“The three Femtobucks that I bought are perfect for driving my 3 x 3 matrix of Red, Green and Blue power LEDs. They are also resilient enough to withstand my poor soldering skills! (It is best to fit them with pin headers or 0.1 inch sockets while experimenting. If you solder wires directly to the board it becomes difficult to change your wiring during development of an idea.) Mine still work fine though, despite me cooking the connections quite badly! Perfect for use with my Arduino Nano.”
