USB BUB 2

  The newer USB BUB III is available here!USB to TTL serial adapter The Modern Device USB-BUB is several years old now and we've sold many thousands of them. We decided to spin another FTDI board but not to retire BUB 1. We wanted a board that was slightly smaller, had a voltage option on the power line, and could accommodate an outboard voltage regulator, so customers could easily work with oddball voltages. Jean-Claude Wippler - the master of the Jee universe, also wanted a symmetrical board that would perfectly fit the JeeNode series of boards. We even made it blue, in honor of the Jee Internationale. Here's a feature list. 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 intern