In our current/voltage category you will find numerous useful modules from renowned manufacturers such as Adafruit, Sparkfun and Pololu. These include special voltage regulator modules. Voltage regulators are used to stabilise the operating voltage and compensate for fluctuations in the input voltage - from the mains or a battery, for example. Combine the components available in our DIY electronics shop with your Raspberry Pi, Arduino or other single board computer or microcontroller and add some interesting new functions.