3 open source boards using the PCA9685BS_118
Real designs built with the PCA9685BS_118, 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.
KevinbotV3
meowmeowahr
156.5 × 85.4 mm152 parts4LCERN-OHL-S-2.07- schematic only · 139 partsESP32
GrowHub
Ajakovski
139 partsMIT2 
STM32Nixie clock
moro696
203.1 × 155.8 mm143 parts4LGPL-3.01
The PCA9685BS_118 in open source designs
The gallery holds 3 open source boards using the PCA9685BS_118 from 3 GitHub repositories; a typical one measures about 179.8 × 120.6 mm and carries around 143 components.
100% use four copper layers or more, and 100% carry an open source license.
The most starred is KevinbotV3-KiCAD by meowmeowahr.
What boards using the PCA9685BS_118 are built for
PCA9685BS_118: common questions
Where can I find a PCA9685BS_118 reference design?
Each of the 3 boards on this page is a real design using the PCA9685BS_118. 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 PCA9685BS_118 use?
Most are built on ESP32 (1) and STM32 (1).
How big is a typical board using the PCA9685BS_118?
The median is 179.8 × 120.6 mm, and 0% are two-layer designs.
What is the most popular open source board using the PCA9685BS_118?
By GitHub stars, KevinbotV3-KiCAD by meowmeowahr, with 7 stars.
Can I simulate one of these boards using the PCA9685BS_118 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.