Description: Infrared transmission: U13 CD4060B through an external crystal oscillator circuit all the way in the ninth end to produce a square wave signal 38KHZ frequency modulated signal as input AND gate U14A 74HC08 the two ends another way for the need to transmit data, it ends by DO14-input AND gate an end U14A 74HC08' s. Data input in the AND gate modulation data is formed at its output end of the modulated wave, the frequency of 38KHZ thereby emits infrared light through the control of the infrared light emitting diode Q2 S8050 D13. Q3 1736 to go to the modulation wave infrared receiver, which removes the modulation wave 38KHZ, the demodulated into the original input data signal output to the end by 3 U14B 74HC08 and drive shaping U5B 74HC14, the connection to DI9.
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红外传输.vi
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