4 open source boards using the BQ21040DBV
Real designs built with the BQ21040DBV, 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.
RP2040/RP2350Nyx
Shadow220108
21 × 51 mm45 parts2LNo license1
RP2040/RP2350AT-HUB-Recharged
Rehabilitation-Innovation
100 × 55 mm95 parts4LNo license0
ESP32Wilco C3 git
A-Bertelsen
38 × 21 mm43 parts4LNo license0
ESP32Wilco C3 panel rev B
90 × 163 mm43 parts4LNo license0
The BQ21040DBV in open source designs
The gallery holds 4 open source boards using the BQ21040DBV from 3 GitHub repositories; a typical one measures about 64 × 53 mm and carries around 44 components.
75% use four copper layers or more, and 0% carry an open source license.
The most starred is Nyx by Shadow220108.
Microcontrollers on boards using the BQ21040DBV
What boards using the BQ21040DBV are built for
BQ21040DBV: common questions
Where can I find a BQ21040DBV reference design?
Each of the 4 boards on this page is a real design using the BQ21040DBV. 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 BQ21040DBV use?
Most are built on ESP32 (2) and RP2040/RP2350 (2).
How big is a typical board using the BQ21040DBV?
The median is 64 × 53 mm, and 25% are two-layer designs.
What is the most popular open source board using the BQ21040DBV?
By GitHub stars, Nyx by Shadow220108, with 1 stars.
Can I simulate one of these boards using the BQ21040DBV 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.