printf() function with SMT32 HAL and redirect LOG() calls to it.
Reverse engineer Cubii elliptic bike BLE protocol
After the STM32L151, I am now designing a board for STM32L052. Following are some notes about ST application notes I read to design an board.
What can you do on a rainy evening when you go to your hackerspace?
Take a NoteRF V2 PCB, a
GPS, a battery, and you can make a LoRaWAN GPS tracker!
I finally released the design files of my 3D printed tricopter. Even if the code is not so cleaned, full customization can be done thanks to OpenSCAD. This project was a way to try OpenSCAD for such design instead of traditional CAD like Solidworks and it works really well, it just took me some time to find a way to organize the code. But it allows displaying some warnings if input data does not match or automatically computes the length of carbon rods used for the arms.
The new version of my NoteRF project, its features are:
- New radio footprint for RFM69 (FSK/OOK) or RFM95: LoRaWAN !
- Mosfet to switch off sensors or control actuators
- Edge connector for external antenna
- Mounting slot for 3 mm screws
- Fits on a breadboard
- 3.3V regulator