315Mhz RF Remote Receiver with On Board Relay – Arduino Compatible

Rajkumar Sharma
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SKU: EL113453
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This is one channel RF Receiver with an onboard Relay. The project can be used for ON/OFF control of AC or DC loads using an RF remote. It’s an Arduino compatible Receiver project that consists of, Atmega328 microcontroller, 315MHz RF Receiver, 12v Relay, 5V Regulator, etc.

Arduino Pins Receiver: D3 Relay, D11 Data in from AM 315Mhz Receiver.

Features

Supply 12V DC @ 50mA When Relay is ON
Relay Contacts 10A @ 24V DC, 5Amps @ 250V AC
PCB dimensions: 64.77 x 32.86 mm

Applications

RF Remote ON/OFF Fans, Lights, Home Appliances, Door control. This receiver is compatible with 4 Channel 315Mhz RF Remote Transmitter and 2 Channel 315Mhz RF Remote Transmitter.

Arduino Code

Arduino Code provided as a download. The code is compatible with our 315Mhz Transmitter project, it toggles the Relay when the switch is pressed. A new Atmega328 chip requires Bootloader and Arduino firmware programming, check link bellow to learn more about programming the new Atmega328. PCB has an onboard programming port.

https://www.arduino.cc/en/Tutorial/BuiltInExamples/ArduinoToBreadboard

XY-MK-5V Receiver Module Specs

Receiver Model: XY-MK-5V
Transmitting Frequency: 433.92MHz, 315MHz, 330MHz
Operating Voltage: 5V
Receiving Sensitivity: 105dB
Modulation Type: OOK
Current Consumption in Standby: 4mA

more information: https://www.componentsinfo.com/fs1000a-433mhz-rf-transmitter-xy-mk-5v-receiver-module-explanation-pinout/

Schematic

Parts List

NO.	QNTY.	REF.	DESC.	MANUFACTURER	SUPPLIER	SUPPLIER PART NO
1	1	CN1	8 PIN MALE HEADER PITCH 2.54MM	WURTH	DIGIKEY	732-5321-ND
2	1	CN2	4 PIN MALE HEADER PITCH 2.54MM	WURTH	DIGIKEY	732-5317-ND
3	1	CN3	3 PIN SCREW TERMINAL PITCH 5.08MM	PHOENIX	DIGIKEY	277-1248-ND
4	2	C1,C4	10uF/25V SMD SIZE 1210	MUARATA/YAGEO	DIGIKEY
5	2	C2,C3	0.1uF/50V SMD SIZE 0805	MUARATA/YAGEO	DIGIKEY
6	2	C5,C6	22PF/50V SMD SIZE 0805	MUARATA/YAGEO	DIGIKEY
7	2	D1,D3	LED RED SMD SIZE 0805	OSRAM	DIGIKEY	475-1278-1-ND
8	1	D2	1N4007 SMD	DIODE	DIGIKEY	S1MBDITR-ND
9	1	E1	ANTENNA			1 FEET HOOKUP WIRE
10	1	M1	RF AM 315MHZ RX MODULE			XY-MK-5V ALIEXPRESS
11	1	Q1	BC847AL	NEXPERIA	DIGIKEY	1727-2924-2-ND
12	1	RL1	Relay 12V	TE	DIGIKEY	PB2029-ND
13	1	R1	10K 5% SMD SIZE 0805	MUARATA/YAGEO	DIGIKEY
14	2	R2,R3	1K 5% SMD SIZE 0805	MUARATA/YAGEO	DIGIKEY
15	2	R4,R5	1M 5% SMD SIZE 0805	MUARATA/YAGEO	DIGIKEY
16	1	U1	LM78M05	ON SEMI	DIGIKEY	MC78M05CDTGOS-ND
17	1	U2	ATMEGA328TQPF-32	MICROCHIP	DIGIKEY	ATMEGA328PB-AURCT-ND
18	1	X1	16Mhz	ECS INC	DIGIKEY	X1103-ND