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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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21 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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2answers
61 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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8 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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27 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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16 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
24 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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32 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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45 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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0answers
20 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
53 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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22 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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48 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
27 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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0answers
102 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
70 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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1answer
1k 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
184 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
38 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
74 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
121 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
414 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
102 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
69 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
48 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
609 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
63 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
60 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
93 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
547 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
40 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
145 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
249 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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0answers
91 views

Issue in transferring the serial communication data over radio using NRF24L01 and Arduino Uno

I am trying to transfer data recorded by one of my Arduino UNO boards (which is recording temperature data using DHT11) to another board that could be UNO or WeMos D1. The problem is that the UNO ...
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1answer
121 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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0answers
51 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
177 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. ...
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1answer
293 views

Printing transmission data from nRF24L01+

I have a beginner's problem. I have 2 nRF24L01+ devices. They are communicating with each other great, and I can talk with the nRF via SPI. The problem is I want to display, on the serial monitor, ...
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2answers
206 views

Arduino + nRF24L01 + ESP8266 mod

I was wondering if it is possible to connecting two Arduino boards with each other (Uno + Nano) using an ESP8266 mod on one of them and an nRF24L01 on the other board? I have seen lots of details of ...
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1answer
78 views

Adadfruit Trinket software not running on ATtiny85

I have an application that uses a pair of nRF24L01+ as a simple RF link between a camera PC sync output and a set of LED flashes. The important factors are power and low latency - hence the 2.4GHz. I ...
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373 views

NRF24l01+ works only when touching its antenna

I have two simple NRF24l01+ (with range of 200m) and two NRF24l01+ with range of 1km.and two socket adapter. or what I have and I have two good library with names RF24 and RF24-master . problem ...
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0answers
287 views

NRF24L01 one tx many rx

Pipes and Channels...I realize this type of question has been asked to death but I have not yet found a clear answer...the project has 3 or more transmitters each capable of sending to any of the same ...
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2answers
1k views

Powering an Arduino Mini Pro using a CR2032 battery as a remote control

I'm looking into making my own remote control using an Arduino Mini Pro and some RF transceivers. The receiving end won't be a problem, but the remote will. I want to make it as small as possible and ...
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1answer
321 views

Having trouble passing data through RF24

I have three RF24, all of them are connected to one arduino-uno each. The first one has sensors that sends data to the second one then the second one passes it to the third one. The first pass from ...
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0answers
185 views

Problem communicating between Uno's with nRF24L01 modules

I am trying to get 2 Arduino Uno boards to talk to one another using 2 nRF24L01 transceiver modules. I confirmed the wiring was correct and the modules indeed worked by uploading the GettingStarted ...
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1answer
232 views

Need help with nRF24L01 and Arduino decoding and receiving [closed]

A month ago I bought a Chinese drone, remotely controlled by: SM-217-BKT v5 controller, which uses 2.4GCOB-1A transmitter. My idea was to drive a drone with its "memory", I mean: Start the drone and ...
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0answers
1k views

Using signal strength feature of nRF24L01 module

This is a walkie-talkie project and this circuit really worked, voice can be transmitted from one nRF module to another nRF. Additionally, I want to observe how well the signal strength is, by ...
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0answers
102 views

Combining mysensors with SD card (on an Ethernet Shield v2)

I'm trying to combine a MySensors network with the usage of a SD card. Currently I'm working with the SD card reader on the EthernetShield v2. The NRF24L01+ chip I'm using is also using SPI but we ...
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0answers
91 views

R24 Incompatibility with TimerOne on Nano

I am attempting to build a sketch on a Nano which receives a regular pulsed signal from an NRF24L01+ board and uses the time-interval between pulses to generate a regular pulsed output generated by an ...
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1answer
235 views

Error using nRF24L01+ with ATmega328P-PU. Works fine on Uno

I am trying to use a nRF24L01+PA with an ATmega328P minimal breadboard system. I first connected the module to my Uno and verified it with the "scanner" example sketch from the rf24 library, which ...
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1answer
960 views

Sending data by nRF24L01 with Arduino

Can I send data using nRF24L01 with Arduino through multiple pipes? As by using the RF24 library, I can send data through just one pipe and receive on the 6 pipes that nRF24L01 has.