Difference between 433 remote control and 315 remote control and its code method

The frequency used by the radio remote control is 433Mhz or 315Mhz, also referred to as 433 remote control and 315 remote control. The wireless remote control uses the nationally prescribed open frequency band. In this frequency band, the transmission power is less than 10mW and the coverage is less than 100m or If it does not exceed the scope of this unit, it can be used freely without having to go through the approval of the Radio Management Committee.

Chinese open frequency band is 315Mhz, while Europe and the United States and other countries are 433Mhz, so products exported to the above countries should use 433 remote control; radio remote control commonly used encoding methods are three types, namely fixed code, learning code and rolling code.Learning codes and rolling codes are upgraded products of fixed codes. The rolling code remote control is currently the most secure. At present, all occasions with high confidentiality requirements use rolling coding.

433 remote control and 315 remote control copy method:

1, Clear Code

Simultaneously press the 433 remote control or the two buttons on the upper row of the 315 remote control. After the indicator light flashes and then release your hand, the clearing is successful. The method of distinguishing the success of the clearing is to press one of the four buttons of the remote control at will, and the indicator flashes once and then goes out.

2, Copy

One hand holding the original remote control with one hand holding the copy 433 remote control or 315 remote control, the two remote control as close as possible, while pressing the two remote control to open the door, copying the remote control indicator flashing quickly means that the copy is successful , then release your hand. In the same way, copy the other three buttons.

(If the light does not flash when copying, you can change the position, try to move the heads of the two remotes closer and try again. In short, you can try several more positions.)

3, Recovery

If you accidentally remove the useful code (that is, the above two keys may be accidentally pressed), you can press the two buttons on the lower right side of the remote control to flash quickly before you can recopy other 433 or 315 remote controls. Release the hand again to indicate that the recovery is complete.

The above is about the difference between the 433 remote control and the 315 remote control and its code method. Yaoertai 13 years professional remote control manufacturer, 433 remote control and 315 remote control from raw materials, production, processing a series of services, independent research and development, production and after-sales, many industries, high cost performance, after-sales protection, welcome everyone to come advisory!