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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Modified Mesh networking using nrf24l01
I am trying to make a mesh network of three nrf24l01 nodes in which all three are transceivers, such that all three are in a line. The modification I want to make is that if two end nodes are not able ...
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Void value not ignored as it ought to be
im trying to build an rc plane using arduino nano and nrf24l01 as receiver but im having some issues in the code
it has error on the line
done = radio.read(joystick,sizeof(joystick)); which says ...
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Incorrect data being received on RX of NRF24L01P
I am running a setup of two NRF24L01P's on homemade code where the TX sends an analog signal fed through a standard pot, and the RX simply prints out the signal. But the RX seems to be getting ...
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Unable to compare char from radio (RF24)
The code below is receiver code using nRF24L01. In the loop section I'm comparing the char that was being sent from the Arduino transmitter. In this case the char array says "I'm off" just like the ...
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How can I use the NRF24L01 modules without a library?
The datasheet is too intimidating for me, and I dont want to use the libraries available. Hence, I am looking for some clarity on this matter.
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Problem with using multi-node nRF24l01+ with Arduinos
I have 3 nodes in my system. One centralNode and two sensor nodes (right and left).
Sensor nodes transmit data to the centralNode and receive from it.
centralNode may transmit to both nodes and ...
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Use SPI and I2C in the same circuit (ATtiny85/84)
There is a previous question about this same topic here, but it does not answer my question.
I want to use a generic I2C OLED 128x64 px display and an SPI RF24 radio in the same sketch. I know that ...
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nRF24l01+ Outputting Garbage Values [closed]
I just purchased a set of 10 nRF24l01+ modules with a breakout board that looks like this:
Note: This is the nRF24l01+ chip, not a clone Si24Ri. Also, I'm using an Arduino Mega.
I'm following the ...
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NRF24L01 integrated antenna exposed out of the box
I'm going to try my hand at making a few sensors that are to report status to a central server. To make them wireless, I'm going with nRF24L01 modules. I intend to enclose the sensors (Arduino Mini ...
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Multiple arduino Wireless communication
I would like to know what device and model to use for an application where I will have 1 arduino as a master micro controller waiting to receive data from 5 slave arduino microcontrollers.
The Master ...
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NRF24L01+ Issues antenna
I have 2x NRF24L01+ communicating but they are unreliable. It doesn't matter if they are right night to each other or 100ft away. For some odd reason when I place my hand on the antenna it work ...
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Is it possible to connect NRF24L01 to localhost in laptop without wifi router?
I want to send data from arduino to my localhost port:8080(with ipython notebook) via modul NRF24L01 without WiFi router. Is it possible? If it possible, how to do that?
Thank you...
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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 <...
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Library using another library
I'm writing library for smart home arduino DIY project.
i want to use another library(not written by me).
here is the code:
boiler.cpp
#include "Boiler.h"
Boiler::Boiler(int pin)
{
_pin = pin;...
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Not sure I'm understanding pipes for NRF24
I've started working with the NRF24 library for some fun little side projects. I have only gotten through some basic tests but I'm starting to look at ways to tinker with the code. I have more ...
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How can I store the received data from nRF24l01+ module in an array (code in description)?
This is my sample RX code for 4 Tx and 1 Rx nRF24l01+ modules. I want to store all the data received from 4 pipes into an array (recArray).
#include <SPI.h>
#include <nRF24L01.h>
#include ...
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Can I compile a sketch for my attiny85 without an arduino board?
I have a lot of Raspberry Pi's laying around, so I want to use those to program my attiny85 chips. The problem is that most of the code examples, libraries, and documentation out there assume you're ...
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Why does this sketch give MPU FIFO overflows?
I'm transmitting this program over an NRF24l01, data from mpu, and I'm getting a FIFO overflow. Im not sure what the problem is but it gives me a lag when I put it on processing so I know the problem ...
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arduino + mpu6050 + nrf24l01 >>>>>>>>>>>>nrf24l01 + arduino ( Not running fluently)
this is my setup: I have an arduino uno + mpu-6050 + nrf24l01 all attached together and am transmitting data from that mpu-6050 to another arduino with an nrf24l01 attached to it. I got the arduinos ...
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Powering Arduino Mega 2560 from a Raspberry Pi Usb
I have a Raspberry Pi B+ running 7x24. I have to connect an Arduino Mega 2560 to its USB. The Arduino has only one nRF24L01-PA-LNA powered from its 3V3.
Can I power the Arduino from the Pi's USB?
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How to send sensor data from Arduino through NRF24L01 to Raspberry Pi
I am able to send text from the Arduino wirelessly to RPi. I am now trying to send the sensor data I'm measuring to the Pi. This is what I have below:
int moisture = A0;
int temp = 3;
//Skipping ...
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Arduino Nano nRF24L01+ DFPlayer Mini SPI Problem
I'm working with an Arduino Nano board clone (CH340) on wireless control of DFPlayer Mini, transceiver sending a Struct variable with MachinePrefix (just in case), sound type (I have more folders by ...
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Communication between 2 nRF24l01s and 2 Arduino unos
I am having a logical error that I can not figure out with the communication. I am communicating fine with the two boards such that I can send and receive data. Code to my Transmitter and Receiver. ...
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Microcontrollers with built in HID support
I am trying to build a wireless gamepad for which i am using NRF24l01 module for my wireless need and for Sending data to computer i need an mcu which support to act as hid device. So far, i got ...
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RF24 Network and Payload
i struggle to figure out the max payload for the RF24 Network library without payload fragmentation.
It uses a NetworkHeader with the Attributes from_node, to_node, id, type and reserved.
This must be ...
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What is the principle of scanner
I find a 2.4GHz scanner in this web . I want to do same thing in 433 Mhz with SI4463. But I fail to understand it's principle. Who can explain it ? Thanks.
