https://gingineers.com/posts/ Recent content in Posts on Gingineers Hugo en-gb Thu, 16 Apr 2026 00:00:00 +0000 https://gingineers.com/posts/ha-foundations/ Tue, 14 Apr 2026 00:00:00 +0000 https://gingineers.com/posts/ha-foundations/ Everything you need to set up in Home Assistant before tackling the projects on this site. Backups, safe configuration editing, essential apps, ESPHome first steps, and what to do when it breaks. https://gingineers.com/posts/victron-ble-esphome/ Tue, 14 Apr 2026 00:00:00 +0000 https://gingineers.com/posts/victron-ble-esphome/ Read Victron SmartSolar MPPT data via Bluetooth using an ESP32 and ESPHome. No cloud, no cables, no Victron account required. https://gingineers.com/posts/sht45-calibration/ Thu, 16 Apr 2026 00:00:00 +0000 https://gingineers.com/posts/sht45-calibration/ Using a saturated sodium chloride solution as a humidity reference standard to calibrate an SHT45 sensor to traceable accuracy — the same method used by professional meteorological instrument manufacturers. https://gingineers.com/posts/wu/ Thu, 16 Apr 2026 00:00:00 +0000 https://gingineers.com/posts/wu/ How to push local sensor data to a Weather Underground personal weather station using HA rest_command and template automation — no cloud hardware required. https://gingineers.com/posts/12v/ Thu, 16 Apr 2026 00:00:00 +0000 https://gingineers.com/posts/12v/ How to run a Synology NAS, router, modem, Raspberry Pi 5, Amazon Echo and ESP32 devices directly from a 12V LiFePO4 solar battery bank — including the Raspberry Pi 5 USB-PD workaround. https://gingineers.com/posts/cyd-yellow-display/ Wed, 15 Apr 2026 00:00:00 +0000 https://gingineers.com/posts/cyd-yellow-display/ Building a live Home Assistant dashboard on a sub-£10 ESP32 TFT display using ESPHome, MQTT and the HA API https://gingineers.com/posts/zigbee-z2m/ Wed, 15 Apr 2026 00:00:00 +0000 https://gingineers.com/posts/zigbee-z2m/ Migrating from Sonoff eWeLink cloud Zigbee to a fully local Zigbee2MQTT setup with a ZBDongle-P coordinator. No cloud, no lag, full mesh visibility. https://gingineers.com/posts/lilygo/ Wed, 15 Apr 2026 00:00:00 +0000 https://gingineers.com/posts/lilygo/ Drive a LilyGO TTGO T-Display with ESPHome to show live solar and house power data pulled from MQTT and Home Assistant. https://gingineers.com/posts/sonoff-esphome-flashing/ Tue, 14 Apr 2026 00:00:00 +0000 https://gingineers.com/posts/sonoff-esphome-flashing/ How to flash Sonoff S20, S26R2 and SV smart plugs with ESPHome firmware using a USB to serial adapter. Get your Sonoff devices off the cloud and onto fully local control.