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AlphaBot User Manual
17
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Infrared remote control
The smart robot applies
LFN0038K receiver to
receive infrared signal.
The infrared remote
controller provided with
the application kit,
complies with the
standard NEC encoding
protocol. When the infrared receiver receives the infrared signal, it will output the
relative pulses to the main control chip. Then, the main control part decode the
signal to the key code, so as to control the corresponding motor.
Infrared NEC protocol encoding is a kind of PWM serial code, in which the binary
logical“0” is in the cycle of 1.125ms with the pulse width 0.565ms and the interval
0.56ms, and the binary logical“1” is in the cycle of 2.25ms with the pulse width
0.565ms and the interval 1.685ms.