ESP32 Sump-Pump and Flood Monitor with Home Assistant
Build an ESP32 sump-pump and flood monitor with ESPHome and Home Assistant. Track pump runtime, high water, leaks, power loss and failure conditions.
OpenTherm Gateway with ESP32 and Home Assistant
Build an ESP32 OpenTherm controller or inline gateway for Home Assistant. Monitor boiler modulation, temperatures, faults and control heating setpoints safely.
ESP32 Multi-Zone Heating Controller with ESPHome and Home Assistant
Build an ESP32 multi-zone heating controller with ESPHome and Home Assistant. Control room thermostats, zone valves and shared boiler demand safely.
Matter over Thread with ESP32-C6 and Home Assistant: Setup Guide
Build a Matter-over-Thread device with ESP32-C6 and Home Assistant. Covers Thread Border Routers, BLE commissioning, Arduino Matter, IPv6 and troubleshooting.
ESPHome to KNX via Home Assistant: Sensors and Switch States
Bridge ESPHome devices to KNX through Home Assistant: expose ESP32 sensor values and switch states, accept KNX commands, map DPTs correctly and avoid feedback loops.
ESP32 Smart Relay for Home Assistant (ESPHome)
This guide shows how to build a safe ESP32 smart relay (Shelly-style) for Home Assistant using ESPHome (optional MQTT). Includes correct wiring (low-voltage vs mains), relay module selection, GPIO “safe pins”, EMI/noise tips, and example ESPHome YAML for a reliable…
ESP32 PMS5003 in Home Assistant & ESPHome 2026
This guide shows how to connect a PMS5003 (PM2.5/PM10) particulate sensor to an ESP32 using UART, configure it in ESPHome, and display air-quality values in Home Assistant (optional MQTT). Includes wiring, safe GPIO choices, recommended update intervals, warm-up/duty cycling tips,…
INA219/INA226 on ESP32 for Home Assistant (2026)
Quick SummaryThis guide shows how to connect an INA219 or INA226 current/voltage sensor to an ESP32 over I²C, configure it in ESPHome, and monitor battery/solar voltage, current, power and energy in Home Assistant (optional MQTT). Includes wiring, address scanning, calibration…
ESP32 DHT22 ESPHome Home Assistant Guide (2026)
This guide shows how to wire a DHT22/AM2302 to an ESP32, set it up in ESPHome, and get temperature + humidity into Home Assistant (with optional MQTT). It includes the correct pull-up resistor, safe GPIO choices, recommended update intervals, and…
iPhone & Apple Watch the Ultimate Home Assistant Control Panel
If you’re reading esp32.co.uk, you probably already have Home Assistant packed with ESPHome sensors, smart relays, and automations that look like a small engineering project. But let’s be totally candid: a smart home is useless if it takes 15 seconds…