Mqtt

Home Assistant — Setting Up for Advanced Projects Read This First The projects on this site involve editing Home Assistant configuration files, installing apps, and working with ESPHome devices. None of it is particularly difficult — but there are a handful of things you need to understand and set up before you start, or you will eventually break something and not know how to fix it. This page covers everything. Do it once, do it properly, and the rest becomes straightforward. ...

Victron MPPT Solar Monitoring via ESPHome BLE — No Cloud Required Overview Most Victron MPPT tutorials either use the official VRM cloud platform or a USB-to-serial cable. This guide shows a completely different approach: reading Victron SmartSolar MPPT 100/20 data directly via Bluetooth Low Energy (BLE) using an ESP32 and ESPHome, feeding it into Home Assistant entirely locally — no Victron account, no cloud, no cables required. ...

What Is It? The board sold on AliExpress as “ESP32 Arduino LVGL WIFI&Bluetooth Development Board 2.8" 240×320 Smart Display Screen with Touch WROOM” has become something of a community favourite. It is widely known as the CYD — Cheap Yellow Display — named for its yellow PCB. For under £10 delivered it gives you: ESP32-WROOM-32 (dual core, 240MHz, 4MB flash) ILI9341 2.8" TFT LCD, 240×320 pixels, 16-bit colour XPT2046 resistive touchscreen RGB LED LDR light sensor SD card slot USB-C programming and power The display quality is genuinely impressive for the price. It ships running an LVGL demo that shows what the hardware is capable of. ESPHome support is solid and well documented. ...

LilyGO TTGO T-Display Solar Monitor with ESPHome Overview The LilyGO TTGO T-Display is a compact ESP32 board with a built-in 1.14" ST7789V colour TFT display. This guide covers flashing it for the first time and configuring it with ESPHome to display live solar and house power data — pulling Victron MPPT figures from MQTT and house consumption from Home Assistant. ...