9 open source boards using the BQ25504
Real designs built with the BQ25504, 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.
Nordic nRFSolar nRF.kicad pro
PocketConcepts
35.9 × 35.5 mm53 parts2LNo license341
Nordic nRFCweep
cjshearer
108 × 94.7 mm53 parts2LMIT12
BQStripped
bootchk
9 × 9 mm18 parts2LNo license6
LowLoRa
SorenGilkeyJohnson
23.4 × 25.4 mm64 parts4LCERN-OHL-S-2.03
AVR/ArduinoOmamori
felixmark
25 × 35 mm34 parts2LNo license2
ESP32Tux v02
tux-friend
25 × 25 mm60 parts2LGPL-3.018
SolarPowerSupply
Octanis3
59.9 × 34.5 mm49 parts2LMIT2
Bq25504
ojousima
35 × 35 mm27 parts2LCustom license1
Nordic nRFTechno Buffalo
OklahomaOpenSourceHardware
88.4 × 62.5 mm60 parts2LNo license3
The BQ25504 in open source designs
The gallery holds 9 open source boards using the BQ25504 from 9 GitHub repositories; a typical one measures about 35 × 35 mm and carries around 53 components.
89% are two-layer designs, the rest use four layers or more, and 44% carry an open source license.
The most starred is Solar nRF.kicad pro by PocketConcepts.
Microcontrollers on boards using the BQ25504
What boards using the BQ25504 are built for
BQ25504: common questions
Where can I find a BQ25504 reference design?
Each of the 9 boards on this page is a real design using the BQ25504. 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 BQ25504 use?
Most are built on Nordic nRF (3), AVR/Arduino (1) and ESP32 (1).
How big is a typical board using the BQ25504?
The median is 35 × 35 mm, and 89% are two-layer designs.
What is the most popular open source board using the BQ25504?
By GitHub stars, Solar nRF.kicad pro by PocketConcepts, with 341 stars.
Can I simulate one of these boards using the BQ25504 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.