The Blue pill came to my radar whenever I was searching for a simple Arm Cortex M based development board for simple automation. The cost was also around Rs. 200 to 300 only but I used to think it might be under-powered as I assumed it to be a CORTEX M0 or M0+ controller.
It was recently when I was looking for a simple CORTEX controller to learn LibOpenCM3 that I found the bluepill to be more suited.
The Bluepill was very impressive in specs
- STM32F103C6T based on ARM 32bit CORTEX M3 Core
- 72Mhz max
- 64/128k Flash
- 20kb RAM
- Basic peripherals ( ADC SPI I2C etc)
- DMA - 7 Channels
- Timers - 7
- USB 2.0 (yes really)
- JTAG/SWD debug ( just 4 wires to debug )
- CAN 2.0
Detailed spec here.
The board does not have any other special chip like Acclelrormeter Gyro etc.
It does have a single LED conneted to one of the port pins.
The board out of the box contains a simple Blinky Program what blinks the LED on giving 5V power.
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