HardLabs

EnvOpenAudio

Envious-Data·EnvOpenAudio·KiCad/EnvOpenAudio-RP2350/EnvOpenAudio.kicad_pcb

EnvOpenAudio PCB layout, top view — open source RP2040/RP2350 board by Envious-Data

About the EnvOpenAudio PCB

EnvOpenAudio 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 21.3 × 68.7 mm, with 62 components from 30 distinct parts.

Its main chip is the RP2350_60QFN, from the RP2040/RP2350 family. Other key parts include the W25Q16JVUXIQ, TPS63001DRCR, TLV75518PDBV and TLV320AIC3100. By type, the board carries 36 capacitors, 13 resistors, 5 ICs, 3 connectors, 2 switches and 2 inductors.

It belongs with the audio designs in this gallery.

From the project

An open source headphone/PC speaker project utilizing the RP2040, UDA1334A and TPA2016

These board schematics are from adafruit, Ive imported them into KiCad and swapped the footprints to KiCad version, I will be attempting to make these boards smaller as well as removing some stuff I wont use but the good thing about this is if you want you can build this project out of such parts you can buy from adafruit or equivilent shops minus the 3d printed housings.

Main components on the EnvOpenAudio

W25Q16JVUXIQTPS63001DRCRTLV75518PDBVRP2350_60QFNTLV320AIC3100

EnvOpenAudio bill of materials (BOM)

62 components, 30 distinct parts.

QtyPartRefs
1
W25Q16JVUXIQ
U1
1
TPS63001DRCR
U2
1
TLV75518PDBV
U3
1
RP2350_60QFN
U4
1
TLV320AIC3100
U5
1
ABM8-272-T3
Y1
1
USB_C_Receptacle_USB2.0
J1
1
SM03B-SRSS-TB
J2
1
Conn_01x10
J3
2
B3U-1000
SW1, SW2
1
MPL2016S2R2NHT
L1
1
MPL2012S3R3MHT
L2
2
0.1uF 0402
C1, C6
2
15pf 0402
C2, C3
14
100nf 0402
C4, C11, C15, C17, C18, C19, C20, C21 +6
9
10uF 0402
C5, C9, C10, C12, C16, C27, C28, C30 +1
2
4.7uf 0402
C7, C8
2
4.7uf 0402
C13, C14
1
10uf 0805
C24
2
47uF 0805
C35, C36
Show 10 more
QtyPartRefs
2
1uF 0402
C39, C40
1
220 0402
R1
1
0r 0402
R3
2
5.1K 0402
R4, R5
1
100ohm 0402
R7
3
1k 4020
R8, R9, R11
1
33r 0402
R10
1
100K 0402
R12
2
27r 0402
R13, R14
1
22K 0402
R15

EnvOpenAudio design files

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

EnvOpenAudio: common questions

What microcontroller does the EnvOpenAudio use?

The EnvOpenAudio is built around the RP2350_60QFN, from the RP2040/RP2350 family.

How big is the EnvOpenAudio PCB?

The EnvOpenAudio measures 21.3 × 68.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the EnvOpenAudio?

62 components, from 30 distinct parts. The full bill of materials is listed on this page.

Where can I download the EnvOpenAudio design files?

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

Can I use the EnvOpenAudio 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 EnvOpenAudio 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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