
| Microcontroller | Atmel ATmega32u4 in TQFP-44 package |
| Operating Voltage | 5V USB powered or 6V to 9V Vin |
| Power and communications | USB Micro B |
| Current | Approx 90mA average during normal operation Max. 300mA |
| LED Matrix | 2x, 8x8, 3mm green LEDs |
| Clock speed | Microcontroller 16MHz, RTCC 32.768MHz |
| SRAM | 2.5 KB |
| EEPROM | 1 KB |
| Flash Memory | 32 KB |
| Expansion Header | Gnd, Vin, 5V, Sleep, Piezo-, Piezo+ |
| Size | 66mm wide x 32mm high x 17mm deep |
| Weight | 30g |
| HSCODE | 8531200000 |
| USHSCODE | 9114905000 |
| UPC | 841454106005 |
| COO | CHINA |
Technical details
| Dimensions | 110mm x70mm x17mm |
| Weight | G.W 32g |
| Battery | Exclude |