What is an nRF24L01 module?

The nRF24L01 is a wireless transceiver module, meaning each module can both send as well as receive data. They operate in the frequency of 2.4GHz, which falls under the ISM band and hence it is legal to use in almost all countries for engineering applications.

Can nRF24L01 transmit video?

Andrew Rossignol posts on The Resistor Network a project in optimized networking over inexpensive nRF24L01 radio modules. First was connection between to Raspberry Pi computers at 30kps. Now with optimization, the units can transmit up to 300kbps, enough for H. 264 HEVC video.

Is nRF24L01 a microcontroller?

NRF24L01 Pinout Configuration The power pin of the module is VCC, which connects itself with the power supply. nRF24L01 operates with another microcontroller and it will need a common ground to operate with it.

What is NRF communication?

The nRF24L01+ transceiver module transmits and receives data on a certain frequency called Channel. Also in order for two or more transceiver modules to communicate with each other, they need to be on the same channel. The channel occupies a bandwidth of less than 1MHz at 250kbps and 1Mbps air data rate.

What is nRF24L01 Arduino?

NRF24L01 is a wireless transceiver module which operates in the 2.4GHz ISM frequency band. It is used to communicate data wirelessly which is specially designed for ultra-low power applications. It can be configured and operated through SPI Protocol. It can transmit data at a rate up to 2 Mbps.

How connect nRF to Arduino?

To start with, connect VCC pin on the module to 3.3V on the Arduino and GND pin to ground. The pins CSN and CE can be connected to any digital pin on the Arduino. In our case, it’s connected to digital pin#8 and #9 respectively. Now we are remaining with the pins that are used for SPI communication.

How do I know if NRF24L01 is working?

Connect one NRF24L01 to Uno R3 and the other to Mega2560. The nRF24L01 module on the UNO constantly sends data, and that on the Mega2560 receives data. Open the IDE and then Serial Monitor for the two boards respectively, and then compare the data sent and received to test whether it succeeds.

What is the use of NRF24L01?

NRF24L01 is a wireless transceiver module (works on SPI Protocol), which is used for sending and receiving data at an operating radio frequency of 2.4 to 2.5 GHz ISM band.

How does the nRF24L01+ work?

SPI Interface The nRF24L01+ transceiver module communicates over a 4-pin Serial Peripheral Interface (SPI) with a maximum data rate of 10Mbps. All the parameters such as frequency channel (125 selectable channels), output power (0 dBm, -6 dBm, -12 dBm or -18 dBm), and data rate (250kbps, 1Mbps, or 2Mbps) can be configured through SPI interface.

How can I reduce the noise of the nRF24L01+?

To prevent this noise from entering the system, it is advised to place a 10 µf filter capacitor across the power supply line as physically close to the nRF24L01+ module as possible. An easiest way to get over with is to use a very inexpensive Adapter Module for nRF24L01.

What is the difference between Mosi and IRQ on nRF24L01?

MOSI (Master Out Slave In) is SPI input to the nRF24L01. MISO (Master In Slave Out) is SPI output from the nRF24L01. IRQ is an interrupt pin that can alert the master when new data is available to process.

Why does the nRF24L01+ offer the highest receiver sensitivity for WiFi?

Reason for this is WiFi uses most of the lower channels. The nRF24L01+ offers highest receiver sensitivity at 250Kbps speed which is -94dBm. However at 2MBps data rate, the receiver sensitivity drops to -82dBm. If you speak this language, you know that the receiver at 250Kbps is nearly 10 times more sensitive than at 2Mbps.