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).

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16
votes
2answers
433 views

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 ...
44
votes
7answers
10k views

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 ...
15
votes
3answers
4k views

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 ...
25
votes
5answers
2k views

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 ...
18
votes
4answers
496 views

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 ...
13
votes
3answers
5k views

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 ...
12
votes
1answer
20k views

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, ...
12
votes
5answers
1k views

Is Bluetooth a good enough protocol for “lost my keys” beacons?

Bluetooth beacons for localizing lost objects are beginning to spread. You can locate them using an app on your smartphone (yes, and create an account, share on facebook your objects, ...) with a ...
10
votes
2answers
6k views

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 ...
9
votes
1answer
969 views

Is there any way to access local server from outside without port forwarding? [duplicate]

Situation I need to access an ESP8266's Wi-Fi local server from outside. Like Xiaomi Yeelight (YeeLight Introduction Web Site Link) or LOHAS LED (LOHAS LED Web Site), I have to control it from ...
6
votes
1answer
194 views

What is the working voltage range of a Sonoff Touch?

I would like to replace normal (mechanical) switches at home with Sonoff Touch ones, which I will be able to manage. Today I have this: and by adding the Sonoff Touch I will have that (P1 is the ...