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RF24Mesh master-base node communication delay
I'm trying to build a mesh network using 4 nRF24L01 modules directly connected with Arduino Uno where 1 module is master node and the rest are base nodes.
The workflow is exactly as follows
I'm ...
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RF24 communication between Leonardo and Micro not responding
I have Arduino Leonardo and Micro. I can't manage them to communicate via nRF24L01. I made a receiver and sender sketch to test it and can't see any respond. I tested the same code on two arduino nano ...
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MPU-6050 + Arduino Micro + nRF24L01 FIFO overflow!
So I have an Arduino Micro, nRF24L01, and MPU-6050 all attached together and its transmitting information to another nRF24L01 on an Arduino Uno. The problem is that I keep getting FIFO overflow on the ...
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Connection between ATTiny85 and RaspberryPi3 with nRF24L01+
I'm hoping someone can help me since I've been struggling with this all weekend. I've got 2 nRF24L01+ breakout cards and I'm trying to send data from a ATTiny85 to a Raspberry Pi 3.
My setup is (the ...
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Having trouble connect nrf24l01 to arduino micro and arduino uno!
I'm trying to connect a nRF24L01 with my Arduino Micro and Arduino Uno. The Arduino Uno works fine, but it doesn't talk with the Arduino Micro. CE is on pin 7 and CSN on pin 8. I posted the code down ...
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Having problems compiling this code for NRF24l01 on arduino uno and arduino micro
I have the library RF24 and everything in my arduino library but for some reason it's not compiling. I don't know why. I posted the code and also the error message that the arduin IDE keeps showing. ...
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how to communicate MPU-6050 ( on arduino micro) wirelessly using nrf24l01 to arduino uno? [closed]
I have an Arduino Micro and MPU-6050. I'm trying to transfer the data obtained from the MPU-6050 wirelessly to my computer using an Arduino Uno at the other end. I'm not sure how to make this happen.
...
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NRF24L01+ unable to receive data
I have 2 Arduino UNO R3 nodes communicating using NRF24L01+ transceivers with the TMRh20 library.
Setup I have original as well as cheaper but 'compatible' arduinos. One of the nodes uses an original ...
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How to program an nRFL01 RF module that is connected to a pc via a USB to UART/TTL adapter?
In a few of my previous questions I was told that the nRF24L01 RF Module can be connected to a pc using a USB to UART/TTL adapter. After a bit of research I understand that one way to use it is to ...
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Can the EWRF 3022 module be directly connected to the pc totransmit data from the pc wirelessly? [duplicate]
In my project I want to connect my pc to an RF transmitter. The receiver will be connected to an arduino on my robot. However most of the RF modules I looked up couldn't be directly connected to my ...
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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 ...
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What options do I have to wirelessly connect my computer to an arduino?
For my project I have an arduino Uno connected to my robot. I need to control it wirelessly. I have thought of using a bluetooth module , but I need a larger range. Then I thought of using an RF-...
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Trouble connecting Arduino Pro Mini (Atmega328, 3.3V) to nRF24L01 over SPI, receiving all 0 values when I use radio.printDetails();
I am trying to connect my Arduino Pro Mini 3.3V to an nRF24L01 transceiver and cannot see what I am doing wrong. I've checked my wiring a million times because the problem hints there is an invalid or ...
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Arduino UNO with NRF24l01 + touch screen [closed]
I have an Arduino UNO, a NRF24L01 as receiver (receive data from elsewhere), and this touch screen from Adafruit for display and control.
The Adafruit TFT is a shield so it fits the UNO perfectly.
...
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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 ...
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RF24 - Split data in payloads at sender and then rebuild on receiving end
I'm trying to send some data using nRF24L01+ transceivers, but I need to use 8 byte payloads for reliability. The data I'm sending is much bigger than that, so I need to split it into 8 byte packets ...
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Multiple transmitters and problem with ref
There are three Arduinos on a model. Each of them has a DS18B20 Dallas temperature sensor and an nRF24L01 antenna wireless communication. There is also an independent device consisting of an Arduino ...
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Inexpensive way of connecting a lot of modules on a distance
I need to connect a lot (~100) of modules with a computer (Raspberry pi). The modules are based on Arduino micro and are very simple. They will be spread around, but for the two adjacent the distance ...
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nRF24L01+ packet loss caused by Arduino reading and communicating with sensors
I have 2 Arduinos communicating with each other. My problem is that one sends packets every 1.5-2 seconds but the other Arduino does sensor reading and data uploading with a Wifi module, which may ...
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3
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Converting char array to int
I'm trying to use nRF24L01 module to send a messages between 2 arduinos
Transmiter code:
const char text[] = "Hello World";
radio.write(&text, sizeof(text));
delay(1000);
Reciver code:
...
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4
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Reduce 5v Trinket Pro to 3.3v?
Apparently these nRF24L01+ modules need 3.3v, but I've only got 5v Trinket Pros that I'm using.
How can I reduce the voltage to the RF transmitter?
Would a voltage regulator work? Specifically ...
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2
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nRF24L01+ module fried?
I have 2 nRF24L01+ modules that were working fine then...stopped. I'm wondering if I accidentally fried one of the modules.
When I run the RF24 library GettingStarted example, this is the output of ...
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0
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trying to discover other nrf24 modules
Today I started messing with the idea of getting an arduino uno to autoconnect with another arduino uno using the nrf24l01 breakouts.
I dont have a particular goal in mind per se but was just wanting ...
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2
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Difference between Arduino IDE giving me headaches
For some time now I've been playing around with the latest version of Arduino IDE and my UNO and ATTiny with simple 433 RF links with the Manchester Library. It all worked fine, but for my next ...
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