Questions tagged [wireless]
Wireless refers to the technology allowing the transfer of information between two points that are not physically connected.
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Teensy3.2; 4.0 wireless audio nRF24L01 - delay increases over time
At first there is almost no delay(between them), over a few minutes there is a delay of around 1 sec.Accidentally the SCK of the nRF24L01(transmitter) got disconnected, reconnected it back and the ...
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How to send a large amount of data via LoRa
I'm trying to implement a LoRa communication between two devices (master and slave). I studied two modules that seem to be interesting RFM96WE and SX1276. From the code provided as an example (below), ...
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RF Keyfob single button code
I'm making a project where a 2 channel RF keyfob (433Mhz) controls an led using arduino nano. As for the hardware everything works and I have tested it with the example decoder code and it works fine. ...
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I am trying to connect ps3 controller to Arduino mega using usb host shield, but it isn't getting?
I tried various method from YouTube and also debugged it. It shows that ps3 controller address was set to local Bluetooth address, after that when I try to connect, it shows that it is receiving ...
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Arduino Uno stops accepting command from PS3 Wireless controller?? although it remains connected!
so I was trying to control a bot wirelessly with the help of ps3 controller and USB host shield, i am using Arduino UNO as micro-controller. I was able to connect PS3 controller with Arduino and ...
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how to detect when a transmitter is turned off?
Using the nrf24l01 wireless module I want to control a led with the sketch below.
The transmitter automatically sends data at intervals of one second continuously and when the receiver counter reaches ...
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Unwanted Wi-Fi Jamming by ESP8266
I bought an ESP8266-01 module. I attempted to upload following code onto it.
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
}
void loop() {
// put your main code ...
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Understanding HC-05 and HC-06 usage
I am looking to make some wireless motor controllers, and am going to use an Arduino connected to an HC-05 module as a master controller, with a potentiometer as the speed controller input. There will ...
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Wirelessly (but fast) transfer STEP and DIR output from Arduino to stepper driver
Very short version:
Looking for a way to wirelessly get STEP and DIR signals (only those two signals) from an Arduino to a DRV8825 stepper driver about a meter away:
Arduino -> STEP and DIR IO pins ...
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Communication code between nrf24l01's suddenly not working. Hardware is fine
I specifically had saved code for the purpose of checking the connection, but it doesn't seem to work anymore.
All the examples from this simple tutorial work, so it can't be a hardware issue.
Maybe ...
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Is it possible to extract the firmware of an Arduino BLE or IoT board wirelessly?
I've looked at previous questions regarding sketch extraction and know that it is possible to extract the hex code from an Arduino board using avrdude from the command line.
However, I want to see if ...
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Decode rf remote signals with ESP32 or node MCU?
I'm trying to decide my rf remote signals using ESP32 or node MCU. I have tried with Arduino and was successful but for some reason it is not working on either ESP32 or node MCU even using the same ...
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nRF24L01 +pa +lna link does not communicate
I’m trying to create a link between two nRF24L01 units. Each nRF24L01+-based module (purchased) is connected to Arduino Nano on a custom-designed PCB.
The printed wiring is per the hardware ...
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How do I switch between while loops before the current loop finishes? IR Remote + LED's
I have a project that requires rotation of a tank tread. I've simulated LED's to go off in a rotation using an IR Remote. I want to stop the clockwise rotation halfway through so I can immediately ...
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Problem communicating Using Nrf24l01+pa+lna, I am receiving 00 Hex
I am trying to build a wireless switch. At one end, I have Arduino Uno connected to Nrf24l01+pa+lna module. While at the other end there is Arduino Nano connected to Nrf24l01+pa+lna and a relay. I ...
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How do I set up bluetooth to wirelessly control servo's connected to an arduino from my PC?
I have been working on a project that includes two servos, one is on X axis the other is Y, the Arduino takes my cursor's X,Y coordinates over a Visual C# program and translates them through the ...
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Sending a JPEG from one Arduino to another
I've got an Arducam OV2640 which takes a picture as a JPEG that I'd like to send to another Arduino using a pair of nRF24L01 wireless transceivers to eventually display it on an SSD1351 OLED.
...
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rfm69 on M0 Express... init() doesn't work
I have already connected succesfully the rfm69 on my Feather M0 Express... but I cannot do it again.
The connections are (in the order of the rfm69):
Vin -> 3V
Gnd -> Gnd
En -> (nothing)
G0 -> 9
...
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What wireless protocols can be used with arduino?
Before you close this saying it's not related to programming. It is related to programming since i'm using it and asking about libraries.
What are the common types of communication protocols and their ...
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Understanding NRF24L01 specifications
I was reading this tutorial about the NRF24L01 and came across a few terms which I did not clearly understand.
It uses the 2.4 GHz band
Does this refer to the frequency of the EM waves that the ...
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Wireless playstation 2 remote not connecting up to arduino
I am trying to connect my wireless playstation 2 remote up to my arduino but I am facing one problem. Whenever I restart my program (by clicking the red button) the PS2 remote's dongle blinks at the ...
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Ardunio wireless voice transmission
I made a project based on calling with gsm module and arduino and now i want to transmit to voice wirelessly to my bluetooth earphone which module should i use for this purpose.
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What NRF24L01 module is this?
I received my NRF24L01 Module today but I'm having a hard time finding any resources about this particular combination of modules!
https://imgur.com/a/HrzpvdR
I tried searching up the v200 1812A but ...
