1 open source board using the SIM900
Real designs built with the SIM900, 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.
q3kThe SIM900 in open source designs
The gallery holds 1 open source boards using the SIM900 from 1 GitHub repository; a typical one measures about 121.9 × 49.5 mm and carries around 88 components.
100% are two-layer designs, the rest use four layers or more, and 100% carry an open source license.
The most starred is Internet of booze by q3k.
Microcontrollers on boards using the SIM900
SIM900: common questions
Where can I find a SIM900 reference design?
Each of the 1 boards on this page is a real design using the SIM900. 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 SIM900 use?
Most are built on STM32 (1).
How big is a typical board using the SIM900?
The median is 121.9 × 49.5 mm, and 100% are two-layer designs.
What is the most popular open source board using the SIM900?
By GitHub stars, Internet of booze by q3k, with 3 stars.
Can I simulate one of these boards using the SIM900 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.