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
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...
PCB is used to control 3 typical CPU fans with mounted high-power LED chips according to temperature and tach sensors
Relays are used to power-off LED drivers in case of fan failure or overtemperature condition
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)
This project presents the implementation of a water meter based on ST microcontroller STM32F103. This project allows you to take into account the resources used and transfer data to the user's phone or website via the GPRS or Bluetooth channel. It is also possible to implement Bluetooth data exchange between the device and the user's smartphone and using the LoRa network for integration into the s...
**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.*