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Sending Strings from NRF24L01 to app
I want to send pushbutton status from the nrf24l01 module to the app named nrfConnect. I could only find libraries that allow me to send float values. How could I send String values to the app? Thank ...
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How to Fix mouse cursor lag on voice & movement based head mouse in wireless setting?
For my head mouse project which is based on the voice recognition module V3.1 for left click, double click, right-click operations, I am facing a problem. I am using 433Mhz Radio Frequency one-way ...
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How do I set up an Arduino to be a wireless HID?
The question below describes how to set up an Arduino as an HID (Human Input Device -- like a keyboard, mouse, etc.). How can I set up an Arduino as a wireless HID?
I'm flexible as to the wireless ...
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how to implement AES in LoRa Module with Hardware Flow control using ESP8266?
I am working on project where I have to do AES encryption of plain text received through normal UART port of ESP8266 create a cipher text and sending it to LoRa module (EByte E32 868T30D) through ...
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Problem communicating with GSM module which is a Fona 3G from adafruit
My issue is fairly simple to describe but I have no idea what the problem could be. So I got my FONA 3G and immediately after taking it out of the box, I connected the battery and I wired up my FTDI ...
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Wireless Bluetooth USB HUB using Arduino nano
I have the following problem/idea:
I have a electronics workbench and a separate PC desk. Now I have a USB HUB on the workbench, but it doesn't properly work, because the USB-cable to the pc is too ...
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NodeMCU Server side cannot send things to client side - multiple clients attached
I technically need your help, when I am working on my project, I found out that my server-side cannot send data to the client-side, my server-side is made with WiFiServer(80) so it is when my client-...
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Arduino-compatible wireless technology which can be suitable for transmitting data
Introduction
I've been meaning to build a vehicle using arduino components and LEGO. I have a mechanical clamp built with arduino which will be locked on top of a custom LEGO build (It should be made ...
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Serial communication by bluetooth hc-05
i am making a ultrasonic radar using stepper motor and ultrasonic sensor , and displaying the output over a software(processing 3) which looks like a radar ppi on display ...is it possible ot replace ...
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How to transfer serial data or plot wirelessly on an arduino?
I have an arduino uno and an accelerometer connected reading vibrations. I want to be able to send the serial data or serial plot wirelessly from the arduino to any program(recommendations will be ...
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Which board to use for wireless communication of small packages? [closed]
I was hoping to get your advice on what Arduino boards to look at for a project I'm working on. The project involves two separate boxes in different rooms of my apartment (~ 5-10 feet away from each ...
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Arduino Bluetooth upload problem HC-05 v4.0
I upload code into arduino nano using a self-made PCB with bluetooth using this method. I was initially using Arduino Nano (chinese Clone, the one with CH340G) and Bluetooth module HC-05 (version 3.0) ...
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Establishing wireless comm. between PC and arduino pro micro to exchange speech and gyro data
I have a client project to make a wireless head-mounted mouse. What wireless module should I use so that I can exchange data between my laptop and the arduino pro micro through the USB port like a ...
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Arduino encrypted Radio communication
Is there any way or library to communicate two Arduino devices with encrypted connection using modules NRF24L01 or "433Mhz RF" ? Similar encryption like CCMP in Wi-Fi network.
user62180
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RF24 library commands, channel, and address
I'm trying to use the RF24 library for wireless communication.
However, it appeared that this library does not have "help" option.
There was a keywords file but it did not explain what it does.
I ...
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SD Card and Lora module arduino uno
Background: When working on the 2 modules separately they were working perfectly.
Problem: In the code attached we tried integrating them but Lora wouldn't receive any data unless we commented out ...
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Is there way to wirelessly connect a arduino drone‘s camera?
Is there way to wirelessly connect a arduino drone‘s camera and stream to a set device from 10 km away?
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Is it possible to transmit radio signal with cheap 433Mhz transmitter as strings and receive it with an RTL-SDR
I have these Arduino transmitters and receivers.
They are very common. I am just trying to transmit a "Hello" Message using this code.
#include <RH_ASK.h>
#ifdef RH_HAVE_HARDWARE_SPI
#include &...
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Arduino digital pin status not transmitting via NRF24L01 where as analog pin status is getting transmitted ,Why?
I am currently working with a project using NRF24L01 which I integrated with my Joystick so that I can make it wireless.While transmitting the information in my Joystick to the receiver only analog ...
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Can't connect my ESP-12F to WiFi with my Arduino Uno
Recently I bought this wifi adapter for my IOT projects that I connected to my arduino uno that seems to not working.
I have tried with the arduino ESP8266WiFi library with RX connected to pin 0 and ...
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WiFi or Bluetooth to communicate between several Arduinos and a Raspberry Pi
So I want to set up a network of outdoor sensors (temperature and humidity) connected to an Arduino (and at some point a second or third Arduino further away with its own sensors). Then I'd like this ...
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Ultra Long Range (200-500km) Arduino Communication using a Gibson Girl
I came across this article on Hackaday showing a simple AM transmitter sending a morse code tone 700km!
I'm looking into a EPIRB for myself while deep in the bush / outback hunting or camping, just ...
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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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How to achieve active 4G LTE communication?
I'm not sure if this is correct place to post this, if not PLEASE redirect me to the proper page, as this matter is quite pressing to me.
My entire day was spent researching different methods of ...
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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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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 ...
user54261
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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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