1、Chip characteristics

1、Includes RF receiver chip, commonly used in data transmission and control systems

2、Can be operated independently without external MCU control

3、Compatible with all fixed code chips: EV1527, SC1527, HS1527, RT1527, etc.

4. Automatic identification of the code chip type

5、Interlocking, pointing and self-locking functions can be converted at will without jumping wires, long-term stability

6、Learn to code, no manual coding

7、Built-in memory, safe and reliable

8、Extra wide working voltage

2、Scope of application

Wireless remote control switch

Remote motor control

security systems

Access control systems

Building community automation and fire protection

Street lighting control systems

Smart Home Controllers

3、Performance Parameters

ASK/OOK RF reception

Operating voltage: 2.0V - 5.0V

Frequency range: 433-433.92MHz, 315MHz (can be customized)

Receiving sensitivity: -111dBm

Receive power consumption: 4.5 - 6.6mA

Standard CMOS interface control

4、Pin Description

5. Wiring diagram

6. Function description and mode setting

Button control function: After the external learning button, press the learning button 1 time, the LED will flash 1 time and the output pin will go high.
When the learning button is pressed once, the LED will blink once and the output pin will go high; when the learning button is pressed once again, the LED will blink once and the output pin will go low.

The output of the output pin goes low.

Self-locking function: After the external learning button is pressed twice, the LED will blink 2 times.

After the LED is lit, press any button on the remote control that needs to be matched, the LED on the module will flash continuously and then turn off.

When the LED is lit, press any button on the remote control to be matched and the LED on the module flashes continuously and then goes out, the match is successful.

After that, press the button of the matched remote control, the output pin on the module will be high and remain unchanged.

When the same button is pressed again, the output of the corresponding pin on the module becomes low.

Interlock function: After the external learning button is pressed 3 times, the LED will flash 3 times.

After the LED lights up, press a button on the remote control that needs to be matched, the module indicator will flash and then light up.

When the LED is lit, press a button on the remote control to be matched, the LED on the module will flash and then turn off.

If the LED on the module flashes continuously and then goes out, the match is successful.

Afterwards, the two keys of the remote control control control the output pins of the module high and low respectively, first configuring

The first button can only control the high level output of the output pin, the later button can only control the low level output of the output pin.

After the external learning button is pressed 4 times, the LED flashes 4 times.

After the LED lights up, press the button on the remote control that needs to be matched, the module indicator flashes and then goes out.

When the LED lights up, press the button on the remote control to be matched and the module light flashes and then goes out, the match is successful.

After that, press and hold the button of the matched remote control, the output pin of the module will be high, release the button, the output of the corresponding pin of the module will be low.
When the button is released, the output of the corresponding pin on the module goes low.

Power on mode: After the external learning button, press the learning button 6 times, the module light will blink and then turn off.

Afterwards, when the module is powered off and re-powered, the output pins of the module go high directly.

Clear code reset function: After the external learning button is pressed 8 times, the output pin output goes low and the LED on the module flashes.
The LED on the module flashes 8 times and then goes out, clearing all the stored remote controls on the module, and then power off and power on again.

Caution:

RF devices are voltage sensitive, if the power supply is unstable or ripple is large, please add a filter to the power input to ensure that the supply voltage does not exceed the maximum operating voltage. If the supply voltage is unstable or ripple is high, please add a filter to the power input to ensure that the supply voltage does not exceed the maximum operating voltage of the product.

This device is electrostatically sensitive and must be protected from static electricity during transport and use.

Please ensure that the temperature does not exceed 245°C when mounting.

It is recommended that spring antennas with rubber are not used in applications to ensure better product yields.