Here we design a simple and small project that is portable power supply (voltage regulator). We know that all electronic devices require DC power supplies. And usually at our homes, the AC power ...

All we need to do is apply a voltage in the specified range to get the desired regulated output to the Arduino. A supply voltage of 6 Vdc to 12 Vdc applied to Vin, or RAW will power the Arduino’s ...

For this project, we will be creating a Power Regulator LED Shield Board specifically designed for an Arduino UNO. This shield board will serve two primary functions: Voltage Step-Down from 12V to 5V ...

The Arduino Uno already has a 3.3V pin, but it can only provide upto 50 mA. For my purposes (esp8266), I needed to supply a constant 3.3V with current that could go as high as 170 mA. The Uno's 5V pin ...

You have to pull an extra wire from the sensor’s input voltage to your Arduino’s AREF pin, so you know what the actual voltage at the end of the cable is, so you can estimate the 10-90% range.

Poor quality of power supply can often cause power surges, spikes and voltage fluctuations which causing flickering lights, failure of household electrical devices, interference of TV reception, etc.