Features
1. On-board SWD interface, and it can be programmed with ST-LINK V2.
2. On-board test indicator LED, and the beginners can program to control it.
3. On-board 100ma 3.3V Regulator.
4. All GPIO are led out and the names of the pins are marked。
5. Microcontroller: STM32F103C8T6.
6. Burning times: 10k cycles
7. Operating voltage: 3.3 V.
8. IO logic voltage: 3.3V
9. Digital I/O Pins: 37.
10. Analog Input Pins: 10 (12bits).
11. Flash Memory: 64KB.
12. RAM: 20KB.
13. Programmable Clock Speed: 72 MHz (MAX).

Specification
1. Model: DTR-WG0158
2. Quantity: 1 set
3. Color: Blue + Yellow
4. Material: PCB + Alloy + Plastic
5. Chipset: STM32F103C8T6
6. Dimensions (5.5 cm x 2.2 cm x 1.2 cm), weight (7.5g)
7. Packing List:
- 1 x STM32F103C8T6 development board
- 2 x 1X20P pin headers (2.54mm pitch)