Technical summary
It has 54 digital input/output pins (12 of them PWM), 12 analog inputs, 4 UART serial ports, an 84 MHz clock, a USB OTG-compatible connection, 2 DACs (digital to analog), 2 TWI, a Reset button and an erase button.
The board's inputs/outputs are available on female connectors located along the edges of the board.
Warning: unlike the Arduino boards (Uno-328, Mega 2560 or Leonardo), the input/output ports of this board accept only 3.3V logic levels. Any higher voltage applied (such as 5Vdc) may damage the board.
Specifications:
- Microcontroller: AT91SAM3X8E
- Operating voltage: 3.3V
- Supply voltage (recommended): 7-12V
- Supply voltage: 6-20V
- Number of I/O: 54 (12 of which can generate PWM signals)
- Number of "Analog/Digital" ports: 12
- Number of "Analog" ports: 2 (DAC)
- Max. current per I/O: 130mA
- Current for 3.3V pins: 800mA
- Current for 5V pins: 800mA
- Flash memory: 512 KB
- SRAM: 96 KB (2 banks, 64 KB and 32 KB)
- Clock speed: 84 MHz
