Discover the latest updates on the DIY e-reader project, featuring the sleek M5 paper device with an SD card for storing numerous books, a jog button for navigation, and a crisp display! Check out the Github link and try it out.
Learn how to decode and play MP3 audio files on the ESP32 with both headphone support and I2S digital amplifiers. Discover techniques to enhance audio quality and reduce power interference for clearer sound.
Discover the power and functionality of the Ultra Low Power (ULP) co-processor on the ESP32. Learn how to read values from GPIO pins, wake up the main processor, and share data between ULP and the main processor.
In the latest Makercast episode 33, tune in to watch makers share their impressive projects including an 8-bit pipeline CPU with integrated VGA, expertise in Arduino and ESP, nerdy entertainment with gadget creation, and the world's smallest ESP32-development board - the TinyPICO!
Build your own DIY e-Reader with an ESP32, an e-paper display, and some simple coding. This project decodes ePUB files, parses HTML files, and renders texts and images on an e-paper display, while optimizing battery usage.
Learn how to put the ESP32 into deep sleep mode to extend the battery life of your IoT projects. This tutorial will cover methods for waking up the ESP32 using timers, GPIO pins, and touch sensors, along with maintaining state during deep sleep.
Learn about porting an audio monitor to the WiiO terminal, featuring a built-in microphone, gyroscope, accelerometer, light sensor, and infrared emitter. Check out the simple base class used for the display and the efficient template class implementation to swap out between two different display libraries.
Learn how to create a single Arduino sketch for multiple dev boards using inheritance and composition in C++, improving code readability and maintainability. This tutorial demonstrates the principles by implementing a multi-board LED blink sketch and comparing code sizes to ensure efficiency.
Learn how to create a wired USB microphone using a Teensy, I2S MEMS, Electret, and dynamic microphones. Compare their audio quality with a shop-bought USB microphone and discover what's inside it.
Check out some interesting gadgets, including a Wio Terminal, a TTGO display, and a massive e-paper display, as we test new stereo amplifier boards in a Bluetooth speaker project.
Learn how to create a wireless microphone using ESP32 and Bluetooth Hands-Free Profile (HFP). Although the audio quality isn't perfect, the project pushes the ESP32's capabilities to their limits, resulting in an effective wireless speakerphone.
Learn how to transform a battery-operated desk fan into a rechargeable one using a power bank and some simple modifications.
Learn how to create a version 2 of an I2S stereo amplifier board using KiCad in this engaging tutorial. Find out how to set up design rules, import symbols and footprints, generate the PCB layout, and add wiring and custom board outlines.
Find out how GitHub Co-Pilot's AI impressively handles a blink sketch and Wi-Fi setup in an Arduino project!
Learn how a seemingly harmless USB power bank can be used to hack a computer, showcasing the dangers of plugging in random devices and the importance of being cautious with computer security.
Celebrate the journey of a tech YouTuber reaching 5000 subscribers, sharing their favorite projects, and offering insights into the channel's viewership demographics and revenue. Watch some hidden gems and get a sneak peek into the upcoming project ideas!
Learn how to create a weather display using the LILYGO 2.7-inch ePaper Plus Module, featuring step-by-step instructions on programming in PlatformIO, designing an enclosure in Fusion360, and utilizing deep sleep mode for long battery life.
Learn about the real-world range of ESP-Now devices, with experiments showing a range of up to 500 meters using long-range mode in outdoor settings. Discover the trade-off between range and bandwidth and analyze the data collected during walk tests.
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.
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.
Check out the latest mailbag with cool electronics, including a laser galvo scanner, iPad displays, audio amplifier PCBs, and even wake-word detecting microphones!