Summary of Measure voltage and current simultaneously with Tiny VA Meter
This article introduces Tiny V/A, a compact Arduino Nano-based project by Karl Kristian Torp designed to measure voltage and current simultaneously. The device features a 0.96-inch OLED display, an INA219 sensor, and a capacitive touch button for menu navigation. It accepts power via a barrel jack or USB and outputs power to a load through a male connector. The project includes a 3D-printed case and allows users to adjust sensor range and refresh rates easily.
Parts used in the Tiny V/A:
- Arduino Nano
- INA219 high side current sensor
- 0.96 inch OLED display
- Capacitive touch button
- Female barrel jack connector
- Male connector output
- 3D printed case
Makers, developers and hobbyists looking for a way to measure both voltage and current simultaneously may be interested in a new Arduino project published to the official Arduino blog, featuring Karl Kristian Torp’s palm-sized Tiny V/A.
The Arduino Nano based project takes input from the 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.
“There is nothing new about the INA219 high side current sensor. There are plenty of good projects out there that utilizes its ability to measure both current and voltage on a load. I originally got inspired by youtuber Julian Ilett and his “10 Minute Arduino Project – INA219 Current Sensor” video. But I wanted a compact meter with a simpel interface and a 3D printed case – so I decided to make that myself.”
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.”
Source: Measure voltage and current simultaneously with Tiny VA Meter
- What is the main purpose of the Tiny V/A project?
The project measures both voltage and current simultaneously. - How does the device receive input power?
It takes input from a power supply via a female barrel jack connector. - Can the Tiny V/A be powered over USB?
Yes, it can be powered over USB for an expanded voltage range. - What component allows navigation of the menu?
A single capacitive touch button allows easy navigation and setting changes. - Which sensor is used to measure current and voltage?
An IN219 sensor is utilized to measure both current and voltage on a load. - How are settings like sensor range changed?
Settings are changed using the capacitive touch button interface. - What displays the measurements on the device?
A 0.96 inch OLED display shows the measurement data. - What inspired the creator to build this specific meter?
The creator was inspired by youtuber Julian Ilett but wanted a compact meter with a simple interface and 3D printed case.
