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Questions tagged [nrf24l01+]

An ultra low-power transceiver for radio communication in the 2.4GHz ISM band (Industrial, Scientific, and Medical). Commonly used by tinkerers because of its low cost and its easy to use SPI interface.

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10 views

Arduino Sensor Values to Raspberry Pi using NRF24

Im trying to send temperature sensor data through NRF24L01 to Raspberry Pi and read it in Raspberry Pi using python. But the temperature sensor data comes to the Raspberry Pi as letters, which I found ...
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20 views

Basic communication with nrf24l01 between nodemcu and arduino nano

I spent the last two days to find a way to set up a basic communication between a nodemcu amica and an arduino nano with a nrf24l01 module; all of this without success.. Here the code uploaded on my ...
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23 views

encrypting data between nRf24l01 using AES

i am trying to send encrypted data using AES via a pair of nrf24l01 and two arduino uno boards,i have made two sketches but can not get it working the used library for AES enter link description ...
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1answer
27 views

NRF24L01+ Getting Started Acknowledge Failed

I Have followed numerous guides and tutorials for getting the NRF24L01+ modules working with an Arduino Uno. I have swapped to a genuine Arduino and tried 4 different NRF modules. All without luck. I ...
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44 views

NRF24L01+ (TMRH20 library): Receiver gets blank data

I am working on sample Arduino project for communication over NRF24L01+ (TMRH20 library), everything is working fine with my example except one issue my Receiver gets message but that message is blank....
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31 views

Can't use MEGA as Transmitter and UNO as Receiver nRF24L01

I have a project with 7 May Deadline, i really need help on this. Here is the problem, I need to use my Arduino MEGA 2560 as transmitter and Ardino UNO(CH340G) as receiver. I can use uno as ...
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1answer
23 views

nRF24L01 6TXA_1RXA network + 6TXB_1RXB network with arduino

How to build nRF24L01 network shown above with arduino ? SPI pins are shared between RXA,RXB and separate pins for both CE, CSN, IRQ. Which nRF24L01 library supports my requirements ?
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25 views

How do I feed NRF24L01 from Arduino Pro Mini?

I wanted to control speed of my four coreless DC motors using Arduino Nano. Then I realised my 3.7V 380mAh 25C and 720mAh (110mAh on picture is just to hold my battery's place) 25C LiPo batteries won'...
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1answer
22 views

I have a problem with my nano arduino and the nrf24l01 as receiver

Hello I have a problem with my nano arduino and the nrf24l01 as receiver . I'm trying to upload my code to my board, but it say that my code have this mistake: Receiver:45:10: error: void value not ...
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7 views

Can I customize RF24Network message.type and where would it be referenced?

I've been out of touch with arduino's and i'm exploring networking a bunch of arduino nano's together using the RF24Network library. All sorts of sensors attached to different nano's. Some will have ...
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28 views

NRF24L01 Networking [closed]

We checked Xbee, ZigBee and other alternatives already and we're trying to figure out a way for good and cheap network system. NRF24l01 looks good but 32 bytes not enough actually. Even so looks like ...
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50 views

Send ECG signal with NRF24L01 from Arduino to Raspberry Pi 3

I'm using nRF24L01 to send ECG samples from an Arduino to Raspberry Pi, the type of sample is double after denoising, and I stock them in a byte[8] to send 8 by 8 sample. When I print the sample ...
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1answer
33 views

how to use AckPayload correctly

i'm trying to send String from an Arduino(Uno) using the Serial. to an another Arduino(Uno). using nRF24l01+. and I'm using the library RF24.h the String is sended correctly but I have some problems ...
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1answer
51 views

Serial.parseInt() takes longer time than desired

My whole code for master. Please head to void read() where I've used parseInt() #include <nRF24L01.h> #include <printf.h> #include <RF24.h> #include <RF24_config.h> #...
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1answer
40 views

