Adafruit Solder:Time II DIY watch kit

Calculator watches are making a comeback, but microcontroller watches never go out of style. With this easy-to-solder real-time watch kit from SpikenzieLabs, create your own watch. The kit includes a unique laser-cut acrylic casing to protect the watch while providing a sleek look. Four individual acrylic parts are crafted to fit the internal PCB, battery, and switch seamlessly. A Velcro wrist band for adjustable comfort is also provided.

Assemble the Solder:Time II by soldering the PCB and stacking the acrylic components, secured with the included screws. Designed primarily as a wristwatch, its versatility allows it to double as a badge or even a desk clock. Increased hackability opens up endless customization. The onboard ATmega328P microcontroller, a staple in Arduino models, lets you reprogram the watch using your Arduino IDE software.

The upgraded display features four 5x7 LED matrix modules, creating a 7x20 matrix of 140 LEDs. This enhanced display allows you to showcase a variety of information, including time, date, scrolling messages, graphics, and special characters. Equipped with a piezo buzzer, the watch has an alarm function and can emit sounds for custom programming and games.

Features: Sleek laser-cut acrylic case, a straightforward soldering process, standalone functionality without a computer, an onboard Dallas DS1337+ Real Time Clock for precision. The jumper pad offers an always-on option, ensuring the watch remains functional, while maintainability is ensured with visible labeled programming and I2C pads. The clear casing provides a view of internal components.

This DIY soldering kit demands assembly, yet its simplicity makes it ideal for beginners. Necessary tools include a soldering iron, solder, and diagonal cutters. The kit offers a Solder:Time PCB with all required electronics, a laser-cut casing, four screws, a Velcro-type wrist band, and a CR2032 battery. Comprehensive instructions facilitate the process.