7 open source boards using the MAX3232
Real designs built with the MAX3232, 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.
ESP32SmartSPin2k
doudar
57.2 × 60.3 mm79 parts2LGPL-2.0283
RP2040/RP2350RaspberryPi-Pico-Motor-Expansion-Board
eamars
91.7 × 66.8 mm63 parts4LGPL-3.018
ESP32SmartSPin2k
189.5 × 204.9 mm79 parts2LGPL-2.0283
STM32Many485
eddyem
80 × 84 mm107 parts2LNo license206
Rs232-dual adapter
DangerousPrototypes
40 × 51 mm16 parts2LMIT123
STM32Relay Module
Tuskar-Marine
320 × 80 mm134 parts4LNo license6
STM32Encoder
78 × 81 mm53 parts2LNo license206
The MAX3232 in open source designs
The gallery holds 7 open source boards using the MAX3232 from 5 GitHub repositories; a typical one measures about 80 × 80 mm and carries around 79 components.
71% are two-layer designs, the rest use four layers or more, and 57% carry an open source license.
The most starred is SmartSPin2k PCB by doudar.
Microcontrollers on boards using the MAX3232
What boards using the MAX3232 are built for
MAX3232: common questions
Where can I find a MAX3232 reference design?
Each of the 7 boards on this page is a real design using the MAX3232. 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 MAX3232 use?
Most are built on STM32 (3), ESP32 (2) and RP2040/RP2350 (1).
How big is a typical board using the MAX3232?
The median is 80 × 80 mm, and 71% are two-layer designs.
What is the most popular open source board using the MAX3232?
By GitHub stars, SmartSPin2k PCB by doudar, with 283 stars.
Can I simulate one of these boards using the MAX3232 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.