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1. How to Choose the Best ESP32 LVGL Development Board

   This article provides a comprehensive guide on choosing the best ESP32 LVGL development board, covering key features like RAM, CPU performance, display interface, and touch support. It also discusses different ESP32 variants and their suitability for LVGL projects, along with pros and cons, pricing, and sourcing tips.

   2026-01-27 Tags: esp32, lvgl, development board, embedded gui, microcontroller, display, touchscreen, psram, esp32-s3, arduino, esp-idf by klotz
2. Building An Escape Room Lockbox With The ESP32 Cheap Yellow Display (CYD)

   This project details building an escape room lockbox using an ESP32 and a 'cheap yellow display' (CYD). It uses batteries to power a solenoid latch and includes custom software.

   2026-01-16 Tags: esp32, cyd, cheap yellow display, tft, touchscreen, arduino, escape room, lockbox by klotz
3. 2.8-inch round IPS display features mini HDMI input, CNC aluminum housing

   Elecrow has launched a 2.8-inch round IPS display with a mini HDMI input and CNC aluminum housing, suitable for various applications like creative displays and industrial control interfaces.

   2025-11-29 Tags: display, elecrow, hmi, smart home, touchscreen by klotz
4. ESP32-Cheap-Yellow-Display

   Documentation for the ESP32-2432S028R, nicknamed the "Cheap Yellow Display" (CYD), a 2.8" LCD with touchscreen. Includes setup, examples, troubleshooting, and community links.

   2025-07-06 Tags: esp32, display, lcd, cyd, cheap yellow display, touchscreen, arduino, esphome, diy, electronics, open source, github by klotz
5. ESP32-S3 Smart Audio devkit integrates 1.8-inch round touch LCD, microphone, optional battery and speaker box

   Waveshare has released an ESP32-S3 development kit featuring a 1.85-inch round touchscreen, Wi-Fi, Bluetooth, microphone, and optional battery/speaker. It's aimed at audio-focused projects like smart speakers and HMIs.

   2025-03-31 Tags: arduino, iot, assistant, esp32-s3, smart speaker, touchscreen, waveshare by klotz
6. Pebble Time 2 relaunches as Core Time 2 with touchscreen, priced at $229

   The long-awaited Pebble Time 2 is relaunching as the Core Time 2, featuring a 1.5-inch color e-paper display, metal frame, heart rate monitor, and a significant upgrade with a touchscreen. It will be available for pre-order at $229 with a 30-day battery life and is set to ship in December 2025.

   2025-03-19 Tags: core time 2, pebble time 2, smartwatch, touchscreen, battery life, eric migicovsky, pebbleos, e-paper display, metal frame, heart rate monitor, watch complications by klotz
7. LVGL with ESP32 Cheap Yellow Display Board (ESP32-2432S028R)

   In this guide, you'll learn how to use the LVGL (Light and Versatile Graphics Library) with the ESP32 Cheap Yellow Display board (ESP32-2432S028R). This development board features a 2.8-inch TFT touchscreen LCD, microSD card interface, RGB LED, and more.

   2024-05-30 Tags: lvgl, esp32, cheap yellow display, esp32-2432s028r, graphics library, tft display, touchscreen, arduino, hacks by klotz
8. Human-Interfacing Devices: HID Over I2C | Hackaday

   Discusses HID over I2C, an underappreciated HID standard used in laptops.
   Explains that I2C-HID is used for touchpads, touchscreens, and sensor hubs.
   Distinguishes I2C-HID from non-HID I2C devices and explains its benefits.
   Describes the author's experience with using I2C-HID for a laptop touchpad project.

   2024-04-20 Tags: hid, i2c, hid over i2c, touchpad, touchscreen, sensor hub, laptop, usb, microsoft, specification. by klotz

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