The Chug-O-Meter

Isn’t it nice when you can hit two birds with one stone? That’s exactly what we’ve done as we approach both Arduino Day and Saint Patrick’s Day with our version of the Chug-O-Meter! We absolutely loved what the circuit.io team did with their Chug Meter but thought that we could add more to its survivability while surrounded by inebriated merrymakers. To do this we changed the force sensor to regular switche ...

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VINTAGE AMMETER BECOMES PLANT MOISTURE GAUGE

It’s not uncommon to happen across vintage measurement equipment at the local flea market or garage sale. Often with an irresistible aesthetic, and built to last decades, these tools nonetheless tend to be sidelined when modern multimeters are available. [Build Comics] had just such a piece on hand, and decided to repurpose it with some modern hardware instead. The build begins with a Hartmann & Braun 6 ...

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VERSATILE ENERGY METER HAS MULTIPLE FUNCTIONS

If you are dealing with solar or battery power, you might want to have one of these little energy meters built by [Open Green Energy] around. The Arduino-based instrument measures DC voltage, current, power, energy, capacity, and temperature. The range is only up to 26 volts and 3.2 amps, but you could extend that with some external circuitry. Of course, measuring a voltage with the Arduino is old ...

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PKE Meter Geiger Counter

https://youtu.be/VS8lQ5SYb7U I have been wanting to build a Geiger counter for a long time to complement my Peltier Cooled Cloud Chamber. There is (hopefully) not really much useful purpose in owning a Geiger counter but I just love the old Russian tubes and thought it would be great fun to build one. Then I came across the neat instructable by How-ToDo and thought about rebuilding it with so ...

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The E.M.F.Meter

Hello, fellow Makers! In this instructable, I will be discussing my newest and most versatile tool for edcuation: the E.M.F. Meter. This instructable will be covering a lot of steps involving Arduino and Raspberry Pi software. Although resources will be provided, please make sure you have some familiarity with these softwares before tackling this project. Step 1: A Tool for Hands-On Experiments With Electro ...

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ARDUINO PH METER

In this project, we will be making a benchtop pH meter using the gravity analog pH circuit and probe from Atlas Scientific and an Arduino Uno. Readings will be displayed on a liquid crystal display (LCD). MATERIALS 1 - Arduino Uno1 - Gravity analog pH sensor1 - pH probe1 - 20x4 LCD module1 - 158x90x60mm Enclosure1 - Mini breadboardJumper wiresAcrylic sheet (plexiglass)4 - 11mm ...

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Arduino UV Meter using the UV30A Ultraviolet Sensor

Introduction Ultraviolet rays, also known as UV for short are rays emitted by sun. Due to the depletion of the ozone layer, these rays tend to get to extreme levels that could lead to sunburns etc for those under it, that’s why daily and hourly forecast of the UV index is always available to help people keep track and stay safe. For monitoring purposes, why not own a personal UV meter? Today, we will build ...

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Sensirion Presents Pressure-Resistant Mass Flow Meter

The SFM4200 mass flow meter is a new star in the Sensirion range. Thanks to its high pressure resistance, it can be operated at pressures of up to 8 bar and measures flow rates up to 160 slm with a rapid signal processing time of 0.5 ms. It is particularly suitable for gas mixing in medical applications. Sensirion is one of the leading manufacturers of innovative sensors and sensor solutions that millions o ...

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Arduino Milliohm Meter

This is an accurate milliohm meter with a maximum resolution of 0.1mOhm. The design is very simple, the whole assembly can be built in a couple of hours once all the parts are gathered. It is based on a precision current sink and a high-resolution ADC controlled by an Arduino Nano V3. It uses a Kelvin connection with the resistor under test to exclude the resistance of test leads from the measurements. It c ...

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ICOSAHEDRON GLOWS WITH THE BEST OF THEM

Glowables come in all shapes and sizes, and we’re always keen to see the multitude of different ways hackers find to put great masses of LEDs to good use. [cabrera.101] wanted to get in on the action, and whipped up a rather flashy icosahedron. The build uses high-density 144-LED-per-meter strips for the edges, with 60-LED-per-meter strips used for the tubes that connect to the stainless steel ball in ...

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DC Panel Meter using Arduino

Panel meters in regulated power supplies are used to display electrical parameters like voltage and current. Presented here is a circuit to display DC voltage and current of power supplies, including DIY-type ones. Circuit and working Circuit diagram of the DC panel meter using Arduino is shown in Fig. 1. The circuit is built around Arduino Uno board (Board1), current sensor IC ACS712 (IC1), 16×2 LCD (LCD1) ...

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How to Make an Arduino Capacitance Meter

With all the different ways capacitors are labeled, figuring out the values of your capacitors can be challenging. Especially if you don’t have a digital multi-meter to test them. In this tutorial, I’ll show you how to build three different capacitance meters using an Arduino and a couple resistors. After finishing this project, you’ll be able to measure all of your capacitors and label them for future refe ...

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