Revamped Audio PCB Walkthrough: Fixing Mistakes & Enhancing Functionality Learn how to modify a custom PCB for an ESP32 walkie-talkie project, including exposing spare GPIO pins, freeing up the DAC pin, saving GPIO pins for the microphone and amplifier, and wiring up the shutdown pin on the amplifier for low power mode. 07 January 2026
Reviving a Broken iPad: Transforming it into a Magic Mirror with Raspberry Pi Zero Learn how to transform an old iPad 1 screen and a Raspberry Pi Zero into a Magic Mirror with this step-by-step guide! Enhance your home with this unique, DIY upgrade. 07 January 2026
ESP32 Audio DMA Settings Explained - dma_buf_len and dma_buf_count Learn how to choose ideal parameters for dma_buf_count and dma_buf_len when working with I2S audio and DMA, exploring the impact of these values on CPU load, latency, and memory usage. 07 January 2026
Record & Playback Audio on ESP32 SD Card: Step-by-Step Guide & Demo Learn how to use the ESP32 to record and play WAVE files to and from an SD Card with ease, using the Arduino framework. 07 January 2026
ESP32 Walkie-Talkie: DIY Audio Magic Discover how to create your own Walkie Talkie using an ESP32, I2S microphones, and a 3W amplifier board with this step-by-step guide. Explore code, schematics, and more to customize your Walkie Talkie project! 07 January 2026
The Mysterious Case of the Disappearing Noise - ESP32 Walkie Talkie Project Discover the solution to removing noise in a walkie-talkie project by using power filters and ground pins. Watch the experiments and see the noise reduction in action! 07 January 2026
ESP32 Audible Noise When Using WiFi Discover the mystery of the audible noise in ESP32 boards during Wi-Fi transmission and explore potential solutions to tackle the interference issue in this walkie-talkie project. 07 January 2026
ESP32 Walkie Talkie - Part 1 - Fusion 360 case design Join in on the fun of creating a walkie-talkie with Fusion 360 in this video, showcasing a mix of skill and creativity that is sure to inspire. Don't miss the full build in the next video! 07 January 2026
ESP32 Audio Monitor using TFT_eSPI (TTGO) Learn how to port an M5Stack Core2 Audio Monitor for use on any ESP32 with a TFT screen, by utilizing a TTGO board. Find the modified code on GitHub and modify it for your preferred board. 07 January 2026
M5Stack Core 2 - Audio Input Explore the audio capabilities of the M5Stack Core 2, and learn about the potential impact of the plastic case and differences between the PDM and PCM microphones. Discover how to set up the I2S config, manage audio processing, and create a stunning audio visualizer. 07 January 2026
M5Stack CORE2 - Can't remember why I got this, but it looks nice! Hey guys! So today, I'm testing out this really cool app. It's pretty interesting - I think it could be really handy if you're into tech stuff. Let's dive in and see what it can do! 07 January 2026
Getting started with Raspberry Pi Pico - MicroPython Learn how to get started with Raspberry Pi Pico by soldering headers, writing codes, and building a classic blinking LED project in this tutorial. 07 January 2026
High-Res AS5048 Magnetic Rotary Encoder DIY Learn how to create a custom magnetic rotary encoder using an AS5048 sensor and a 3D printed enclosure, greatly improving the accuracy and gameplay of an Asteroids game controller. 07 January 2026
February Mailbag - we've had our first mailbag. Dive into the contents of the first mailbag, featuring a variety of linear regulators, DC to DC converters, ESP32 modules, microphones, preamps, A2D converters, and more! Get ready for some exciting new audio projects and computer vision experiments. 07 January 2026
Crimping crimping - I've been doing a lot of Dupont crimps! Get ready to groove with this YouTube video featuring a funky music compilation that will have you dancing in no time! 07 January 2026
Laser Projected Asteroids: ESP32 Reinvents Classic Arcade Game! Learn how to create a classic Arduino ESP32 Asteroids game with laser projection, including a tour of the system hardware and a look at its firmware and game engine. Watch a demonstration and comparison of fonts, as well as an overview of the audio output. Dive into the schematics and try out the game for yourself! 07 January 2026
Coming soon - ESP32: Asteroids with Lasers Get ready to dive into an in-depth discussion on cutting-edge technology and stay updated with the latest trends in this highly engaging YouTube video! Don't miss out on this dose of tech inspiration! 07 January 2026
Build Your Own DIY Laser Show: Easy Steps & Amazing Results! Learn how to create your own laser show using a laser galvanometer, MCP4822 DAC, and an ESP32 module. Discover the process of building and programming the circuit, along with improvements that can be made for a more advanced system. 07 January 2026
3D Printed Game Controller Designed in Fusion 360 Learn how to design and build a custom game controller using 3D printing, Fusion 360, and ESP32 components in this step-by-step guide. 07 January 2026
ESP32 Audio: I2S & Built-In DACs Explained Learn how to utilize ESP32's built-in Digital to Analog Converters (DACs) for outputting audio and arbitrary signals at high frequencies, along with a step-by-step guide on configuring the I2S peripheral for using DAC channels. 07 January 2026
Fusion 360 3D Printed Case for my TCR Tester (or M-Tester) Learn how to design and 3D print a protective case for a TCR tester with Fusion 360 software. Get a step-by-step guide to create the perfect custom enclosure with added features, such as a slider switch for battery disconnection. 07 January 2026