Board for STM32F103C8. Modified Power and Diode for USB and pullup for USB.
![Generic STM32F103 PINOUT DIAGRAM](https://solovjov.net/reblag.dk/The-Generic-STM32F103-Pinout-Diagram.jpg)
- Low dropout 5V USB protection from external power supply
- Compact form-factor
- Pain-in-the-ass 0402 capacitors
In case of failure (or low voltage on 5V pin) at first check following:
- AO3401A FET
I'm trying to reinvent construction set with nuts and bolts. This is electronic parts. Metal and plastic parts can be found [here](https://github.com/shadowlamer/bcse).
Soft starter for Angle grinder, Miter saw and other funny jumping during power on universal motor equipment.
Also it saves plastic gears applying less force during slow starting.
TRIAC used to soft start motor from 30% to 100% power, then relay used to feed full mains sine wave to motor. Also it supports soft stop with start/stop buttons.
Do not apply load to motor before relay latching to pre...
Interface a Raspberry Pi 3.5 inch TFT LCD to an STM32F103C8T6(blue pill). This LCD with resistive touch screen uses SPI to connect to the STM32. Can also be used to connect to Arduino Pro Mini by adjusting relevant SPI pins.
Ultra-compact 25.4mm x 12.7mm board for DIY prototyping.
- STM32F030F4P6 or GD32F130F4P6 MCU
- SOT23 or SOT223 LDO
- VDDA out
If you dont need ADC:
- skip placement CM8, CM7, FB
- short both FB pads
- PA14 SWCLK
- PA13 SWDIO
- PA4 LED
**Port breakout board for the generic STM32 'Blue Pill' development boards**
*May also support Red/Black Pill boards where pinout/size is compatible with the Blue Pill board.*