The ESP32 that I went for is specifically the ESP32-DevKitC, which is easy to find, cheap, and compatible with most things ...

The audio component centers around the SS8550 PNP transistor (Q1) which serves as a driver for the passive buzzer (BZ1). This ...

You can build something cheaper and more customizable with an ESP32 or a Raspberry Pi, and that's what I did. It's beautiful, it's easy, and incredibly versatile. If you want to get started, I'll be ...

Adafruit has created a dev board for the Raspberry Pi RP2350 microcontroller that can drive a DVI display, handle a keyboard, ...

Arduino has shrunk the UNO R4 with the Arduino Nano R4 board equipped with the same 48 MHz Renesas RA4M1 32-bit Arm Cortex-M4F microcontroller, but offered in a much more compact form factor. It’s ...

Arduino GPS Tracker Circuit Diagram The Arduino GPS tracker circuit connects three main components: Arduino UNO R3, NEO-6M GPS module, and SIM800L GSM module. This design uses both hardware and ...

There is also support for Arduino IDE, ESP-IDF, MicroPython, and PlatformIO. There is a Getting Started Guide for all Unexpected Maker ESP32-S3 boards, and a GitHub repository, where you’ll find ...

Related area RMT/UART Hardware specification ESP32 devkit Is your feature request related to a problem? When compiling with the newest released core v3.3.0, RMT seems to be finally working correctly, ...

The Uelectronics-ESP32 Arduino Package is a comprehensive suite of tools and libraries designed to empower developers to harness the full potential of the ESP32 microcontroller. This package enables ...

Posted in home hacks Tagged automation, esp32-C3, plants, terrarium, ultrasonic atomizer ← Older posts ...

Posted in Laser Hacks Tagged arduino, high power, laser, laser harp, microcontroller, midi, music, persistence of vision ...

Building on that concept, the next objective was to create an even smaller FM radio compact enough to fit inside an earbud.