4 Channel RF Remote Transmitter using nRF24L01- Arduino Compatible

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 2^nd 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

Connections

Gerber View

Photos

Video

nRF24L01 Datasheet

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