100% brand new and high quality 14 Digital input/output ports RX, TX D13, D2 ~~ of, or 8 analog input port A0 to A7 The TTL level serial transceiver port RX/TX 6 PWM ports, D3, D5 , D6, D9, D10, D11 supports serial download Support for external 5v~ 12V DC power supply Support 9V battery-powered clock frequency 16MHz Dimensions:33.3 x 18.0 (mm) KETERANGAN : Untuk mendownload program dapat menggunakan : 1. Downloader USBASP melalui PIN SPI 2. USB to TTL FTDI232 melalui PIN Tx, Rx, DTR 3. USB to TTL Ch340 melalui PIN Tx,Rx,DTR 4. USB to TTL PL2303 melalui PIN Tx,Rx,DTR 5. USB to TTL CP2102 melalui PIN Tx,Rx,DTR