This post will tell you everything you need to know about MQTT communication which will enable you to use it communicate between devices.
Project tutorial by BnBe Club
As a follow up to the room thermometer project, we write a sketch that communicates with an online weather service and displays the weather.
Use a Nano 33 IoT or a MKR WiFi 1010 to access a TI SensorTag to easily build a powerful BLE data logger.
Project showcase by DrGee
Via Telegram, control thermal printers remotely to print out notes, shopping lists, URLs, payments, barcodes, and episode release dates.
Project tutorial by Kutluhan Aktar
Via Arduino Nano 33 IoT and a PHP web application, check whether you have a particular book in your library before purchasing by using ISBN.
Weather station that display temperature, humidity and pressure on your Android phone with Blynk IoT server.
Project showcase by rijk_meurs
Inexpensive/disposable wearable two-way communication system for restaurant/grocery/retail workers
Project tutorial by Ish Ot Jr.
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