2 open source boards using the MFRC522
Real designs built with the MFRC522, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
ESP32Bailabox main board v2
dr-harvey
168.6 × 70 mm74 parts2LCC-BY-SA-4.026
ESP32PWR BRD by drharvey
59.8 × 20 mm22 parts2LCC-BY-SA-4.026
The MFRC522 in open source designs
The gallery holds 2 open source boards using the MFRC522 from 1 GitHub repository; a typical one measures about 114.2 × 45 mm and carries around 48 components.
100% are two-layer designs, the rest use four layers or more, and 100% carry an open source license.
The most starred is Bailabox main board v2 by dr-harvey.
Microcontrollers on boards using the MFRC522
What boards using the MFRC522 are built for
MFRC522: common questions
Where can I find a MFRC522 reference design?
Each of the 2 boards on this page is a real design using the MFRC522. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
Which microcontrollers do boards using the MFRC522 use?
Most are built on ESP32 (2).
How big is a typical board using the MFRC522?
The median is 114.2 × 45 mm, and 100% are two-layer designs.
What is the most popular open source board using the MFRC522?
By GitHub stars, Bailabox main board v2 by dr-harvey, with 26 stars.
Can I simulate one of these boards using the MFRC522 before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.