Expansion Card circuit based on RP2350 for Framework mainboards providing GPIO to the computer. Circuit is based on Expansion Card template and RP2350A Minimal board. Designed in KiCad.
| Label | Name | SPI | UART | I2C | ADC |
|---|---|---|---|---|---|
| 0 | GPIO0 | SPI0 RX | UART0 TX | I2C0 SDA | |
| 1 | GPIO1 | SPI0 CSn | UART0 RX | I2C0 SCL | |
| 2 | GPIO2 | SPI0 SCK | I2C1 SDA | ||
| 3 | GPIO3 | SPI0 TX | I2C1 SCL | ||
| 4 | GPIO4 | SPI0 RX | UART1 TX | I2C0 SDA | |
| 5 | GPIO5 | SPI0 CSn | UART1 RX | I2C0 SCL | |
| 6 | GPIO6 | SPI0 SCK | I2C1 SDA | ||
| 7 | GPIO7 | SPI0 TX | I2C1 SCL | ||
| VCC | 3.3v | ||||
| R | Reset |
| Label | Name | SPI | UART | I2C | ADC |
|---|---|---|---|---|---|
| 29 | GPIO29 | ADC3 | |||
| 28 | GPIO28 | ADC2 | |||
| 27 | GPIO27 | I2C1 SDL | ADC1 | ||
| G | Ground | ||||
| 13 | GPIO13 | SPI1 CSN | UART0 RX | I2C0 SCL | |
| 12 | GPIO12 | SPI1 RX | UART0 TX | I2C0 SDA | |
| 11 | GPIO11 | SPI1 TX | I2C1 SCL | ||
| 10 | GPIO10 | SPI1 SCK | I2C1 SDA | ||
| 9 | GPIO9 | SPI1 CSn | UART1 RX | I2C0 SCL | |
| B | Boot |
Designed by: Tan Siret Akıncı.
Schematics and footprint are licensed with CC BY 4.0.
Politecnico di Torino name used in this project is © 2025 Politecnico di Torino. The project is sponsored by © 2025 DeepComputing and © 2025 NextPCB.
The project has been certified by OSHWA as Open Source Hardware (UID: IT000024).
