ESPHome pulse_meter vs pulse_counter for Utility Meters
ESPHome pulse_meter vs pulse_counter for electricity, water and gas meters: low-flow accuracy, debounce, pulse totals, conversion formulas, ESP32 PCNT limits and working YAML examples.
ESP32 Fan RPM / Tachometer with Home Assistant & ESPHome
Quick Summary (TL;DR):You can monitor the real speed of a 3-wire or 4-wire DC fan with an ESP32 and ESPHome by reading the fan’s tachometer / RPM output. On standard PC-style fans, the tach wire is typically an open-collector output:…
ESP32 Fan RPM / Tachometer with Home Assistant & ESPHome
Quick Summary (TL;DR):You can monitor the real speed of a 3-wire or 4-wire DC fan with an ESP32 and ESPHome by reading the fan’s tachometer / RPM output. On standard PC-style fans, the tach wire is typically an open-collector output:…