When the remote controller is in the learning state, every time the user presses the control key, the infrared receiving circuit begins to receive the external infrared signal, and at the same time, it is converted into an electrical signal, which is then detected, shaped and amplified, and then sampled by the CPU at regular intervals. The binary data of each sampling point is stored in the designated storage unit in units of 8 bits for future control of the equipment.

When the remote controller is in the control state, every time the user presses the control key, the CPU reads a series of binary data from the designated storage unit and serially outputs it to the signal holding circuit. At the same time, the signal is modulated by the modulation circuit, and the modulated signal is amplified and emitted by the infrared emitting diode, thus controlling the function of the equipment corresponding to the key.

Expand the function of data infrared remote controller;

1, suitable for coding infrared remote control household appliances;

2, a variety of household appliances can be remotely controlled;

3. It has a learning/control multiplexing key, 5~ 10 device selection keys and 10~20 function control keys. A device selection key and each function control key can control a device together;

4. Through a device selection key and various function control keys, the learning and control of common functions of various devices can be realized;

5. Low cost and strong anti-interference ability.

Baidu encyclopedia-infrared remote control