I made my electricity meter smart for <10€ with ESPHome, an ESP8266 and a TRCT5000 IR sensor : r/homeassistant
Power Meter Pulse Sensor | MySensors - Create your own Connected Home Experience
Power Meter Pulse Sensor | MySensors - Create your own Connected Home Experience
Power Meter Pulse Sensor | MySensors - Create your own Connected Home Experience
Getting Started with MySensors and Home Assistant - YouTube
Battery Powered Sensors | MySensors - Create your own Connected Home Experience
Amazon.com : Velocomp PowerPod V3 High Accuracy Black Cycling Power Meter (for Road, Mountain, Time Trial, Gravel, Cross Bikes) (PPV3) : Sports & Outdoors