Arduino MEGA 2560 R3 – UltiMachine,Arduino Compatible Mega 2560 R3 Plus - MEG-03 - Walmart.com,Amazon.com: ePalZoneXP MEGA 2560 R3 ATMEGA2560 ATMEGA16U2,81qXKh5t46L._AC_UF350,,71x5n30VTML._AC_UF894,Microcontroller:ATmega2560-16AUOperating Voltage:5VInput Voltage (recommended):7-12VDigital I/O Pins:54 (of which 15 provide PWM output)Analog Input Pins:16DC Current per I/O Pin:40 mADC Current for 3.3V Pin:50 mAFlash Memory:256 KB of which 8 KB used by bootloaderSRAM:8 KBEEPROM:4 KBClock Speed:16 MHzArduino MEGA 2560 R3 3個を動作確認後、発送します。マザーボード @HKK_PC。