Keywish Hummer-Bot-2.0 Instruction Manual page 78

amplifier and the pulse amplitude limiter, the limiter controls the pulse amplitude at a certain level,
regardless of the distance of infrared transmitter and receiver. AC signal enters the band-pass filter which
can pass the 30KHZ to the load wave 60KHZ and enters the comparator through the demodulation circuit.
The comparator outputs high or low level and restores the output signal waveform. The system procedure
diagram is shown in Fig.3.2.36.
LED
Code Modulation
Keyboard
Remote Control Transmitter
Demodulation
Light/electronic Amplification
Decode
Remote Control Receiver
Fig.3.2.36 Remote Control System Diagram
3.2.5.3 Experimental Procedures
1, Installing the infrared receiving head on the development board (if it has been installed in the the eighth
step in "3.1.2", please ignore. The complete installation is shown in Fig.3.1.37.
2, Referring to Fig.3.2.37 and connecting the infrared receiving module to the Arduino board (you can
choose other IO ports according to your own ideas)
Note: Do not reverse power line, otherwise the receiving head will burn up.
Figure .3.1.37 Infrared Module Connection Diagram
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