Upgrading At Least One Component Of A TI Calculator

Even though Texas Instruments were the first company to produce an integrated circuit and a microprocessor, their success as a company in the 60s and 70s was not guaranteed. At the time there wasn&…

Prison TV Gets Simple Speaker Mod

American prisons are strict about television use. Typically they’re only to be used with headphones, and their enclosures need to be transparent so they can’t be used to smuggle goods. …

A Solari Mechanical Digital Clock Hack With A Little Extra

[Alfredo Cortellini] was perusing an antique shop in Bologna, and came across a nice example of a late 1950s timepiece, in the shape of a Solari Cifra 5 slave clock, but as the shop owner warned, i…

Adding Wireless Charging To The Switch Lite

The Nintendo Switch is a monstrously popular machine, and it’s had no difficulty raking in the bucks for the Japanese gaming giant, but there’s no denying that it’s technologicall…

Exploring An Aftermarket LED Headlight Retrofit Kit

There’s plenty of debate about drop-in LED headlight bulbs, especially when they’re used with older reflector housings that were designed for halogen bulbs. Whether or not you personall…

Hacked IKEA Air Quality Sensor Gets Custom PCB

Last month we brought word of the IKEA VINDRIKTNING, a $12 USD air quality sensor that could easily be upgraded to log data over the network with the addition of an ESP8266. It only took a couple o…

How To Modify Your Car Stereo For Bluetooth Or Aux-In

If you’re an automotive enthusiast of taste, you can’t stand the idea of fitting a janky aftermarket stereo into your nice, clean ride. Flashy, modern head units can spoil the look of a…

Clever PCB Brings Micro USB To The Arduino Uno

Even with more and more devices making the leap to USB-C, the Arduino Uno still proudly sports a comparatively ancient Type-B port. It wouldn’t be a stretch to say that many Hackaday readers …