HardLabs

Bench

Amir-Vered·Bench·hardware/kicad/Bench.kicad_pcb

Bench PCB layout, top view — open source ESP32 board by Amir-Vered

About the Bench PCB

Bench is an open source ESP32 PCB design by Amir-Vered, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 85 × 45 mm, with 36 components from 20 distinct parts.

Its main chip is the ESP32-S3-WROOM-1-N8R8, from the ESP32 family. Other key parts include the TLV62569DBVR, USBLC6-2SC6 and TPS2553DBV. By type, the board carries 17 resistors, 9 capacitors, 4 ICs, 3 connectors, 1 fuse and 1 diode.

It belongs with the iot & wireless designs in this gallery.

From the project

Wi-Fi upload dock for Arduino

TL;DR wires are annoying, let's put Bench in the middle of the Arduino workflow.

I love Arduino, it's perfect for prototyping your projects before making your PCBs. But, idk about you, the most annoying thing to me is the fact that the board is tied to my laptop. And it's not a graceful connection, no, these wires are some of the most stale twisted things you've ever used, especially the uni lab ones. This gets even worse when you're using a desktop computer. But what if we put a device in the middle?

Bench, from the project README
From the project README

Main components on the Bench

TLV62569DBVRESP32-S3-WROOM-1-N8R8USBLC6-2SC6TPS2553DBV

Bench bill of materials (BOM)

36 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TLV62569DBVR
U1
1
ESP32-S3-WROOM-1-N8R8
U2
1
USBLC6-2SC6
U3
1
TPS2553DBV
U4
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C
J1
1
J_ESP_PROG
J2
1
USB_A
J3
1
1A hold
F1
1
TSD05
D1
1
2.2UH
2.2uH
L1
4
10UF
10uF
C1, C3, C4, C6
4
0.1UF
0.1uF
C2, C5, C7, C9
1
120UF
120uF
C8
2
5.1K
5.1k
R1, R2
1
453K
453k
R3
3
100K
100k
R4, R5, R9
3
10K
10k
R6, R7, R10
1
59K
59k
R8
5
1k
R11, R12, R13, R14, R15
2
22R
R16, R17

Bench design files

The KiCad project lives in the Amir-Vered/Bench repository on GitHub; these links point at the commit this page was built from.

Bench: common questions

What microcontroller does the Bench use?

The Bench is built around the ESP32-S3-WROOM-1-N8R8, from the ESP32 family.

How big is the Bench PCB?

The Bench measures 85 × 45 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bench?

36 components, from 20 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 Bench design files?

From the Amir-Vered/Bench 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 Bench design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which Amir-Vered chose for the repository.

Can I test firmware for the Bench without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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