A symmetrical board that fits perfectly with the [JeeNode](/tags/jeenode) series of boards, made blue in colour, in honor of the Jee Internationale. Features: * A polyfuse protects the USB line from short circuits and those alarming "USB line is overcurrent" messages. * Red and green LEDs show serial activity on both the TX and RX lines. * A shunt and jumper pads (your choice) choose power levels from 5 to 3.3 volts, or an outboard regulator voltage. * A shunt and jumper pads to switch logic levels from 5 to the FTDI's internal 3.3 volts or an outboard regulator voltage. * A capacitor on the DTR line to facilitate DIY Arduinos.