Adapter board that converts the RP2350's 22-pin 0.5 mm FPC HSTX output to a full-size HDMI connector carrying DVI video — no PIO overclocking required. Supports up to 320×240 at 16-bit color (pixel-doubled to 640×480).
Output from the 3.3V regulator on the 22-pin port.
Common ground for power and logic on the 22-pin port.
Main I2C1 clock pin on the 22-pin port.
Main I2C1 data pin on the 22-pin port.
Digital I/O pin 11; also used for DVI hot plug detect through the DVI port/jumper.
Digital I/O pin 10; also used for DVI CEC through the DVI port/jumper.
HSTX peripheral pin, connected to DVI TMDS channel 0 negative.
HSTX peripheral pin, connected to DVI TMDS channel 0 positive.
HSTX peripheral pin, connected to DVI TMDS channel 1 negative.
HSTX peripheral pin, connected to DVI TMDS channel 1 positive.
HSTX peripheral pin, connected to DVI TMDS clock negative.
HSTX peripheral pin, connected to DVI TMDS clock positive.
HSTX peripheral pin, connected to DVI TMDS channel 2 negative.
HSTX peripheral pin, connected to DVI TMDS channel 2 positive.
DVI output port carrying TMDS clock/data, hot plug detect, and CEC as documented on the Adafruit pinouts page.
Cuttable jumper that disconnects the CEC signal from GPIO10.
Cuttable jumper that disconnects hot plug detect from GPIO11.
| Pin | Type | Function | Voltage |
|---|---|---|---|
| 3.3V | Power | Output from the 3.3V regulator on the 22-pin port. | 3.3V |
| GND | Ground | Common ground for power and logic on the 22-pin port. | |
| GPIO3SCL | GPIO, I2C | Main I2C1 clock pin on the 22-pin port. | |
| GPIO2SDA | GPIO, I2C | Main I2C1 data pin on the 22-pin port. | |
| D11GPIO11 | GPIO | Digital I/O pin 11; also used for DVI hot plug detect through the DVI port/jumper. | |
| D10GPIO10 | GPIO | Digital I/O pin 10; also used for DVI CEC through the DVI port/jumper. | |
| GPIO19D0N | GPIO, Unknown | HSTX peripheral pin, connected to DVI TMDS channel 0 negative. | |
| GPIO18D0P | GPIO, Unknown | HSTX peripheral pin, connected to DVI TMDS channel 0 positive. | |
| GPIO17D1N | GPIO, Unknown | HSTX peripheral pin, connected to DVI TMDS channel 1 negative. | |
| GPIO16D1P | GPIO, Unknown | HSTX peripheral pin, connected to DVI TMDS channel 1 positive. | |
| GPIO15CKN | GPIO, Unknown | HSTX peripheral pin, connected to DVI TMDS clock negative. | |
| GPIO14CKP | GPIO, Unknown | HSTX peripheral pin, connected to DVI TMDS clock positive. | |
| GPIO13D2N | GPIO, Unknown | HSTX peripheral pin, connected to DVI TMDS channel 2 negative. | |
| GPIO12D2P | GPIO, Unknown | HSTX peripheral pin, connected to DVI TMDS channel 2 positive. | |
| DVI port | Unknown | DVI output port carrying TMDS clock/data, hot plug detect, and CEC as documented on the Adafruit pinouts page. | |
| CEC jumper | Control | Cuttable jumper that disconnects the CEC signal from GPIO10. | |
| HPD jumper | Control | Cuttable jumper that disconnects hot plug detect from GPIO11. |
Output from the 3.3V regulator on the 22-pin port.
Common ground for power and logic on the 22-pin port.
Main I2C1 clock pin on the 22-pin port.
Main I2C1 data pin on the 22-pin port.
Digital I/O pin 11; also used for DVI hot plug detect through the DVI port/jumper.
Digital I/O pin 10; also used for DVI CEC through the DVI port/jumper.
HSTX peripheral pin, connected to DVI TMDS channel 0 negative.
HSTX peripheral pin, connected to DVI TMDS channel 0 positive.
HSTX peripheral pin, connected to DVI TMDS channel 1 negative.
HSTX peripheral pin, connected to DVI TMDS channel 1 positive.
HSTX peripheral pin, connected to DVI TMDS clock negative.
HSTX peripheral pin, connected to DVI TMDS clock positive.
HSTX peripheral pin, connected to DVI TMDS channel 2 negative.
HSTX peripheral pin, connected to DVI TMDS channel 2 positive.
DVI output port carrying TMDS clock/data, hot plug detect, and CEC as documented on the Adafruit pinouts page.
Cuttable jumper that disconnects the CEC signal from GPIO10.
Cuttable jumper that disconnects hot plug detect from GPIO11.
USB · 3.3 V
Confirm the data interface matches your host board.
Module pins: 3.3V, GND, SCL/GPIO3, SDA/GPIO2. Schematik maps them to your board in the app.
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