electronics esphome esp32 kicad home-assistant pcb

Furnace Monitor — Differential Pressure + Blink Code Detection

November 15, 2024 complete

Overview

Hardware

ComponentPartNotes
MCUESP32
Pressure sensorMPX10DPDifferential pressure, filter restriction
PhototransistorTEPT4400Reads furnace status LED blink codes

Schematic

ESPHome Config

Home Assistant Integration