315Mhz remote relay switch kits - 2 channels

This remote switch allows you to remotely control any 12 Volt DC device. Perfect for controlling any 12V devices such as Lights , Fans,Landscaping Lighting and more. This easy-to-wire kit is perfect for anybody with a basic knowledge of electrical wiring, and can easily be wired to many 12V applications. For PC Moders, the end of result of the Remote Control 12VDC kit are truly impressive and are sure to ooh and ah the crowds. For DIY lovers, the kit will give some magical effect to your projects.

1、Transmitter module :

Special Parameter :

Frequency: 315Mhz

Modulation: ASK

Working Voltage: 12VDC

Frequency difference：min±75KHz max±150KHz

Launching power: 50mW(12V)

Working current：＜10mA（12V）

Frequency stability:0.037ppm/℃

Temperature range：-20℃--+85℃

Transmission rate:≤10Kbps

Encoder : PT2262

Timing resistor：1.5M

Receiver Sensibility: -105dbm

Emission Distance: 500m in open ground

Size : 37 x 23 x 8mm

This module have been pinout All data interface, convenient for useage, and only when more than one data bits among 10 ~ 13 four data bits are high electricity level, the module will transmit the high frequency signal .

Relay Operation Modes :

The receiver has three modes that control how the relay outputs function. These modes are user selectable using

the 3 pin jumper on the receiver.
 
Momentary :

Move the switch position to “M???to set the selected relay(s) in momentary mode. In momentary mode, the selected relay(s) will change it’s state and maintain it for the duration of the transmission received. Once the transmission is terminated, the relay will change back to its original state.
 
Flip-Flop :

Remove the shunt to set the selected relay(s) in Flip-Flop mode. In Flip-Flop mode, the selected
relay(s) will change its state and maintain it until a matching transmission is received. Every time a transmission is received the relay will change its state and maintain it until another transmission is received.
 
Latching :

Move the switch position to “L???to set the selected relay(s) in Latching mode. In latching mode, when the selected relay is activated by the transmitter, that relay will change it’s state and maintain it until power to the receiver is removed or interrupted.

 
Please refer to the simple drawing for the 315Mhz RF link. On the transimitter side, You would need to supply 3-12VDC to the "+12V" pin, and set "VT" high to enable transmission. On the receiver side, you may use +5VDC(aka VCC) for power and read the output from D0~D3. "VT" will indicate thenever there is changed data incoming.

                                      

Encoding and Decoding : 

The popular link is like this: MCU -> Encoder -> Transmitter ------ Receiver -> Decoder -> MCU,

PT2262(Encoder) and PT2272(Decoder) are optional, their existence is to 1)avoid confusing when multiple RF links in range 2) isolate disturbance. You can integrate the encoding and decoding work to the MCUs on both side. Whenever there is no 315Mhz devices around, you may use it as direct cable connection.

This multifunction AC double relay receiver，power from AC 220V,it can control A and B two load at the same time，and it can switch channel bt jumper wire。you can try to change the situation of the AB jumper wire cap to grope concrete corresponding channel。

This multifunction AC double relay receiver use SCM to be control chip，so the working mode can change flexiblly，it can work in latch、crawl、trigger mode，
latch mode:link the pin 5 of EM78P153 to GND，
crawl mode:link the pin 6 of EM78P153 to GND
trigger mode:not link the pin 5、6 of EM78P153 to GND。

You will correct the code before use，the method is simple：after link Land N to 220V AC power，then push the white button.After 3 seconds，the red LED of PCB light，then push the button of remote control. Now the relay can be controled。If you want to clear the remote control，you can continue to push the button，After 5 seconds, red LED can flicker 3 times.