Quick SummaryThis guide shows how to connect an INA219 or INA226 current/voltage sensor to an ESP32 over I²C, configure it in ESPHome, and monitor battery/solar voltage, current, power and energy in Home Assistant (optional MQTT). Includes wiring, address scanning, calibration…
This guide shows how to wire a DHT22/AM2302 to an ESP32, set it up in ESPHome, and get temperature + humidity into Home Assistant (with optional MQTT). It includes the correct pull-up resistor, safe GPIO choices, recommended update intervals, and…
If the ESP32-C3 was the reliable workhorse, the ESP32-C6 is what you pick in 2026 when the project touches Home Assistant, Matter, Thread, or Zigbee. Why? Because it’s one of Espressif’s first “triple-radio” parts that puts Wi-Fi 6 (2.4 GHz…
If ESP8266 was the pioneer and the original ESP32 was the heavyweight champ, ESP32-C3 is the modern workhorse: Espressif’s first big move to RISC-V, built to be an affordable, power-efficient “drop-in upgrade” class for Wi-Fi IoT — but with Bluetooth…
If you’re looking for the true modern successor to the legendary ESP8266, this is it. While the ESP32 family has expanded into multi-core, AI-friendly, Matter-ready chips, the ESP32-C2 was built for one mission: the cheapest, most power-efficient, high-volume Wi-Fi IoT.…
Below is the straight comparison: chips, what they’re for, and which dev boards make sense. If you’ve looked at Espressif’s lineup lately, you’ve seen the shift: “ESP32” is now a family, and the ESP32-C series is the RISC-V branch built…
This guide compares the ecosystem and helps you pick the right S2 option quickly, using Espressif’s official docs. ESP32-S2 is the “USB + Wi-Fi” ESP32: single-core, Wi-Fi only (no Bluetooth), and designed for USB devices, low-cost IoT, and HMI-style projects…
If you’re reading esp32.co.uk, you probably already have Home Assistant packed with ESPHome sensors, smart relays, and automations that look like a small engineering project. But let’s be totally candid: a smart home is useless if it takes 15 seconds…
If you’re reading esp32.co.uk, you probably already have Home Assistant stuffed with ESPHome sensors, smart relays, and automations that look like a small PhD thesis. But none of that matters if turning a light on takes 10–15 seconds of app-fumbling.…
This guide maps the whole ecosystem and helps you pick the right S3 board in 60 seconds. ESP32-S3 is the “modern classic” ESP32 for USB, AI/DSP workloads, and display/camera projects. But “ESP32-S3” can mean a lot of different things: Sources…