Problem with SPI when using rf24 NRF24L01 transceiver with LED matrix MD_MAX72xx

I am currently using Arduino Mega to use a LED matrix and a NRF24L01 transceiver. for LED matrix, I use MD_MAX72xx library. While for the transceiver I use the RF24 library. I am already able to ...
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1answer
38 views

nRF24L01+ Unable to set address

I'm trying to communicate between Arduino Nano and Arduino Uno using nRF24L01+. I tried using RF24 by ManiacBug and TMRH20, but when I open the serial monitor after uploading the Example Programs ...
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74 views

nRF24L01 - leaves out end characters during transmission

This is my Master's code. #include <nRF24L01.h> #include <RF24.h> #include <RF24_config.h> #include <SPI.h> RF24 radio(7, 8); const byte address[6] = "00001"; char text[20] =...
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15 views

nRF24L01 and sim800L not working together

Good day, I would like to ask some help for my program code regarding the problem of nRF24L01 and sim800L. I have the code below #include <Sleep_n0m1.h> #include <Time.h> #include <...
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63 views

NRFlite Question

I'm trying to use NRFlite library to facilitate a simple wireless remote incorporating a 3x4 keypad and nRF24L01 modules. I have it all working well except for one programming puzzle. All of the ...
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32 views

nRF24L01 multiple node ping pong example

I have used simple ping pong example found in maniacbug library. I am using Arduino nano + nRF24L01modules. With this I have one transmitter and two receiver. transmitter sends data on channel zero ...
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1answer
37 views

nRF24L01 with antenna transmitter and receiver

I am trying to use nRF24L01 with antenna in my project, but when I do test with getting start from rf24 master is showing a serial monitor like in the picture abov e. What is the problem here?
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43 views

Unintelligible data transmission from Arduino Mega 2560 to RPi using nRF24L01+

I have a Raspberry Pi 3 and an Arduino Mega 2560 both attached to their own nRF24L01 chip. This is my first time using the nRF24L01 chip, so I copied and modified some demonstration code that I saw ...
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67 views

Trying to communicate data received with nRF24L01 module to API using ESP8266 in arduino UNO

I have been trying to push data into my API from Arduino UNO with ESP8266. The device connects to WiFi but fails in performing the data push after acquiring from remote sensor node with the nRF24L01 ...
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23 views

NRF240L01 code freeze on if statement

I have 2 arduino unos that are talking to each other with a couple NRF240L01 antennas. I have used these before and never had an issue but with this project two of my radio.write commands are causing ...
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1answer
104 views

nRF24L01 using sender as receiver and vice versa with RF24 library

I have two nRF24L01 modules (I tried 2 with antenna and 2 without antenna) paired with their power base module and connected to two different Arduino Mega 2560 boards. I'm able to send from one ...
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30 views

Mesh with star topology

In my project I have an issue. I have more than 2 mesh network with Arduino + nRF240L01 with a star topology (one Arduino is master another 6 Arduino + nRF240L01 are the slaves likewise I can be able ...
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177 views

nRF24L01 communication with Arduino as transmitter and Raspberry Pi as receiver

here are the codes and i don't know why it does not communicate. The arduino should send some example data and the raspberry pi should simply receive the data. Transmitter code (Arduino) #include "...
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1answer
58 views

Lowest latency triggering multiple Arduinos using NRF24L01+

I'm building a rig with multiple DSLR cameras. I need to synchronize the cameras to take a photos with lowest possible latency. The only constraint is we want the ability to address each camera ...
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226 views

How to transmit Float sensor values via NRF24L01 module?

I'm trying to figure out a way to transmit four sensor values: Voltage, Current, Power and consumption but I'm unable to do that. Yet, my syntax is correct... what am I missing? #include <SPI.h&...
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1answer
133 views

Not receiving data from NRF24L01

I'm trying to send data from one Arduino board to another using NRF24L01 connect to the two ends of the two Arduino boards. The Tx blinks in the transmitting end(Arduino board 1) but the receiving end(...
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2k views

How to connect NodeMCU to NRF24L01

I need to connect NodeMCU and NRF24L01. where I'm receiving data from another NRF24L01 Transmission. I managed to connect to a WiFi network but the data receiving is not taking place as expected. Here ...
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3answers
279 views

STM32 and NRF send & receive

This is my send and receive code in STM32 (blue board). But i can't send and receive data . why? I did use Enrf24.h . Enrf24 link: https://github.com/spirilis/Enrf24 send code is: #include <SPI.h&...
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1answer
81 views

Nrf24l01 sending multiple signals [closed]

I have 2 arduino nano and have setup them as a transmitter and reciever. I press a button on the transmitter and the reciever lights up the individual addressable LED sequence as programmed. The ...
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1answer
103 views

