A hand-solderable RP2350A module with 16MB FLASH, LiPo charging, reset/boot buttons, and all GPIO broken out.

The Stamp was created to allow you to use the Raspberry Pi RP2350A in your designs without having to solder small-pitch QFN chips or worry about lots of external circuitry.

All you need to get you started is a 5V supply or a LiPo battery. The Stamp will take care of the charging and switching the power sources.

The castellated edges with 2mm pitch can be hand-soldered directly to a Carrier board, used with pin headers for more flexibility, or connected without soldering using , which are spring connectors designed for modules with castellated edges. You can find footprints for many PCB programs including KiCad, Eagle CAD, and EasyEDA .

Features

At only 1 by 1 inch, the Stamp packs a lot of features:

• 16MB of FLASH
• 500mA 3.3V LDO
• All 30 GPIOs broken out
• LiPo supply and charging circuit (with charging LED)
• USB broken out
• SWD broken out
• Reset Button
• Bootsel Button
• 12MHz crystal

and of course, everything that comes with the Raspberry Pi RP2350 itself:

• Dual core ARM Cortex-M33 or Hazard3 @ 150MHz
• 520kB SRAM
• 2 UARTs
• 2 SPIs
• 2 I2Cs
• 24 PWM channels
• 12 PIO state machines
• 1 HSTX peripheral
• USB with Host and Device support

The RP2350 comes with a pre-programmed ROM UF2 Bootloader, by pulling the BOOTSEL pin low and resetting, or by double-pressing the RESET button (if the FW supports it), you can upload new firmware using the USB disk drive.

Links to code and documentation