Specifications
- Operating voltage: 5V DC
- Input voltage: 6 – 20V DC (7V – 12V recommended)
- USB Controller: CH340G
- Clock: 16 MHz
- Flash memory: 256KB
- SRAM: 8KB
- EEPROM: 4KB
- Digital I/O pins: 54
- Analog pins: 16
- DC current per I/O pin: 40mA
- DC current for 3.3V pin: 50mA
Install CH340 Drivers
If you are using Windows you may need to install the CH340 USB driver in order to upload sketches:
- https://www.catalog.update.microsoft.com/Search.aspx?q=CH340
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