The DTR pin must be set to high (+5V) -- pin 4 on the DB9. Also RTS pin -- pin 7 on DB9 -- must be tied to ground. DTR and RTS together provide the power to the optical RS-232 interface. Pin 5 on the ...

In Arduino 3.0.0 there is a new feature called Peripheral Manager. In the specific case of SPI, when any of its 4 pins (MOSI, MISO, CLK and CS) are used for any other function, for instance, with ...

The reprogramming of the Lily main board was easily allowed by the USB to UART board that does not require the need for soldering. The Lily Pad main board is using the FT232RL integrated circuit from ...