
| External Relay | GPIO_5 | Control an external relay board, 5V Trigger output (yellow wire) |
| 5A_1 | GPIO20 | Control 5A_1 output "relay" |
| 10A_1 | GPIO21 | Control 10A_1 output "relay" |
| 5A_2 | GPIO22 | Control 5A_2 output "relay" |
| I2S-SD | GPIO_7 | Microphone SD (I2S PDM) |
| I2S-WS | GPIO_8 | Microphone WS (I2S PDM) |
| I²C SDA | GPIO15 | External I²C connections using Stemma QT/Qwiic connector |
| I²C SCL | GPIO14 | External I²C connections using Stemma QT/Qwiic connector |
| Button_1 | GPIO34 | Button input (HW debounced and pulled-high) |
| Button_2 | GPIO35 | Button input (HW debounced and pulled-high) |
| QEXT - Red | QEXT | QEXT - 3V3 |
| QEXT - Black | QEXT | QEXT - GND |
| QEXT - Yellow | GPIO_0 | QEXT - GPIO0 |
| QEXT - Green | GPIO25 | QEXT - GPIO25 |
| QEXT - Blue | GPIO32 | QEXT - GPIO32 |
| QEXT - White | GPIO33 | QEXT - GPIO33 |
Here are the pinout for the Relay and QEXT cable, these cables are included with the controller!
-
Relay Cable (3pin PH to wire)
- Red = (always) 5V
- Black = GND
- Yellow = (always) 5V trigger
-
QEXT Cable (2×3 pin PHD to female dupont)
- Red = (always) 3V3
- Black = GND
- Yellow = GPIO_0
- Green = GPIO25
- Blue = GPIO32
- White = GPIO33