Using mills() in place of delay() on relays not getting solid switch over

I know I should post some code that maybe cleaner but really I am just in need of a answer to a problem I seem to run into a lot when using mills() in place of delay(), whilst making a Christmas light ...
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1answer
211 views

How to connect NRF24 receiver and Micro SD Card Module to Arduino UNO

I would like to know how to connect a NRF24 receiver and Micro SD card module to Arduino board. I have already connected the NRF24 module to the arduino board but now i can't connect the Micro SD card ...
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3answers
538 views

How to integrate nRF24L01 to esp8266 nodeMCU? [closed]

I can't seem to integrate an nRF module to my nodeMCU. I just want to verify my code but an error message keeps popping up Below is the sketch: #include <SPI_Class.h> #include <nRF24L01.h&...
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2answers
119 views

3.3 V Arduino Pro Mini and nRF24L01 issues

I have a 3.3 V Pro Mini connected to nRF24l01 as xmtr. The nRF24L01 does not respond to the Pro Mini. Any help will be appreciated. I have attached the print detail output: Transmitter 2 Started ...
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1answer
79 views

nrf24l01+ contradicting itself?

I have recently bought a few of these chips on boards along with some "adapter boards" which supposedly regulates the 5v to propper 3.3v with the required capacitors. So power supply shouldn't be a ...
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1answer
55 views

Can you use a RF remote with nRF24L01 and Arduino?

I recently bought a 10 pack of RF transceivers (nRF24L01). I wanted to know if its possible to pair one with an RC drone controller. I can't seem to find any ways to do this through google. If this ...
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2answers
844 views

How to automatically reset the nrf24l01+ with code?

I have two separate nrf24l01+ connected to two different Arduino UNOs, one as TX and the other as RX. The problem is the connection stops after a while between them. On the Arduino COM screen I have ...
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1answer
103 views

NRF24L01+ - After stopListening, can't write data

Okay so this is the code for my receiver. This is quite confusing so let's dub Receiver = DEVICE 1 and Transmitter = DEVICE 2 DEVICE 1: NRF24L01+, HC-05 (Bluetooth) DEVICE 2: NRF24L01+ So DEVICE ...
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3answers
86 views

nrf24l01 fried when supplying 6.5V to VIN?

I have two Arduino Unos (One clone, one genuine) and I'm trying to make a remote and a base station. Got everything working flawlessly, (Using RF24 library) and the last piece of the wiring was to get ...
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2answers
117 views

Arduino and RF24 library: communication stops after short amount of time

I am using two Arduino Unos, NRF24L01+ transceivers, and a few components as per this site on which I am following the second tutorial on this page: Arduino Wireless Communication – NRF24L01 Tutorial. ...
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2answers
722 views

NRF24L01 writing fail

My arduino uno with the NRF24L01 combination gives failed messages on writing. Using the basic example code 'getting started' literally copied from: http://tmrh20.github.io/RF24/GettingStarted_8ino-...
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1answer
51 views

One shift delay in receiving the response messages when using two nRF24L01 to communicate with each other

When I send "a" from the Serial Monitor of the slave, on the master slave window it will show "car1_place_2_go = a" then it should show on the slave Serial Monitor "a" but it doesn't show up in the ...
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2answers
228 views

how to know the channel i receive information from when i use nRF24L01 to connect between 3 of them

i am using nRF24L01 to connect between 3 of them ( 1 is master and the others are slaves) and i am using nRF24 library , my problem is that when the master receive something from the other slaves and ...
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1answer
294 views

Wireless Communication with NRF24L01+

I have decided to use NRF24L01+’s for my Arduino project for wireless communication. I am using the RF24 library by TMRh20 to talk back and forth. Github Link: https://github.com/nRF24/RF24 I want ...
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1answer
142 views

Problem while connecting two arduino with NRF24L01

I am a beginner in Arduino programming so that program is also little bit lengthy sorry for inconvenience. I have make a program for wire less controlling of a servo motor and LED(7 Nos.) using ...
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61 views

Set up mesh network with RF Transceivers

I would like to set up a mesh network of Arduinos with the following features/capabilities: No master node Arduinos capable of bootloading other Arduinos through RFs Capable of communicating over TCP/...
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1answer
259 views

Trouble with NRF24L01

I've been trying on and off to try and get my nrf24l01's working for some time and they never seem to work. Right now i'm just trying to turn a led on and off over the radio and it isn't working. ...