meter

Arduino project Stereo Peak Program Meter

Arduino project: Stereo Peak Program Meter using arduino

Metering – Instrument Project Ideas / By

Previously, we introduced the Arduino’s analog-to-digital converter (ADC) in detail, looking at successive-approximation A-D conversion and how it’s the best compromise between speed and cost. This time, we start putting some of that theory into practice by building a stereo peak-program meter. Our Peak Program Meter (pictured above) takes audio from any phone or tablet.

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Arduino Fart O Meter

Arduino Fart-O-Meter

Metering – Instrument Projects, Projects / By

Arduino Fart-O-Meter Project Innovation in electronics often emerges from playful experimentation, and this project—though humorous in concept—demonstrates practical use of wireless communication and sensor integration. The Arduino Fart-O-Meter is essentially a system designed to measure methane emissions (commonly associated with human flatulence) and transmit the data wirelessly to a receiver unit for visualization. Project Overview

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Arduino quit smoking meter

Mint-Sized Success Meter (quit smoking!) with Arduino

Ideas, Medical – Health based Project Ideas, Metering – Instrument Project Ideas / By

There comes a time in life to put childish things behind and give up nasty habits. Some, like smoking, can be damn hard without constant encouragement. It was time for me to combine my favorite hobby with my driving goal and make this: The Quit Success Meter! For my other Arduino contraptions, take a look

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Power Meter using Arduino

Power (Energy) Meter using Arduino

Metering – Instrument Projects, Projects / By

Part 1.  Analog Front-End. Opto-Isolator. Looking at the Power Quality Analyzer display, I was wandering, if there is any error in the measurement results, introduced by transformer. Overall THD picture doesn’t change much, suspiciously drawing same chart in the morning and in the evening, when electrical grid load significantly differs. Obviously, to estimate effect of

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Audio VU Meter using Arduino 1

Audio VU Meter using Arduino

Metering – Instrument Projects, Projects, Sound – Audio Projects / By

Biasing AC input using resistor divider and scaling up / down if necessary; Sampling fast and accurately using direct access to Control Registers of ADC and Timer1; Subtract whatever was added at step #1 from result of Analog / Digital conversion and Square; Average / accumulate, filtering following VU specification; Sqrt – take square root,

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Audio VU meter with Extra wide Dynamic Range 69 dB using Arduino schematic

Audio VU meter with Extra wide Dynamic Range 69 dB using Arduino

Metering – Instrument Projects, Projects, Sound – Audio Projects / By

O’K, after having some fun with stereo version of the VU meter I described in my previous blog-post, now it’s time to do a serious stuff. Studio grade VU meter !!! 24 steps, equally spaced every 3 dB, covering Extra wide Dynamic Range from -63  up to  +6 dB.  Single (mono) channel this time, no messing around,

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