Schlagwort: Multimeter

  • Measure voltage and current with the Tiny V/A Meter

    Measure voltage and current with the Tiny V/A Meter

    Reading Time: 2 minutes

    Measure voltage and current with the Tiny V/A Meter

    Arduino Team — June 3rd, 2020

    Measuring voltage with a multimeter is easy enough, and current is a bit harder, but reading both values simultaneously can be a challenge. If you’re tired of having to replug or find two meters, then look no further than Karl Kristian Torp’s palm-sized Tiny V/A. 

    His Arduino Nano-based unit takes input from a power supply via a female barrel jack connector. This supplies the load through a male connector output, and also powers the Arduino, an IN219 sensor, and a 0.96” OLED display. Everything is housed inside a 3D-printed case.

    A single capacitive touch buttons allows you to easily navigate Tiny V/A’s menu and change settings like sensor range and refresh rate. Additionally, it can even powered over USB as needed for an expanded voltage range.

    More details on the project are available in Torp’s Instructables post.

    [youtube https://www.youtube.com/watch?v=cLXND8Y6g_Y?feature=oembed&w=500&h=281]

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    Website: LINK

  • Versatile multimeter made with Arduino Nano

    Versatile multimeter made with Arduino Nano

    Reading Time: < 1 minute

    Versatile multimeter made with Arduino Nano

    Arduino Team — February 12th, 2019

    If you ever wondered about building your own multimeter, YouTuber Electronoobs shows us just how to do so with an Arduino Nano.

    Aside from the Nano, he’s using a 128×64 OLED screen to display stats and battery level, and a 16-bit ADC for precise measurements. Power is provided by a small onboard LiPo battery, and he’s even included a charging module to help keep things topped off. Everything is housed inside a custom 3D-printed case. 

    The device doesn’t just measure voltage, resistance, and current, but is capable of reading capacitance and inductance as well—measurements that you wouldn’t necessarily expect on a commercial meter. If you’d like to create your own, the schematic and code are available on Electronoobs’ site.

    [youtube https://www.youtube.com/watch?v=L6PJSht1oZc?feature=oembed&w=500&h=281]

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    Website: LINK