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Env Open Pico

Envious-Data·EnvOpenPico·RP2350/EnvOpenPico2350/EnvOpenPico2350.kicad_pcb

Env Open Pico PCB layout, top view — open source RP2040/RP2350 board by Envious-Data
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About the Env Open Pico PCB

Env Open Pico is an open source RP2040/RP2350 PCB design by Envious-Data, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 21 × 51 mm, with 55 components from 33 distinct parts.

Its main chip is the RP2350A, from the RP2040/RP2350 family. Other key parts include the SOT-23-5 5.5V 3.3V 500mA. By type, the board carries 20 capacitors, 12 resistors, 5 connectors, 3 test points, 2 ICs and 2 LEDs.

From the project

An open source RP2040 MCU Board Family

Ive retained the USB TP pads and also TP6 which is bootsel in their original positions. a couple of the GPIOs cant retain their original function since Im not using a RT6150B-33GQW so GPIO23 has an optional mosfet for a default on LED instead of controlling the mode for the buck-boost IC.

Ive also got nothing connected on GPIO29 where as the pico has a mosfet to prevent leakage current, im not sure what the use of this GPIO is but if its a wanted feature I can try to add it back.

Env Open Pico, from the project README
From the project README

Main components on the Env Open Pico

SOT-23-5 5.5V 3.3V 500mARP2350A

Env Open Pico bill of materials (BOM)

55 components, 33 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
SOT-23-5 5.5V 3.3V 500mA
U1
1
RP2350A
U3
1
SI2301B
Q1
1
3225_4P 12MHz
Y1
1
USB_C_RECEPTACLE_USB2.0
USB_C_Receptacle_USB2.0
J1
1
TSA343G00-250J2
J2
2
2.54mm header 01x20
J3, J4
1
CONN_01X03_MALE
Conn_01x03_Male
J5
1
10uf 0402
CBP1
1
0805L050WR
F1
1
W25Q16JVUXIQ
FLASH1
1
1K 0402
GPIO24_RESISTOR1
1
470 0402
GPIO25_RESISTOR1
1
TSA343G00-250J2
RSW1
3
TestPoint
TP1, TP2, TP3
1
GP23 LED_0402
GP23_LED1
1
LED_0402
GPIO25_LED1
1
1N5917W
D1
1
FerriteBead 0402
FB1
1
3.3uH 0805
L1
Show 13 more
QtyPartRefs
3
10uf 0402
C1, C4, C17
2
22pf 0402
C2, C19
4
4.7uF 0402
C3, C6, C7, C9
10
100nf 0402
C5, C8, C10, C11, C12, C13, C14, C15 +2
1
0.1uf 0402
C101
2
1K 0402
R1, R11
2
10K 0402
R2, R103
2
27ohm 0402
R3, R4
2
5.1K 0402
R5, R6
1
100K 0402
R7
1
33ohm 0402
R8
1
5.6K 0402
R101
1
220 0402
R102

Env Open Pico design files

The KiCad project lives in the Envious-Data/EnvOpenPico repository on GitHub; these links point at the commit this page was built from.

Env Open Pico: common questions

What microcontroller does the Env Open Pico use?

The Env Open Pico is built around the RP2350A, from the RP2040/RP2350 family.

How big is the Env Open Pico PCB?

The Env Open Pico measures 21 × 51 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Env Open Pico?

55 components, from 33 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 Env Open Pico design files?

From the Envious-Data/EnvOpenPico repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Env Open Pico design in my own project?

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

Can I test firmware for the Env Open Pico 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.

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