KIT INCLUDES:

• 9v battery - 1
• Battery DC jack –1
• Arduino uno with USB cable – 2
• NRF24L01 – 2
• Push button – 1
• Led – 2
• Breadboard 170 points – 1
• Jumper wires male to female – 40 pieces
• Jumper wires male to male – 40 pieces

HARDWARE REQUIRED

• 9v battery - 1
• Battery DC jack –1
• Arduino uno with USB cable – 2
• NRF24L01 – 2
• Push button – 1
• Led – 2
• Breadboard 170 points – 1
• Jumper wires male to female – 40 pieces
• Jumper wires male to male – 40 pieces

SOFTWARE REQUIRED

Arduino IDE 1.8.5 (programmable platform for Arduino)

Click To Download: https://www.arduino.cc/en/Main/Software

SPECIFICATIONS

NRF24L01

NRF24L01+ is a single-chip radio transceiver for the worldwide 2.4-2.5 GHz ISM band. The radio transmitters and receivers include frequency generator, enhanced Shock Burst mode controller, power amplifier, crystal oscillator modulator and demodulator. You can select the output power channel and protocol by setting through the SPI port. The current consumption for the nRF24L01+ is extremely low - under the transmitter mode, when the transmitting power is 0dBm, the current consumption is only 11.3mA; under the receiving mode, it is 13.5mA; under the power down and idle mode, the consumption is even lower. As for application, it's widely used in many devices such as wireless mouse and keyboard, game handle, remote control set, industry sensor,toys, etc.
The pin functions of NRF24L01 are as shown:

The nRF24L01 is a highly integrated, ultra-low power (ULP) 2Mbps RF transceiver IC for the 2.4GHz ISM (Industrial, Scientific and Medical) band. With peak RX/TX currents lower than 14mA, a sub μA power down mode, advanced power management, and a 1.9 to 3.6V supply range, the nRF24L01 provides a true ULP solution enabling months to years of battery lifetime when running on coin cells or AA/AAA batteries

• Voltage: 3-3.6V (recommended 3.3V) V
• Maximum output power: +20dBm
• Emission mode current(peak): 115mA
• Receive Mode Current(peak): 45mA
• Power-down mode current: 4.2uA

LED

CIRCUIT CONNECTION

TRANSMITTER

RECEIVER

Connect the following pins to your Arduino: as shown in figure

• Pin 9 - CE
• Pin 10 - CS(N)
• Pin 11 - MOSI
• Pin 12 - MISO
• Pin 13 - SCK
• 3.3v - VCC
• GND - GND
• On the Receiver Pin 3 - LED
• On the Transmitter Pin 7 – Button

Same connection for receiver and transmitter and you can use any Arduino board

CODE

For coding Arduino first we need some library files so follow the steps given below:

• Download the ZIP file from this linkhttps://drive.google.com/open?id=1uUkFgECfYC1rVOSlrhtzfWQvA3czysji)
• Unpack the ZIP file.
• Go to Arduino library folder
• And paste both the folders named “nFR24L01" and "RF24" into it.
• Now, program the Arduino receiver and transmitter

Code for Receiver

https://docs.google.com/document/d/e/2PACX-1vR0D73b8ueoIvT5kW_KPXRxbe7ucVuRYIxtp4IwUJI0T371czOjpVDrQGrxi6MBK2TzrOO-C4kDEDXA/pub

Code for Transmitter

https://docs.google.com/document/d/e/2PACX-1vQqocuiFoUWL_CYWIooYa_Lr0tUlkPO9McfwYJ4m81P867qeQTvTkFWcQ-dIxga9FUHfCZqaNPLlN_o/pub

WORKING

This is the last step after completing the circuit and coding part we can easily test it by switching "ON" and "OFF".

When the switch is "ON" on transmitter side connected to pin 7 of Arduino then led glows on the receiver’s side connected to pin 3 of Arduino The video shows the output of this project.