STM32F103C8T6 Blue Pill
by Generic
SKU: PSA-CMP-BLUEPILL
No reviews yetTypical India street price
₹150–₹350
32-bit ARM Cortex-M3 board — Arduino STM32 or STM32Cube.
Interface: GPIO, USB, UART, I2C, SPI, CAN, ADC
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Concept
More CPU and peripherals than AVR, still hobby-priced in India.
A little theory
72 MHz Cortex-M3, 64/128 KB flash (clones often fake 128 as 64). 3.3 V I/O, 5 V-tolerant many pins. In the classroom, treat STM32F103C8T6 Blue Pill as a advanced part using GPIO, USB, UART, I2C, SPI, CAN, ADC. Typical India street price is about ₹150–₹350. Always verify voltage and pin labels on your exact module — silk screens vary across clones. Start with a datasheet or trusted learn guide, power the part correctly, share GND with the MCU, and test with a simple blink/read sketch before building the full project. Measure voltages with a multimeter when something fails, and keep actuator current off the MCU regulator.
How it works in a project
ST-Link clone on SWD pins, or USB DFU after flashing a bootloader.
Classroom & project use
- Faster control loops
- USB gadgets
- CAN experiments
Buying in India
Precautions
- 5 V on 3.3 V pin kills it
- Clone USB pull-ups are flaky
Specifications
| MCU | STM32F103C8T6 |
| Core | Cortex-M3 72 MHz |
| Category | Microcontrollers |
| Difficulty | Advanced |
| Voltage | 3.3V / 5V pin |
| Interface | GPIO, USB, UART, I2C, SPI, CAN, ADC |
Pinout
VCC | GND | SCL | SDA (confirm address with I2C scanner)
