Pico32

arnytrty·pico32·hardware/pico32_v2/Pico32.kicad_pcb

About the Pico32 PCB

Pico32 is an open source RP2040/RP2350 PCB design by arnytrty, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 13 × 13 mm, with 8 components from 6 distinct parts.

Its main chip is the ESP32-PICO-D4, from the RP2040/RP2350 family. Other key parts include the TPS79333-EP. By type, the board carries 4 capacitors, 2 ICs, 1 antenna and 1 resistor.

From the project

small open source board based on ESP32-PICO-D4

Pico32 is small (13mm*13mm) open source board based on ESP32-PICO-D4. It was designed for full use of the SoC package from Espressif & make it more accessible so you can simply handsolder without any special tools. It has a 4MB embedded flash (esp32-pico-d4 datasheet).

This board does not have USB to UART converter, you will need an external one to program it (they are pretty cheap). For a programming guide, check out FLASHING.md.

Pico32, from the project README — From the project README

Main components on the Pico32

TPS79333-EP ESP32-PICO-D4

Pico32 bill of materials (BOM)

8 components, 6 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	TPS79333-EP	SOT-23-5	U1
1	ESP32-PICO-D4	QFN-48-1EP_7x7mm_P0.5mm_EP5.3x5.3mm	U2
1	Antenna	AN9520-245	AE1
3	1uF	C_0402_1005Metric	C1, C2, C4
1	10nF	C_0402_1005Metric	C3
1	1k	R_0402_1005Metric	R1

Pico32 design files

The KiCad project lives in the arnytrty/pico32 repository on GitHub; these links point at the commit this page was built from.

Pico32: common questions

What microcontroller does the Pico32 use?

The Pico32 is built around the ESP32-PICO-D4, from the RP2040/RP2350 family.

How big is the Pico32 PCB?

The Pico32 measures 13 × 13 mm, has 2 copper layers and is 0.8 mm thick.

How many components are on the Pico32?

8 components, from 6 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Pico32 design files?

From the arnytrty/pico32 repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Pico32 design in my own project?

Yes, under the terms of its GPL-3.0 license, which arnytrty chose for the repository.

Can I test firmware for the Pico32 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.