2 open source boards using the SX1281
Real designs built with the SX1281, 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/RP2350Dual radio
AnyLeaf
37.7 × 37.7 mm50 parts4LMIT63
ESP8266Single radio
37.7 × 37.7 mm43 parts4LMIT63
The SX1281 in open source designs
The gallery holds 2 open source boards using the SX1281 from 1 GitHub repository; a typical one measures about 37.7 × 37.7 mm and carries around 47 components.
100% use four copper layers or more, and 100% carry an open source license.
The most starred is Dual radio pcb by AnyLeaf.
Microcontrollers on boards using the SX1281
What boards using the SX1281 are built for
SX1281: common questions
Where can I find a SX1281 reference design?
Each of the 2 boards on this page is a real design using the SX1281. 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 SX1281 use?
Most are built on ESP8266 (1) and RP2040/RP2350 (1).
How big is a typical board using the SX1281?
The median is 37.7 × 37.7 mm, and 0% are two-layer designs.
What is the most popular open source board using the SX1281?
By GitHub stars, Dual radio pcb by AnyLeaf, with 63 stars.
Can I simulate one of these boards using the SX1281 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.