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Adafruit Qualia ESP32-S3
AdafruitESP32-S3
A development board for RGB-666 displays with built-in support for SPI and I2C communication, featuring a PCA9554A IO expander and a Stemma QT connector.
In stock
Specifications
5- Operating Voltage
- 3.3V logic/power
- Flash
- 16MB
- Ram
- 8MB
- Gpio Count
- 20
- Dimensions
- Not explicitly stated, but the board is designed for RGB-666 displays.
Pinout
16Low source legibility.The original manufacturer datasheet for this part was difficult to read, so this pinout may be incomplete or imperfect. Always confirm against the specific manufacturer’s datasheet before wiring.
| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1 | Reset | GPIO | Tie to ground to manually reset the ESP32-S3. |
| 2 | Boot0 | GPIO | Tying this pin to ground while resetting places the ESP32-S3 in ROM bootloader mode. |
| 3 | Debug Pin (TX0) | UART | Used for lower level debugging, connect a Serial UART cable Receive connection here and the cable ground connection to the GND pin. |
| 4 | SCK | SPI | Connected to board.SCK or Arduino 5. |
| 5 | MISO | SPI | Connected to board.MISO or Arduino 6. |
| 6 | MOSI | SPI | Connected to board.MOSI or Arduino 7. |
| 7 | CS | SPI | Connected to board.CS or Arduino 15, includes a 10K Pull-up resistor. |
| A0 | Analog Input/Digital I/O | GPIO | 3-pin JST connector for sensors, NeoPixels, or analog input or digital I/O. Can use 5V or 3V by cutting and soldering the jumper. |
| A1 | Analog Input/Digital I/O | GPIO | Can be used for analog inputs or digital I/O. |
| 8 | PWM (Backlight Control) | PWM | Soldering the bottom PWM jumper allows using Pin A1 to control the backlight of the display. Default 25mA, up to 200mA with jumpers. |
| 9 | Button (UP) | GPIO | Connected to the IO expander and has a light pullup. |
| 10 | Button (DN) | GPIO | Connected to the IO expander and has a light pullup. |
| 11 | Button (Reset) | GPIO | Located in the top position, click once to restart firmware. Click again after about half a second to enter bootloader mode. |
| 12 | Stemma QT I2C SCL | I2C | Connected via the Stemma QT connector on the left side of the board. |
| 13 | Stemma QT I2C SDA | I2C | Connected via the Stemma QT connector on the left side of the board. |
| 14 | IO Expander (Address 0x3F) | GPIO | Default address, can be changed by soldering jumpers on the reverse side. |
Interactive pinout
Highlight:
ESP32-S3
Click a pin to copy its name · tap a tag above to spotlight a bus.