Raspberry Pi: time-series dashboards with InfluxDB + Grafana
The self-hosted dashboard stack: InfluxDB stores sensor time series, Grafana graphs them. Install, wire an ESP32's MQTT feed, retention included.
Tag
#mqtt
12 tutorials
ESP32: hosted MQTT brokers vs self-hosting
Compare EMQX and HiveMQ free tiers against Mosquitto on a Raspberry Pi, wire an ESP32 to each, and pick the right broker for your home.
ESP32: long-term air quality with the BME680 (baseline tracking over MQTT)
Track BME680 gas resistance over days, survive the 48-hour burn-in, and publish air quality trends over MQTT so your room gets a real baseline, not a guess.
ESP32: connect to Home Assistant two ways (ESPHome and MQTT)
Wire an ESP32 sensor into a self-hosted Home Assistant: flash it with ESPHome from the HA UI, or run native firmware and publish MQTT discovery. Both paths, one tutorial.
ESP32: TCP sockets in depth, the protocol your MQTT rides on
Every packet your ESP32 sends over WiFi goes through a TCP socket. Three-way handshake, WiFiClient, WiFiServer, the stuck connection gotcha, TCP_NODELAY.
Raspberry Pi: install Home Assistant the right way, with backups and automations
Install Home Assistant OS on a Raspberry Pi, set up the integrations (MQTT, ESPHome, Hue), build a GUI automation, and recover from a bricked install with a full backup.
ESP32: LoRa to MQTT gateway, one-channel bridge from off-grid to Wi-Fi
Build a single ESP32 + SX1278 LoRa gateway that bridges off-grid LoRa packets to your home Wi-Fi MQTT broker. Sender subscribes, receiver publishes, one channel only, and a real gateway disclosure.
ESP32: build a home sensor hub with MQTT and Node-RED
The complete home sensor network: ESP32 publishes to MQTT, Raspberry Pi runs Node-RED and a dashboard. Multiple sensors in multiple rooms.
Pico W: publish MQTT messages from MicroPython over Wi-Fi
Connect a Pico W to Wi-Fi and publish sensor readings to an MQTT broker from MicroPython. The pico equivalent of the ESP32 MQTT tutorial.
ESP32: publish MQTT messages to a broker
Send sensor data over MQTT from an ESP32 to a broker, and subscribe from another device. The pub/sub pattern that runs most home automation.
Raspberry Pi: run Node-RED for visual automations
Install Node-RED on a Raspberry Pi and build a visual automation flow. The tool that ties together MQTT, sensors, dashboards, and notifications.
Raspberry Pi: install and configure Mosquitto MQTT broker
Set up a local MQTT broker on a Raspberry Pi so your ESP32s and other devices can publish and subscribe without depending on a cloud.