Fix ESPHome Wi-Fi disconnects, reconnect loops and offline ESP32 nodes. Diagnose RSSI, power save, API reboot timeouts, DHCP/static IP, fast_connect, fallback APs, power problems and router issues.
Fix ESP32 IR blaster range, missed commands and air-conditioner control problems. Covers LED drivers, carrier frequency, raw captures, ESPHome climate IR, AC state frames and practical diagnostics.
Build an ESP32 W5500 Ethernet Bluetooth Proxy for Home Assistant with ESPHome. Includes W5500 SPI wiring, YAML, active connections, PoE options, placement and troubleshooting.
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.
Raspberry Pi Pico W vs ESP32 for IoT and Home Assistant in 2026: Wi-Fi, Bluetooth, ESPHome, BLE proxy, GPIO, ADC, power, performance and which board to choose.
Quick Summary (TL;DR):A reliable ESP32 power failure detector for Home Assistant needs two independent paths: the ESP32 stays alive from a UPS or battery-backed 5 V supply, while a separate isolated signal tells it whether the monitored mains circuit is…
Quick Summary (TL;DR):The BH1750 is one of the easiest ways to give an ESP32 a real lux measurement for Home Assistant. Unlike an LDR/photoresistor, it returns calibrated digital illuminance over I²C, so Home Assistant sees an actual value in lux…
Quick Summary (TL;DR):A serious Home Assistant indoor-air-quality station should not try to turn one cheap “air quality” sensor into everything. Use SCD41 for true CO₂, SGP40 for VOC Index, PMS5003 for PM1, and SHT45 for the primary room temperature and…
Quick Summary (TL;DR):Most PMS5003 + ESPHome problems come from five areas: UART wiring, wrong sensor type, unstable power or airflow, misunderstanding active/passive mode, or mistaking real particulate spikes for bad data. The normal PMS5003 uses 9600 baud. For continuous monitoring,…
Quick Summary (TL;DR):For a dedicated Home Assistant Bluetooth Proxy in 2026, the ESP32-C3 is the best-value Wi-Fi proxy: it is cheap, tiny, widely available, has Bluetooth 5 LE, 400 KB SRAM and more than enough CPU for continuous BLE scanning…