ESP32 Blog (75 posts)
Dive into comprehensive tutorials, project guides, and expert insights about ESP32, IoT, and embedded systems development.
Elecrow ESP32 Miner Review - A CYD with USB-C and a Case
Hands-on review of Elecrow's $15 ESP32 Miner. Same ILI9341 panel as a stock CYD, with USB-C, an included acrylic case, and a few exposed JST headers. Arduino IDE and ESP-IDF starter configs included.
Reflashing the Guan Sen WiFi Irrigation Controller with ESPHome
How I reflashed the Guan Sen 2-pump WiFi irrigation kit (Tuya CB3S / BK7231N) with ESPHome via LibreTiny - including the GPIO map, the LibreTiny interrupt quirk, and an auto-off safety timer that actually saves your greenhouse.
Elecrow CrowPanel E-Paper with ESPHome & LVGL (4.2" and 5.79")
How to drive the Elecrow CrowPanel 4.2" and 5.79" e-paper displays with ESPHome and LVGL using a custom external component. Includes a minimal setup and a full weather dashboard with OpenWeatherMap.
How to Use a Multimeter - A Practical Guide for ESP32 & Electronics Makers
Learn how to use a multimeter to test voltage, check continuity, measure current, and debug your ESP32 projects. A hands-on guide with real maker examples.
Types of Multimeters - Which One Do You Actually Need?
Learn the different types of multimeters (digital, analog, clamp, auto-ranging) and find the best one for electronics, ESP32 projects, and hobby work. Budget to pro picks compared.
CrowPanel 2.1" ESP32 Rotary Display Review – The Smart Home Knob I Actually Enjoy Using
Elecrow CrowPanel 2.1 inch rotary display review: ESP32-S3, 480×480 IPS, ESPHome + LVGL setup, Home Assistant integration, and 3D-printed case guide.
Best ESP32 Camera Module - OV2640, OV5640, OV3660 and OV7670 Compared
Find the best ESP32 camera module for your project. Compare OV2640, OV5640, OV3660 and OV7670 on image quality, night vision, specs, prices and real-world performance.
Introducing ESPHome LVGL UI Designer: Visual UI Builder for ESP32
Free web-based drag-and-drop UI designer for ESP32. Create beautiful interfaces with 19+ LVGL widgets, no coding required. Export production-ready YAML for ESPHome.
Elecrow ThinkNode M1 vs M2: Meshtastic LoRa Transceivers Compared
Hands-on review and comparison of Elecrow's ThinkNode-M1 (nRF52840) and ThinkNode-M2 (ESP32-S3) Meshtastic LoRa devices. Unboxing, features, display comparison, battery life, and real-world usage.
ESP-LED-03: Wide Voltage Audio-Reactive WLED Controller (5–24V)
ESP-LED-03 adds a single DD4012SA component so the controller can drive 5–24V LED strips while keeping the same compact 40mm width (PCB length increased to 77mm).
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