2 open source boards using the B0303S-1WR3
Real designs built with the B0303S-1WR3, 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.
ESP32Smart-Meter
hupfer21
78 × 90 mm129 parts2LNo license1
ESP32PLC4UNI
0sirys
102.4 × 83.1 mm207 parts4LMIT0
The B0303S-1WR3 in open source designs
The gallery holds 2 open source boards using the B0303S-1WR3 from 2 GitHub repositories; a typical one measures about 90.2 × 86.5 mm and carries around 168 components.
50% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.
The most starred is Smart-Meter by hupfer21.
Microcontrollers on boards using the B0303S-1WR3
B0303S-1WR3: common questions
Where can I find a B0303S-1WR3 reference design?
Each of the 2 boards on this page is a real design using the B0303S-1WR3. 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 B0303S-1WR3 use?
Most are built on ESP32 (2).
How big is a typical board using the B0303S-1WR3?
The median is 90.2 × 86.5 mm, and 50% are two-layer designs.
What is the most popular open source board using the B0303S-1WR3?
By GitHub stars, Smart-Meter by hupfer21, with 1 stars.
Can I simulate one of these boards using the B0303S-1WR3 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.