The Ai-Thinker RD-03D is a 24 GHz FMCW mmWave radar designed for multi-target trajectory tracking. Connected to an ESP32, ESPHome can report up to three targets simultaneously, including each target’s X/Y position, distance, speed and angle, then expose everything directly…
The HLK-LD2420 is a 24 GHz mmWave presence sensor that works very well with an ESP32 and Home Assistant through ESPHome. Unlike a PIR sensor, it can maintain presence from both movement and smaller stationary-body movements. ESPHome provides native LD2420…
A standard 4-wire PWM PC fan can be controlled from an ESP32 while its real rotational speed is returned to Home Assistant as RPM. The fan keeps its normal 12 V supply continuously connected, while the ESP32 generates the standard…
For most new ESP32 and Home Assistant projects, the SHT40 is the best value: it is newer, smaller, faster, and consumes less power than the SHT31 while offering slightly better humidity accuracy. Choose the SHT45 when measurement accuracy matters most…
For most Home Assistant rooms, the LD2410 is still the best all-round mmWave presence sensor because it is inexpensive, mature, highly configurable and particularly good at detecting a person who is sitting or barely moving. Choose the LD2450 when you…
The LD2410 is one of the most useful sensors you can connect to an ESP32 for Home Assistant. It is a 24GHz mmWave presence sensor, which means it can detect small human movement and stationary presence much better than a…
An ESP32 AC climate controller is one of the best upgrades you can make to an ordinary infrared-controlled air conditioner. Instead of using the original remote control every time, you can let Home Assistant turn the AC on, change the…
Connect an IR receiver to ESP32, learn remote codes in ESPHome and use them in Home Assistant. Includes wiring, YAML, protocols and fixes.
Home Assistant Yellow is the official expandable smart home hub designed for people who want more flexibility than Home Assistant Green. It runs Home Assistant locally, supports Raspberry Pi Compute Module hardware, includes built-in Zigbee and Thread-capable radio hardware, and…