Screw Shield for Arduino battery charge and has 1-bit white/black and

and has 1-bit white/black and 1-bit red full display capabilities

Select the power source "USB" or "BATTERY" by theslide switch on the edge of the board

Also included in this kit is a ground plate

Chain input allows reception of data from multiple Mini Maestros using a single serial receive line without extra components (does not apply to Micro Maestros)

Screw Shield for Arduino battery charge and has 1-bit white/black andThe Arduino Compatible Screw Shield is a terminal expansion board that can be screwed directly to the terminal on the thread and is reliable and convenient. It can be plugged into the Arduino controller. You can use this shield to save yourself from the bad port connection. Feel secure with this arduino compatible screw shield.