Clawdmeter is a custom-built desk dashboard powered by the ESP32-S3 that provides real-time monitoring of Claude Code token usage. Utilizing a 2.16-inch AMOLED screen and Bluetooth LE connectivity, the device displays animated pixel art that reacts to usage rates and acts as a HID keyboard for quick command shortcuts via BLE.
This article provides a guide on building a DIY high-end Bluetooth speaker in only 30 minutes using an ESP32 and simple hobbyist components. Using a LILYGO T-Display board, which supports the Bluetooth Classic protocol required for A2DP audio streaming, the project pairs with a MAX98357A module to act as a digital-to-analog converter and amplifier. The setup uses the I2S interface for audio transmission and can even display track information and connection status on the onboard TFT screen. It is an excellent, quick project for electronics enthusiasts looking to repurpose spare parts into a functional, polished audio device.
This article details a $30 ESP32-based room mapper built with a Time-of-Flight sensor and IMU. It features 64-zone 3D visualization, real-time orientation tracking, temporal filtering, plane fitting, and a mapping mode. The project is breadboard-based and doesn't require soldering, but relies on an IMU for heading, which can cause inaccuracies if the device is moved.
This project details adding a wireless Adafruit Feather ESP32 with OLED display to interface with the MightyOhm Geiger Kit, including features like data logging to Radmon.org, web server diagnostics, and various display modes. It covers assembly, software setup, testing, and additional connections to a Raspberry Pi.
The Tuitar is a DIY project using an ESP32 to help learn guitar, featuring tuning assistance, a virtual fretboard, and game modes for practice.
Weather Station designed for the Lilygo T5 4.7 inch Epaper Development Platform. Allows for user-friendly configuration of weather display settings via a web interface.
This article details 7 ESPHome projects that enhance smart home functionality, including washing machine state detection, water leak detection, presence detection, Bluetooth proxy, custom smart speakers, cheap yellow displays, and ePaper dashboards.
The author details their journey from commercial smart speakers like Google Nest and Amazon Echo to building custom open-source voice assistants using ESP32-based hardware, ESPHome, and Home Assistant, highlighting benefits like privacy, control, and cost savings.
This article details a DIY digital barograph project that replaces traditional mechanical barographs with a modern digital solution using a BME280 pressure sensor, an ESP32 microcontroller, and a 128x64 LCD display. It offers advantages like eliminating paper replacement and reducing maintenance.
This article details the creation of a "Now Playing" display for a record player using an ESP32 microcontroller. It leverages a microphone, Shazam API (via Shazamio Python library), and MQTT to identify and display the currently playing track. The project involves hardware setup with a Waveshare display and software development in ESPHome.
