Arduino Stack Exchange
Arduino Stack Exchange

Questions tagged [wireless]

Wireless refers to the technology allowing the transfer of information between two points that are not physically connected.

Wireless technologies allow the transfer of data between two points that have no physical connection, i.e. through electromagnetic waves. Traditionally, those physical connection are made in copper wires hence the term "wire-less".

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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 players) to be wireless. Since the best quiz players…
Brian G.
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Programming many Arduinos simultaneously with a wireless broadcast

I will have many microcontroller-based devices which will be independent from each other, but all will run the same program. I would like to upload a program to all of them at the same time with a wireless broadcast. Ideally the user would plug in…
MGA
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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 -> transmitter ) ) ( ( receiver -> DRV8825 edit…
Jasper
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Basic Serial Transmission Protocol

I have a small piece of code here that I hope to run on Arduino. Basically what this code is doing is, it takes a nibble from the user, appends a startbit to it, and transmits the code through a transmitter module. The receiver end receives the bits…
Jonathan
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Wi-Fi module 5 GHz

What is a Wi-Fi module for an Arduino that works on 5 GHz? The ESP8266 - doesn't support 5 GHz according to: Re: 802.11AC 5GHz Why can't ESP8266 operate in 5 GHz since 802.11N is supported my own experiments.
Hryhorii Liashenko
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Arduino IDE Based Data Logger - Stops Running

I have created a data logger that writes to a MicroSD on a user defined interval. The data logger also has the ability to use an xBee unit to transmit the data received to a base station. This is a link to the code and pictures of the data…
Alex Bohleber
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Is it possible to create an electromagnetic wave using PWM?

What would be the simplest way of making an Arduino emit EM waves using PWM (or without)? Theoretically, oscillating a current through a wire would result in an electromagnetic wave, but I don't know if this is possible using an Arduino and if so,…
DividedByZero
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How do I set the DHCP pool for an ESP-WIFI-MESH?

I'm building a mesh with ESP32 dev kits (ESP32-DevKitC V4) using the ESP-IDF VS Code extension and the ip_internal_network example project. The code for the example, common project components, and the API is linked. When the mesh nodes power on and…
diomed
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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) (Lets assume this bluetooth is BT1) At command…
Kunal Kataria
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433 MHZ connection between two Arduino (nano,uno) fails after some time

The goal of this part of my project is to establish a wireless connection between an Arduino nano and an Arduino uno. For this I use 433 MHZ receiver and sender. The nano sends, the uno receives and prints. I have working code and the connection…
Niklas
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Uploading Arduino code, OTA, via connected ESP8266-12E running Esp-Link

1. A short preliminary introduction I'm deploying a small network of three MEGAs connected trough an RS-485 bus. Each MEGA is connected to up to 16 push-buttons (wall-mounted) and two relay-module (2 x 8-SSR; located close to the MEGA). The…
Damiano Verzulli
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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 connect it to an arduino- and then to use certain…
mjsxbo
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Are there any detail examples of Si4463

Recently, I bought two Si4463 chips, but I don't know how to use them. It seems complex. I'd like to know if there are any examples of an Si4463 used with an Arduino?
Enhao Lan
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Getting RTK-precision GPS with arduino devices like NavSpark?

In trying to learn how to create a reasonably precise 3d model of my (very hilly) property, I stumbled across a product called Navspark, which appears to be a $22 arduino-compatible development board, with an RTK-capable (and RTKlib-compatible) GPS…
Autumn
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Communication between two Bluetooth modules of two Arduinos

I am designing a home automation project. I want to control different home appliances through GSM. I am designing it in such a way that each apparatus is connected to an Arduino and bluetooth module. There is a master unit with Arduino, Bluetooth…
sreedevi s
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