Gravity: IO Expansion & Motor Driver Shield V1.0 is sufficient in interfaces. Compared to limited

power supply interfaces in the control shields, it equipped with more GND interfaces and power

supply interfaces. Although a multi-sensors connection, no need to worry about interface shortage.

A row of red pins and a row of black pins are below digital pins and analog pin. They are the

expanding power supply interface. The red pins connect to the power supply (VCC) and the black

pins connect to GND.

DFRobot Colors Explanation

•

Green:

Digital Signal

•

Blue:

Analog Signal

•

Red:

VCC

•

Black:

GND

The reason why designed the order as Signal > VCC > GND is to correspond to sensors linear

order, the design has improved the wiring efficiency.

RUN/PROG

The new expansion shield added switch ‘RUN’ and ‘Download’. When using controller such as

Arduino UNO/ Mega, you may failed to download program because downloading and XBee would

occupy the same serial port. Therefore, you should switch to ‘PROG’ in download and switch to

‘RUN’ in run.