19 open source boards using the PCA9685PW
Real designs built with the PCA9685PW, 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.
- schematic only · 87 partsESP32
Antenny
RedBalloonShenanigans
87 partsNo license164 
1 Distribution Board
basicallysource
130 × 120 mm179 parts2LNo license38
Microchip SAMPurpledrop
uwmisl
161 × 100 mm253 parts4LMIT19
Eve pi
vishhvaan
103.5 × 90.6 mm102 parts4LMIT15
Robocar pinky
arkorobotics
81.3 × 52.8 mm83 parts4LNo license12
TapeLooper MainBoard
TheSlowGrowth
119.6 × 106.5 mm243 parts2LCustom license10
RPi-HAT-RGBW-LED-Controller
mikelawrence
65 × 56 mm54 parts2LMIT9
OpenJetECU
yuchao86
100.1 × 60.2 mm187 parts4LGPL-3.08
PaneledKit
williamthayer
93.6 × 94.4 mm226 parts2LNo license1
WildWillyR5Hardware
dkjonas
94.4 × 92.2 mm52 parts4LNo license1
Pi PCB Hat
CabrilloRoboticsClub
121.4 × 102.1 mm117 parts4LMIT0
FlySensei Stack RPi
denjos007
90 × 65 mm104 parts4LNo license0
ESP32RC14
AgOpenGPS-Official
145 × 108 mm88 parts2LGPL-3.020
PaneledKitDNP Variant 4-15
93.6 × 94.4 mm197 parts2LNo license1
Lumenier Carrier Board
50 × 64 mm7 parts2LMIT0
Microchip SAMMini biped robot
mrcha033
50 × 30 mm32 parts2LApache-2.02
Daisy Board Servo
29.8 × 46.2 mm56 parts2LNo license1
USB LED Daughterboard 0-2
Govish
63.5 × 25.4 mm61 parts2LMIT0
Fusion USB Daughter Board
72.5 × 33.3 mm28 parts2LMIT0
The PCA9685PW in open source designs
The gallery holds 19 open source boards using the PCA9685PW from 15 GitHub repositories; a typical one measures about 93.6 × 77.8 mm and carries around 88 components.
61% are two-layer designs, the rest use four layers or more, and 53% carry an open source license.
The most starred is Antenny by RedBalloonShenanigans.
Parts used alongside the PCA9685PW
Microcontrollers on boards using the PCA9685PW
What boards using the PCA9685PW are built for
PCA9685PW: common questions
Where can I find a PCA9685PW reference design?
Each of the 19 boards on this page is a real design using the PCA9685PW. 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 PCA9685PW use?
Most are built on ESP32 (2) and Microchip SAM (2).
How big is a typical board using the PCA9685PW?
The median is 93.6 × 77.8 mm, and 61% are two-layer designs.
What is the most popular open source board using the PCA9685PW?
By GitHub stars, Antenny by RedBalloonShenanigans, with 164 stars.
Can I simulate one of these boards using the PCA9685PW 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.