Build Your Own Custom Bluetooth Speaker with ESP32 & A2DP | DIY Audio Project Learn how to repurpose old iPad speakers with a custom designed stereo I2S Class D amplifier, using EasyEDA for the schematic and PCB layout. Discover how to create a simple Bluetooth speaker using an ESP32 and a stereo amplifier for your DIY audio projects. 14 September 2025
Secret ESP32 Inside Arduino Nano RP2040 Connect! Take a closer look at the Arduino Nano RP2040 Connect, a versatile board that supports Python and contains a 32-bit dual-core Arm Cortex-M0+ processor, WiFi & Bluetooth module, and a six-axis motion controller. Find out how to use the RGB LED, read values from the PDM microphone, and create innovative projects using this powerful, compact device. 14 September 2025
Unboxing Tech Treasures: Laser Scanner, EPaper Display, Audio PCBs & More! Check out the latest mailbag with cool electronics, including a laser galvo scanner, iPad displays, audio amplifier PCBs, and even wake-word detecting microphones! 14 September 2025
ESP32 and GPS Learn how to connect a GPS board to an ESP32 and parse location data using the Arduino framework while walking around. This tutorial also includes tips on troubleshooting serial connectivity with a USB to UART board and a terminal program. 14 September 2025
MicroPython I2S Audio with the ESP32 Discover how to use I2S with Micropython on the TinyPICO board in this detailed tutorial, comparing C++ and Micropython implementations. Learn how to build custom Micropython firmware with I2S support, set up an environment for the project, and use I2S for recording and playing back audio. 14 September 2025
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. 14 September 2025
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. 14 September 2025
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. 14 September 2025
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. 14 September 2025
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! 14 September 2025
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! 14 September 2025
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. 14 September 2025
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! 14 September 2025
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. 14 September 2025
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. 14 September 2025
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! 14 September 2025
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. 14 September 2025
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. 14 September 2025
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. 14 September 2025
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! 14 September 2025
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! 14 September 2025