Questions tagged [wifi]

For questions concerning Wi-Fi connected IoT devices and protocols for Wi-Fi communication. Use the [wireless] tag for any other wireless protocol - this tag is specifically for Wi-Fi (IEEE 802.11.x).

Use this tag for questions that are about the Wi-Fi protocol and devices connected to a Wi-Fi network.

Consider the question check list if your question fits the tag. You can also look at the example questions. If this tag doesn't fit your question have a look below at somehow related tags that might fit your question better.

Question checklist

  • Is the question about the protocol itself or does it specifically require disambiguation through the tag?

  • Is the question not about any wireless protocol or mobile data networks (cellular networks).

  • Does the question describe clearly what the issue is?

Example questions

Not what you are looking for?

  • Use for questions about any wireless protocol.

  • Use for the low power, high range 802.11ah protocol.

  • Use for questions about setting up and configuring networks for your IoT devices in general.

145 questions
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What is the simplest programmable IoT device that can connect to Wi-Fi?

I am trying to build a cheap asset tracker that can be powered by a battery pack. All I need the IoT device to do, is to connect to known WiFi network access points. I have access to the backend system that manages the WiFi access points. I…
rams
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5 answers

When to use Wi-Fi over Bluetooth or vice versa in an IoT system?

Basically when it comes to IoT, the two main communication methods which come to my mind are either Bluetooth or Wi-Fi. I know that there are others as well like ZigBee, Z-Wave but I would like to stay at either Wi-Fi or Bluetooth as they are…
Bence Kaulics
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What factors to consider when selecting an integrated wifi MCU for a low powered edge device?

The motivation for this question comes from the fact that some time ago I created a simple proof of concept (PoC) IoT edge device using a microcontroller and a CC3100 Wifi network processor. One of the problems with this prototype was that the…
Mahendra Gunawardena
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4 answers

Is it possible to commercially sell a Wi-Fi IoT product that DOESN'T use cloud?

If I wanted to use my phone to control a simple Wi-Fi connected device that just turns the light on or off, or a simple temperature gauge, why don't I just communicate directly with the device instead of going through a cloud? No data persistence or…
18
votes
4 answers

How can I easily configure Wi-Fi on a smart device without a screen?

I'm making an IoT device that will serve a web app over WiFi which can be accessed to control it. I would like to make it easy to set up. For example, the easiest way I can imagine is as follows; all it would need is a phone or similar with NFC…
Jayy
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18
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2 answers

How to implement Wi-Fi for a headless IoT device?

Recently I purchased a TP-Link HS100 smart plug which I configured using an app and all is working well. Now I am trying to understand the underlying software and hardware architecture for such an implementation. Based on simple Google searches, the…
Mahendra Gunawardena
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5 answers

Is there a way to control my lights from my Linux desktop?

I have just started investigating smart lights. I am interested in using some Wi-Fi sockets in some lamps in my office to automate the lights. I am curious if there is a way to turn my lights on from my PC, and ultimately turn them on when my Linux…
Scorb
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2 answers

What is a good way for an IoT device to receive its network settings?

I'm in the process of building an IoT device using ESP8266. The device will eventually contain a couple of motors, and I would like to control these motors using MQTT. I would like to make the device as cheap as possible, so I would like to avoid…
16
votes
1 answer

ESP8266 fast HTTP GET response rate

While starting programming my ESP8266 to get continuously changing data (car position) from a server, I encountered a problem: I can't get the ESP8266 to receive the data from the server more than 3 times/second. The data rate would be preferably…
16
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2 answers

How can a device get the SSID and Password of my Network without WPS?

I'm studying ways to make an IoT device access an user´s wifi network. I know about the WPS way, where the device 'broadcast' a signal and the router, after being commanded to listen, 'receive' it and give the device it's access. There's also the…
Eric Akira
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5 answers

Do all Internet connected Things use the same "Application - TCP - IP - Hardware" stack to communicate?

I am not particularly internet savvy, and IoT technologies are especially confusing for me. I was reading this Stanford white paper on internet structure. In Diagram 2, it shows a representation of the software "stack" that a computer (PC) would use…
BestMillimeter
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1 answer

Connect to device at home network remotely

I am trying to figure out if it is possible in any way for me to remotely connect to a device on my home network, but remotely. Scenario: My entertainment system is connected to the home network, and every now and then when I'm at work (50 km away)…
Aeseir
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13
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2 answers

Is MQTT scalable with 1000+ clients?

Scenario IoT device (currently IPv4 device) that sends via TCP socket a payload to a server once per day. The server has a public IP address, the device is behind a router/NAT. I'm going to use a module based upon ESP8266 (i.e. Olimex one) Goal The…
Mark
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13
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3 answers

802.11 action frames send and receive in software

Is it possible to gain access to 802.11 action frames TX/RX from software? There's a proprietary protocol based on vendor-specific action frames called ESP-NOW for ESP8266 and ESP32 chips, and I'd like to try to implement it on a Raspberry Pi. It…
13
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2 answers

Use a Particle Electron with Wi-Fi while in development

Totally new to IoT, here. I got the new Particle Electron cellular IoT device. I used up 5 Mb in like three hours. I have no idea what took up all that data. That is the monthly limit so no I have to wait another month to use it or spend more money…
Sam
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