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4 Channel 315Mhz RF Remote Transmitter – Arduino Compatible
- Rajkumar Sharma
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- SKU: EL113426
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This is a 4 channel RF Transmitter unit that consists of an Atmega328 microcontroller, 4 x tactile switches with pull-down resistors, programming port, and 315Mhz RF transmitter module. It is Arduino compatible open-source project that can be used for many RF transmitter applications. It is advisable to use a 30cm hook-up wire as an antenna to enjoy a maximum range of the transmitter.
Arduino Pins: D3, D4, D5, D6 Tactile Switch, and D12 data out for AM transmitter module.
Note1: The board will work with 2 types of RF modules, 3-Pins or 4-Pins ones. Use a suitable connector as per module.
Note2: This project is compatible with our 1 channel RF relay board. Users may use up to 4 different receivers. Arduino code is available as a download for transmitter and receiver
Features
- Supply 5V DC @ 20mA
- 4 Tactile Switches with Pulldown Resistors
- PCB dimensions 75.09 x 30.80 mm
Applications
- RF Remote ON/OFF AC or DC loads like Fans, Lights, Home Appliances, Door control. This transmitter is compatible with 315Mhz RF Remote Receiver with On-Board Relay.
Arduino Code
Arduino Code is available as a download. The code works with a single SW1, it toggles the Receiver Relay when the switch is pressed. A new Atmega328 chip requires a Bootloader and Arduino firmware, check the link below to learn more about programming the new Atmega328.
Transmitter PCB has an onboard programming port.
https://www.arduino.cc/en/Tutorial/BuiltInExamples/ArduinoToBreadboard
FS1000A Receiver Module Specs
- Transmitter Model: FS1000A
- Transmitting Frequency: 433.92MHz, 315MHz, 330MHz
- Operating Voltage: 3V to 12V
- Transmitting Power: 10mW to 40mW 16dBm
- Transmitting Range: 20 to 100 meters through walls & 500 meters max in open area
- Data Transfer Rate: <10 Kilo Bytes Per Second (Range drops above 2400 bytes per second)
- Modulation Type: OOK
- Current Consumption: 20 to 28mA
- Current Consumption in Standby: 0mA
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 | 2 PIN MALE HEADER PITCH 2.54MM | WURTH | DIGIKEY | 732-5315-ND |
| 3 | 1 | C1 | 10uF/16V SMD SIZE 1206 OR 1210 | MUARATA/YAGEO | DIGIKEY | |
| 4 | 2 | C2,C3 | 0.1uF/50V SMD SIZE 0805 | MUARATA/YAGEO | DIGIKEY | |
| 5 | 2 | C4,C5 | 22PF/50V SMD SIZE 0805 | MUARATA/YAGEO | DIGIKEY | |
| 6 | 1 | D1 | LED RED SMD SIZE 0805 | OSRAM | DIGIKEY | 475-1278-1-ND |
| 7 | 1 | E1 | ANTENNA | 30CM HOOK-UP WIRE | ||
| 8 | 2 | M1,M2 | RF AM TX MODULE 315MHZ | CHINA | FS1000A ALIEXPRESS | |
| 9 | 5 | R1,R2,R3,R4,R6 | 10K 5% SMD SIZE 0805 | MUARATA/YAGEO | DIGIKEY | |
| 10 | 1 | R5 | 1K 5% SMD SIZE 0805 | MUARATA/YAGEO | DIGIKEY | |
| 11 | 1 | R7 | 1M 5% SMD SIZE 0805 | MUARATA/YAGEO | DIGIKEY | |
| 12 | 4 | SW1,SW2,SW3,SW4 | TACTILE SWITCH | C&K | DIGIKEY | CKN9085CT-ND |
| 13 | 1 | U1 | ATMEGA328TQPF-32 | MICROCHIP | DIGIKEY | ATMEGA328PB-AURCT-ND |
| 14 | 1 | X1 | 16Mhz | ECS INC | DIGIKEY | X1103-ND |
Connections
Gerber View
Photos
Video
Atmega328 Datasheet
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