Want to build a versatile and hackable ESP32-based controller system with lots of useful peripherals and a full assortment of apps to get you started? Then the ESP32 R4ge Pro is for you!
Meet the next generation prototype of the ESP32 Conference Badge, featuring high-fidelity sound and an expanded array of useful peripherals.
A waveform generator is a handy little tool for stimulating and testing electronic components and assemblies. Any work with filters, amplifiers, or other frequency-sensitive designs can benefit from the insights gained through a controlled signal input. Here’s how to make one for about $30.
The Atmel ATtiny85 is capable little 8-bit microcontroller that plays very well with the Arduino ecosystem. It also comes in a compact and maker-friendly 8-pin Dual Inline Package (DIP), operates on 5V, and costs less than two dollars – making it a great option for controlling some WS2812b RGB LEDs (aka “neopixels”.)
The DS3231 Real Time Clock breakout keeps extremely accurate time, has a battery backup, and only costs a few dollars. Combine it with just about any microcontroller, a display, plus a simple stand, and you have a custom precision clock that can sit on your desk and satisfy your timing needs in a visually-unique way.