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.

Filter by
Sorted by
Tagged with
0 votes
1 answer
2k 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 ...
M.HARTAOUI's user avatar
0 votes
1 answer
401 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> #...
Kishore's user avatar
  • 35
0 votes
1 answer
353 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 ...
weyhei's user avatar
  • 105
0 votes
1 answer
334 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 ...
Rahul Vashishtha's user avatar
2 votes
2 answers
519 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] =...
Kishore's user avatar
  • 35
1 vote
0 answers
364 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 ...
user avatar
0 votes
1 answer
163 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?
Klevis Shkembi's user avatar
2 votes
1 answer
538 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 ...
Faig's user avatar
  • 121
1 vote
0 answers
91 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 ...
samsheen ijas's user avatar
1 vote
1 answer
1k 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 ...
Geordie's user avatar
  • 195
1 vote
1 answer
3k 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&...
user avatar
0 votes
1 answer
4k 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(...
TRomesh's user avatar
  • 135
2 votes
1 answer
10k 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 ...
TRomesh's user avatar
  • 135
0 votes
3 answers
2k 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&...
m-tech's user avatar
  • 103
-1 votes
1 answer
239 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 ...
Ron Needham's user avatar
0 votes
1 answer
1k 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 ...
TRomesh's user avatar
  • 135
0 votes
3 answers
3k 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&...
Jinocide's user avatar
1 vote
3 answers
474 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 ...
Michael Bennett's user avatar
2 votes
1 answer
338 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 ...
Manuel Covas's user avatar
1 vote
1 answer
190 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 ...
KeionBeats's user avatar
1 vote
3 answers
5k 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 ...
paulplusx's user avatar
  • 171
-1 votes
1 answer
438 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 ...
Denise's user avatar
  • 99
0 votes
3 answers
585 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 ...
Allenph's user avatar
  • 101
0 votes
4 answers
2k 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. ...
shanearthur's user avatar
1 vote
2 answers
3k 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-...
Mart's user avatar
  • 113
-1 votes
1 answer
201 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 ...
zangin's user avatar
  • 13
1 vote
2 answers
1k 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 ...
zangin's user avatar
  • 13
0 votes
1 answer
886 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 ...
M.Schindler's user avatar
0 votes
1 answer
426 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 ...
SREEKe's user avatar
  • 1
1 vote
0 answers
168 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/...
Ben Gubler's user avatar
2 votes
4 answers
3k 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. ...
Jake Blocker's user avatar
2 votes
1 answer
2k 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, ...
Mr Chips's user avatar
0 votes
2 answers
316 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 ...
Hakeem AL- khatyb's user avatar
-1 votes
1 answer
124 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 ...
Smifff's user avatar
  • 1
2 votes
0 answers
1k 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 ...
amin's user avatar
  • 131
0 votes
2 answers
4k 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 ...
MortenMoulder's user avatar
0 votes
1 answer
878 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 ...
Vainicz's user avatar
3 votes
1 answer
6k 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 ...
user175079's user avatar
2 votes
0 answers
158 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 ...
imacbest's user avatar
  • 121
1 vote
1 answer
528 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 ...
Confused's user avatar
1 vote
1 answer
1k 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.
Basem Osama's user avatar
0 votes
1 answer
4k views

RadioHead library nrf24 sending and receiving struct data problem

I am using RadioHead library for the communication between nrf24l01. I am sharing the snippet of my code below because the code is too huge. The problem i am facing here is on the receiver side i am ...
KarmaCoding's user avatar
1 vote
2 answers
812 views

Arduino with nRF24L01

I am using nRF24L01 with Arduino Nano and Mini. I feel they are very useful when we want to connect multiple Arduinos together. In market we can buy Arduino with WiFi and Bluetooth, why don't they ...
Rahul's user avatar
  • 137
1 vote
2 answers
4k views

nRF24L01 not communicating

I have been using two nRF24L01 to communicate with each other using a simple Arduino Uno Board. It worked for 5 days and now all of a sudden it is now working. I tried to change the modules and the ...
JavaEnthusias's user avatar
0 votes
2 answers
3k views

NRF24L01 receiving even if no data sent

I am using nRF24L01 to communicate between two micro controllers. Both are Arduino Uno. The question i have here is , even if i do not send any data from sender to receiver , the receiver device is ...
JavaEnthusias's user avatar
1 vote
1 answer
2k views

Using Raspberry Pi to Receive Float from Arduino using NRF24L01

Good day. I've been learning on how to transfer data from Arduino to Raspberry Pi wirelessly using NRF24L01 based on the following reference: Raspberry Pi 3 Tutorial 14 – Wireless Pi to Arduino ...
foxfaisal's user avatar
0 votes
0 answers
2k views

CRC usage when ack disabled in nRF24L01

In the documentation of the nRF24L01 library I use (library), the CRC state (on/off) and length can be set or get. It seems to be used for auto ack, but when I switch auto ack off, what is the use of ...
Michel Keijzers's user avatar
0 votes
1 answer
463 views

Multiple SPIs on one Arduino [SOLVED]

Setup I have 2 Arduinos... each has two 2.4 GHz nRF24L01+ transceivers (so in total 4). Per Arduino, one is only for transmitting, while the other is for receiving (to prevent the need for switching ...
Michel Keijzers's user avatar
1 vote
1 answer
422 views

More missed messages with longer cables with nRF24L01+?

I am using nRF24L01+ 2.4 GHz transceiver. When I connect them directly (with SPI pins 10..13 from Arduino) to the adapter board for the nRF24L01 I get occasionally errors (meaning the receiver does ...
Michel Keijzers's user avatar
1 vote
1 answer
285 views

Two nRF24L01 radios per Arduino

Due to the results of my previous post (Slower nRF24L01 round trip delay than expected) I found out that it will be quite difficult to reach my latency requirements. I am thinking about using my own ...
Michel Keijzers's user avatar