The RP2040-Zero is a Pico-compatible board built on the RP2040 dual-core chip. It runs up to 133MHz with 264KB SRAM and 2MB flash. It offers 29 GPIO, USB-C, and castellated edges for custom peripherals. The 1-pack costs $4.79, and the 3-pack costs $14.99.
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What is the RP2040-Zero?
The board uses the RP2040 dual-core chip at up to 133MHz.
It has 264KB SRAM and 2MB flash with a USB-C port.
It offers 29 GPIO, with 20 via pin headers.
What do the castellated edges buy you?
Castellated edges let the board solder flat onto a carrier PCB.
The chip, flash, and USB-C come with the module.
The board suits custom peripherals with 2MB flash on the module.
Which firmware: SDK or Python?
The Pico SDK covers C and C++ projects with full chip control.
MicroPython and CircuitPython cover Python projects with fast iteration.
All 3 frameworks run on the 133MHz dual-core chip.
What about the pin headers?
Pin headers are included but unsoldered with each board.
Solder headers for breadboard use, or use the castellated edges instead.
The 3-pack ships the same board and header set in each pack.
What did we check on the bench?
We matched the 133MHz clock, 264KB SRAM, and 2MB flash to the listing.
We matched the 29 GPIO and the castellated edges to the listing.
We matched the prices to the live store prices on November 12, 2026.
Quick comparison
| Pack | Boards | Price |
|---|---|---|
| 1-pack | 1 | $4.79 |
| 3-pack | 3 | $14.99 |
Steps
- Pick the 1-pack or the 3-pack.
- Solder the headers or plan a carrier board.
- Pick the SDK, MicroPython, or CircuitPython.
- Connect the board over USB-C and flash the firmware.
- Test the GPIO with a blink sketch.
Frequently asked questions
What does Pico-compatible mean here?
The board uses the RP2040 chip, so the Pico SDK, MicroPython, and CircuitPython all work.
Are the pin headers soldered on?
No. Pin headers are included but unsoldered.
Should I buy the 1-pack or the 3-pack?
The 1-pack suits one build. The 3-pack suits builds that need more than one board.
What are castellated edges for?
Castellated edges let the board solder flat onto another PCB as a module.
Parts used
RP2040-Zero Microcontroller Board, Pico-Compatible, USB-C, 2MB Flash, 1-Pack / 3-Pack, $4.79
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Browse all the guides on the Quality RC Parts Drone Guides hub, or start at the Quality RC Parts store.
Sources
Quality RC Parts stocks parts in New York, USA and ships in-stock orders in 1-2 business days.
Last updated: 2026-11-12.