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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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6 votes
0 answers
668 views

nRF24L01 continuously reading closed pipe

I am testing communication between two nRF24L01 modules. The receiver is getting the transmitted message but is also continuously reading (null) data from a closed pipe? I am using the RF24 by TMRh20 ...
PyNZ's user avatar
  • 121
2 votes
2 answers
2k views

Motor shield and wireless transceiver compete for same pins

I would like to use these 2 components with an Arduino Uno: Arduino Motor Shield R3 nRF24L01 2.4GHz Wireless Transceiver I use Stepper for the motor shield, and SPI + RF24 for the wireless ...
Francois's user avatar
  • 121
11 votes
4 answers
6k views

Choosing wireless tech for lowest possible lag

I am drafting a pub quiz project, where the Referee gives a signal and multiple players push their buttons. The first to push wins the right to give an answer. I want all buttons (referee's + X ...
Sergey Snegirev's user avatar
2 votes
2 answers
3k 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....
Akshay's user avatar
  • 193
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
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
0 votes
1 answer
2k views

How to connect an RF module directly to a PC without using an arduino? [closed]

I know that in xbees i can connect the xbee module directly to my pc using the USB explorer. But I'm using the nRF24L01 RF modules. I want to transmit from my pc, via the RF transmitter to my RF ...
mjsxbo's user avatar
  • 145
8 votes
1 answer
14k views

Increasing payload size above 32 bytes using nRF24L01+

I tried to modify the example in the following page, by replacing the given string with a 56 bytes one after making all the suitable changes to read(), write() and max_payload_size(increased to 64 ...
Naveen's user avatar
  • 193
5 votes
5 answers
9k views

OTA updates for Arduino using nRF24L01+

Is it possible to send OTA updates to Arduino via nRF24L01+ module? Here are my findings: Here is an instructable explaining how to program Arduino wirelessly but this thing uses a BT module which ...
Whiskeyjack's user avatar
4 votes
1 answer
2k views

NRF24L01 only receiving zeros

I'm attempting to transmit very simple data across some NRF24l01 modules for testing purposes, and I've been following a YouTube guide. Here is my code: Trasmitter: #include "RF24.h" #include <...
Wilson's user avatar
  • 41
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
757 views

Connecting Saleae Logic 8 to MISO (pin 12) on Uno 3 w/ NRF24L01+ halts program

I have an NRF24L01+ with the base module (regulates voltage) connected to an Arduino Uno 3. I'm using the tmrh20 NRF24 library and am running one of the example programs. I'm trying to sniff the SPI ...
Brennan Cheung's user avatar
1 vote
1 answer
837 views

Arduino NRF24L01+ arduino to netmf transmit issue

I want to communicate between Arduino Mini Pro (china import) and a stm32f4 running netmf runtime. At the moment I'm able to communicate between SPI1 and SPI2 on the stm32 board. After that I ...
csteinmueller's user avatar
1 vote
1 answer
8k views

NRF24l01 Channel switching

I have a NRF24L01 radio module. The description indicates that it can work in the ISM frequency range of 2.400 ... 2.525 GHz. The channel step is 1 MHz, and there are 125 channels in total. The ...
Антон's user avatar
1 vote
0 answers
5k views

Slower nRF24L01 round trip delay than expected

Short/summary I expected that the round trip delay of a nRF24L01+ would be less than 1 ms. In practice I see around 3 to 5 ms and other sources have similar values. Does anybody know why this round ...
Michel Keijzers's user avatar
1 vote
1 answer
1k views

nrf24l01 (8pin) + adapter board (10pin) oops?

I just got my first arduino boards and have been learning the basics (so I know very little). I got the 2.4GHz NRF24L01+ (this one: NRF24L01+) and along with it a breakout board (this one: NRF24L01+ ...
insaner's user avatar
  • 155
-1 votes
2 answers
5k views

NRF24L01+ PA not working with Arduino Mega (works with Nano)

Full disclosure: I'm a newbie. I've got an Arduino Nano and a Mega, and a pair of NRF24L01+ PA modules (exactly these: http://www.elektrotedarik.com/Images/Urun/11122013173429.jpeg) I'm trying to ...
Can Poyrazoğlu's user avatar