How to make an Arduino Voltmeter As you may well know, Arduino’s analog inputs can be used to measure DC voltage between 0 and 5V (when using the standard 5V analog reference voltage) and this range ...

Voltmeters aren’t terribly expensive, but it’s always more fun to build your own devices. YouTube DIYer Educ8s builds a cheap voltmeter for less than $10 using an Arduino and a voltage sensor ...

The voltmeter has a fixed measurement range from 0 to 100 VDC, the only switches on the board are for powering it on and a hold button, which freezes the value currently being shown in the three ...

Also keep an eye on the self-consumption of the DC voltmeter used with the setup (for me, it’s around 20 mA). It’s almost been six weeks since I’ve looked at an Arduino-based DC DVM concept, but ...

But what if the Arduino Uno was released in 1980? You’d probably get something like [ElectroBoy]’s 8051-based Arduino Uno. Close-up shot of the 87C752, an 8051 with EPROM.

Arduino enthusiasts and makers looking for a project to keep them busy this weekend may be interested in a new Arduino ... including the voltmeter he based this off. Watch this video on YouTube ...

Build a Battery Tester. An Arduino can be used to test the life of any battery with less than 5 volts, Boxall says. So, for a quick way to see how much juice your AAA, AA, C, or D batteries have ...

But a company called ArcBotics has created an Arduino-based robot called "Sparki" that can be used—and programmed—by anyone. You don't have to assemble it yourself; ...