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The RF Shield has 8 three-state address pins, which can support up to address code. The three state is High,Low and Floating. The level of the pin is set by the jumper.
Above the address pin,there is L. Under the address pin,there is H. So,if you jump the L and the address pin,the level of the address pin is Low.
Remove the jumper,the level is Floating. In actual use, address code depends on the remote control. Only the address codes are equal, it is possible to carry out communication.
You can also disassemble the remote control, set the short leg to modify the remote address code. It is simple and convenient!
According to the address code of the remote wireless telecontroller, set the address code of this shield by pluging or pulling the jumper.
Only when the address code of the telecontroller is equal to the address code of the shield, the command transmit by the telecontroller can be received by this shield. When done, turn the switch to RUN. Adjust the position of the antenna, which makes it perpendicular to the board. This can increase the receiving distance. Open the serial monitor, press the button on the telecontroller.
You can see the LED will twinkle once when you press the button. This indicates that this shield has received command from the telecontroller. You can also see which button pressed on the serial monitor. The high level 1 is the pressed button.
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