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4 Channel RF Remote Transmitter using nRF24L01- Arduino Compatible
- Rajkumar Sharma
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- SKU: EL112354
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This is an open-source Arduino compatible board that enables you to build a 4 channel RF remote control. The project consists of an Atmega328 microcontroller, 4 tactile switches, nRF24L01 2.4Gz RF Transceiver Module, power LED, function LED, and 3.3V regulator. The operating supply is 5V DC. All switches are connected between Arduino pins and GND and they can be used with internal pull-up resistors. The receiver can be an Arduino UNO with the following PIN configurations. A suitable receiver board will be published soon.
Transmitter
TX Arduino Pins
- Switch 1>> Digital Pin D2
- Switch 2 >>Digital Pin D3
- Switch 3 >>Digital Pin D4
- Switch 4 >>Digital Pin D5
- LED D1 >> Digital Pin D6
TX NDRF24L01 Transceiver Module
- CE>> Digital pin D9
- CSN>> Digital pin D10
- MOSI>> Digital pin D11
- MISO>> Digital pin D12
- SCK>> Digital pin D13
- IRQ>> Digital pin D8
- 3V and GND
Receiver
RX Arduino UNO Pins Outputs
- Digital Pin D2
- Digital Pin D3
- Digital Pin D4
- Digital Pin D5
NRF24L01 Transceiver Module on Arduino Uno RX
- CE>> Digital pin D9
- CSN>> Digital pin D10
- MOSI>> Digital pin D11
- MISO>> Digital pin D12
- SCK>> Digital pin D13
- IRQ>> Digital pin D8
- 3.3V and GND
Specifications
- Power supply: 5Vdc
- Onboard status LED
- PCB dimensions: 49.85 x 44.29 mm
Code
Arduino code is available as a download, which will help users to test this board. Please note that it requires a 2nd Arduino and an additional nRF24L01 module as receiver to test the TX board. Both transmitter and receiver codes are provided. A new Atmega328 microcontroller will need the Bootloader and Arduino firmware, check the link below to learn more.
https://www.arduino.cc/en/Tutorial/BuiltInExamples/ArduinoToBreadboard
Schematic
Parts List
| NO | QNTY. | REF. | DESC. | MANUFACTURER | SUPPLIER | SUPPLIER PART NO |
|---|---|---|---|---|---|---|
| 1 | 1 | CN1 | 4 PIN MALE HEADER PITCH 2.54MM | WURTH | DIGIKEY | 732-5317-ND |
| 2 | 1 | CN2 | NRF24L01 | SEED STUDIO | DIGIKEY | 1597-1352-ND |
| 3 | 2 | C1,C2 | 22PF/50V SMD SIZE 0805 | MURATA/YAGEO | DIGIKEY | |
| 4 | 3 | C3,C4,C5 | 0.1uF/50V SMD SIZE 0805 | MURATA/YAGEO | DIGIKEY | |
| 5 | 2 | C6,C7 | 10uF/16V SMD SIZE 1206 | MURATA/YAGEO | DIGIKEY | |
| 6 | 2 | D1,D2 | LED RED COLUR SMD SIZE 0805 | OSRAM | DIGIKEY | 475-1278-1-ND |
| 7 | 1 | R1 | 1M 5% SMD SIZE 0805 | MURATA/YAGEO | DIGIKEY | |
| 8 | 2 | R2,R3 | 220E 5% SMD SIZE 0805 | MURATA/YAGEO | DIGIKEY | |
| 9 | 1 | R4 | 10K 5% SMD SIZE 0805 | MURATA/YAGEO | DIGIKEY | |
| 10 | 4 | SW1,SW2,SW3,SW4 | TACTILE SWITCH | C&K | DIGIKEY | CKN9085CT-ND |
| 11 | 1 | U1 | ATMEGA328 | MICROCHIP | DIGIKEY | ATMEGA328-PU-ND |
| 12 | 1 | U2 | LM1117-3.3V | TI | DIGIKEY | LM1117MP-3.3/NOPBCT-ND |
| 13 | 1 | Y1 | 16MHZ CRYSTAL | ECS | DIGIKEY | X1103-ND |
| 14 | 1 | U1 SCKT | 28 PIN DIP IC SOCKET | DIGIKEY | ED3050-5-ND |
Connections
Gerber View
Photos
Video
nRF24L01 Datasheet
PCB
