Tag: mqtt

All the articles with the tag "mqtt".

• CircuitPython Conference Badge with MQTT and Adafruit IO

  Updated: 5 Apr, 2026

  Using CircuitPython with an ESP32 co-processor to build an internet-connected conference badge (PyBadge) with MQTT-controlled name display and NeoPixel RGB color picker via Adafruit IO.

• IoT Holiday Lights

  25 Dec, 2017

  Smart Christmas lights with Neopixel addressable LEDs, MQTT control, Alexa voice commands, and a live Raspberry Pi camera feed — all built on ESP8266 and open-sourced under MIT.

• IoT Protocols: A Few choices

  14 Nov, 2017

  Comparing MQTT, CoAP, and Bluetooth Low Energy for IoT communication — a guide to choosing the right protocol for constrained devices, from Open Source For You Magazine.