WeAct RP2350A_V20 may be the world’s cheapest Raspberry Pi RP2350 board around with a design similar to the official Raspberry Pi Pico 2, but featuring a black PCB, a Reset button, a USB-C port and offered with either 4MB or 16MB flash. WeAct is selling its RP2350 board for $3.47 (4MB) and $4.46 (16MB) respectively before shipping and potential taxes are taken into account.
WeAct RP2350A_V20 specifications:
- SoC – Raspberry Pi RP2350A
- CPU
- Dual-core Arm Cortex-M33 @ 150 MHz with Arm Trustzone, Secure boot OR
- Dual-core RISC-V Hazard3 @ 150 MHz
- Up to two cores can be used in any combination
- Memory – 520 KB on-chip SRAM
- Package – QFN-60
- CPU
- Storage – 4 MB or 16MB on-board QSPI flash
- USB – USB Type-C 1.1 host/device connector for power and programming
- Expansion – 2x 20-pin headers
- 26x GPIO
- 2x UART
- 2x SPI controllers
- 2x I2C controllers
- 16x PWM channels
- 3x ADC
- 3x PIO blocks, 12x PIO (Programmable IO) state machines
- Debugging – SWD debug interface
- Misc – Boot button, Reset button, PowerLED, user LED
- Power Supply – 1.8 to 5.5V DC
- Dimensions – 51 x 21 mm
As far as I can tell it’s just a Raspberry Pi Pico 2 with the same dimensions and pinout (see image below), but a few improvements with the option of getting 16MB of flash, a USB-C port instead of a micro USB port, and a Reset button. It also ships with unsolder headers for the GPIO headers and SWD port, and it might be cheaper than the original depending on where you live. The four mounting holes found on the Pico 2 are the only thing missing on the WeAct board.
I’ve just realized the WeAct RP2350A_V20 is not actually the cheapest RP2350 board around, because the company also made the RP2350A_V10 going for $3.18 before shipping or $5.46 with 16MB and free shipping. I can’t figure out why it’s a few cents cheaper, as it seems to add a couple of LEDs and a user button. [Update: as mentioned in the comments the power circuitry is different and Vin supports 3.6 to 6.5V in V10 instead of 1.8 to 5.5V in V20]
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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Seems like the power managment on the RP2350A_V20 is quite more complete on this board compared to the one on RP2350A_V10. This could be a clue for price difference between the two iterations
You’re right. The input voltage for V10 is also different: 3.6 to 6.5V.