Reference
Detail Explanation
LED “L”
Here is an onboard LED in the expansion shield, it is connected to digital pin 13.
D&A
Letter ’D’ and ‘A’ are printed in the Gravity: IO Expansion & Motor Driver Shield
‘D’: stands for digital signal, which should be connected to digital pins.
‘A’: stands for analog signal, which should be connected to analog pins.
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. Even with multi-sensors connections there is no need to worry about an 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 we designed in the following order: Signal > VCC > GND is ensure a consistent linear order for improved wiring efficiency.
Other Preparation Work
The new expansion shield added switch ‘RUN’ and ‘Download’. When using controller such as Arduino UNO/ Mega, you may fail to download program because downloading via the USB and the attached XBee would occupy the same serial port. Therefore, you should switch to ‘PROG’ in download and switch to ‘RUN’ in run.
Other Supplementary Information
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