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Programmateur ESP32 avec autoboot (convertisseur USB/UART)
TOMSKI Nov 14,2025
Découvrez ce convertisseur USB/UART avec fonction auto-boot, pour programmer les ESP32 "automatiquement". Ainsi, plus besoin d'appuyer manuellement sur les boutons BOOT et RESET pour programmer vos ESP32, en filaire. Comme toujours, il faudra que les lignes RESET (pin EN) et BOOT (pin IO0) soient chacune dotée de résistance pull-up (10 Kohm, par exemple), pour que cela fonctionne.Le schéma électronique de ce "programmateur d'ESP32 automatique" (passerelle USB/UART) est présenté ci-dessous.À note...
esp32 autoboot programmeur
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How to Build a Simple Audio Spectrum Analyzer with Adjustable Settings
Pavleski Nov 13,2025
 An audio spectrum analyzer is an electronic device or software tool that measures and visually displays the frequency spectrum of an audio signal. It shows the different frequencies present in the signal and their respective amplitudes, typically on a graph with frequency on the horizontal axis and amplitude on the vertical axis. In today's video, I will present you with a very simple way to create an audio spectrum analyzer that, despite its simplicity, has many possibilities for adjustin...
Audio Stereo DIY
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Embedded Ludo
Takacs Nov 12,2025
This project is a complete modernization of the classic board game Ludo, transforming it into a sleek, electronic tabletop experience. It is a fully functional, open-source version from the ground up using an ESP32 microcontroller, custom PCBs, and a 3D-printed enclosure.The board features 108 individually addressable LEDs to represent the game's track, tokens, and a digital die. It maintains the simple, tactile feel of the original with just one button per player for all interactions, while add...
8th Design Contest-Electronic Project 3D printing ESP32
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Commodore CBM PetDisk esp32 clone
FLORIAN-UDVARI Nov 10,2025
petdisk-esp32CBM PETDISK based on Esp32 and MicroSDIntroductionMy fourth PCB design, first (mostly) SMD one to test how ordering assembled PCB from China. Motivation for this was that it's a bit of a pain to order @bitfixer 's Petdisk Max V2 Esp32 from the US, and I've found no alternatives in the EU.https://github.com/yo5ptd/petdisk-esp32
8th Design Contest-Electronic Project
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Strip LED Controller for ESPHome
Nov 09,2025
This PCB allows controlling 7 LED strip channels up to 24V and 10A per channel. I use it to control a RGBCWWW color stripe and a CWWW white stripe with the same device. It also has an input for a push button.I use it with ESPHome but any other ESP32 based firmware should work,
8th Design Contest-Electronic Project DIY USB
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ESP-AirSense SCD30
Quispe Nov 07,2025
Indoor air monitor built on ESP32-WROOM-32, 1.8″ TFT 128×160 SPI (ST7735), and Sensirion SCD30 (NDIR). The SCD30 measures CO₂ in 0–40,000 ppm (typical calibrated band 400–10,000 ppm). Firmware samples every 2–10 s, applies ABC (Automatic Baseline Correction) and supports manual offset calibration (e.g., outdoor ~400 ppm) so you can set a “healthy” target (commonly ≤800 ppm) and derive clear ventilation guidance.On-device UI sh...
8th Design Contest-Electronic Project ESP32 Sensor
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MiniMesh Lite
Altınsoy Nov 05,2025
️ FeaturesMCU: ESP32-WROOM-32LoRa Module: RA-02 (SX1278 / SX1276)Display: 1.3" OLED (I²C, 128x64)GPS Port: External GPS module supported (e.g., u-blox, MAX-M10S)I²C Port: External sensors or peripherals supportedPower: 5V USB / Li-ion BatterySupports Projects:Meshtastic- LoRaAPRS- Other LoRa-based communication systemshttps://github.com/Deeplab-Studio/MiniMeshLite-V1
DIY ESP32
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MEDIC Mini
Arnov sharma Nov 04,2025
Greetings everyone, and welcome back!Meet Medic Mini, a handheld self-diagnostic tool designed to guide users through basic symptom checks with just a few button presses. Whether you're feeling under the weather or just want a quick health triage, Medic Mini offers a fast, intuitive way to assess common symptoms without needing an app, internet, or medical jargon.At its core, Medic Mini runs on an ESP32-C6 paired with a 1.47" Waveshare display, housed inside a custom PCB and a 3D-printed en...
8th Design Contest-Electronic Project 3D printing SLA
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DIY Meshtastic Using ESP32 : Build Your Own Private Off-Grid Network
Joseph Nov 01,2025
Project OverviewThis project delivers a complete, custom-designed PCB solution for building Meshtastic mesh network nodes. Unlike traditional communication methods that rely on cellular towers or Wi-Fi infrastructure, this device creates decentralised, long-range networks using LoRa technology. Multiple nodes automatically relay messages between each other, extending coverage across vast areas while consuming minimal power.The Problem It SolvesStaying connected in remote locations has always bee...
8th Design Contest-Electronic Project meshtastic ESP32
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Xbox Controller with ESP32
Arnov sharma Oct 31,2025
Greetings everyone and welcome back. here’s something I’ve been really excited to share.I’ve been working on a simple but powerful setup that connects an Xbox controller to an ESP32-C6 DevKit over BLE and displays all the input data live on an ILI9341 SPI screen. It started as a way to visualize controller input—buttons, triggers, and analog sticks—in real time. But once I saw how responsive it was, I realized this could be much more than just a visualizer.The real reason behind this build is a ...
8th Design Contest-Electronic Project Arduino ESP8266
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What is Sesame?Sesame is a 3D-printable quadruped robot powered by an ESP32. It runs on 8 MG90S metal-gear servos (two per leg) and features a 128x64 OLED display for a face. It walks, dances, waves, ...
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