2 open source boards using the BL1551B
Real designs built with the BL1551B, 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.
ESP32PCBA-KNOT
intechstudio
56 × 60 mm110 parts4LGPL-3.057
ESP8266Lokkkarten Emulator
GBert
100 × 54 mm50 parts2LNo license36
The BL1551B in open source designs
The gallery holds 2 open source boards using the BL1551B from 2 GitHub repositories; a typical one measures about 78 × 57 mm and carries around 80 components.
50% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.
The most starred is PCBA-KNOT by intechstudio.
What boards using the BL1551B are built for
BL1551B: common questions
Where can I find a BL1551B reference design?
Each of the 2 boards on this page is a real design using the BL1551B. 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 BL1551B use?
Most are built on ESP32 (1) and ESP8266 (1).
How big is a typical board using the BL1551B?
The median is 78 × 57 mm, and 50% are two-layer designs.
What is the most popular open source board using the BL1551B?
By GitHub stars, PCBA-KNOT by intechstudio, with 57 stars.
Can I simulate one of these boards using the BL1551B 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.