HardLabs

OpenSpool-AMS

RobThree·OpenSpool-AMS·pcb/openspool-ams.kicad_pcb

OpenSpool-AMS PCB layout, top view — open source ESP32 board by RobThree

About the OpenSpool-AMS PCB

OpenSpool-AMS is an open source ESP32 PCB design by RobThree, published on GitHub under the MIT license. It is a 2-layer board measuring 30.5 × 58.4 mm, with 9 components from 9 distinct parts.

Its main chip is the ESP32-L, from the ESP32 family.

From the project

A PCB to connect up to 5 PN532 NFC reader modules to an ESP32 S3 WROOM devkit board

This repository contains the PCB design for the OpenSpool project. This PCB can connect up to 5 PN532 NFC reader modules to an ESP32 S3 WROOM devkit board.

You can use this board on top, or on the bottom of your ESP32. Depending on which side you solder the female (or male) sockets (or pinheaders) you can then use the other side to connect your NFC readers to. The pins are in the same order as the pins on the PN532 board so you should be able to use dupont wires 6-wide (without tearing the wires apart). The wires should then go straight from this board to the PN532 module.

OpenSpool-AMS, from the project README
From the project README

OpenSpool-AMS bill of materials (BOM)

9 components, 9 distinct parts.

QtyPartRefs
1
GND
J1
1
ESP32-L
J2
1
ESP32-R
J3
1
5V
J4
1
MOSI
J5
1
CS
J6
1
3V3
J7
1
SCK
J8
1
MISO
J9

OpenSpool-AMS design files

The KiCad project lives in the RobThree/OpenSpool-AMS repository on GitHub; these links point at the commit this page was built from.

OpenSpool-AMS: common questions

What microcontroller does the OpenSpool-AMS use?

The OpenSpool-AMS is built around the ESP32-L, from the ESP32 family.

How big is the OpenSpool-AMS PCB?

The OpenSpool-AMS measures 30.5 × 58.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the OpenSpool-AMS?

9 components, from 9 distinct parts. The full bill of materials is listed on this page.

Where can I download the OpenSpool-AMS design files?

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

Can I use the OpenSpool-AMS design in my own project?

Yes, under the terms of its MIT license, which RobThree chose for the repository.

Can I test firmware for the OpenSpool-AMS 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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