sensor • Tech Projects

A Microcontroller Based Turbidity Meter using AtmelMega32

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Introduction Low-Cost Turbidity Meter for Underdeveloped Countries Our project is a collaboration with an independent research project being conducted by senior civil and environmental engineering student James Berg. The goal of this project is to create a low cost turbidity meter for use in under developed countries. Real laboratory turbidity meters can cost over $1000.Our

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CUAUV Voltage Sniffer Using Atmel Mega32

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Introduction The Cornell University Autonomous Underwater Vehicle team (CUAUV) is an undergraduate engineering team that designs and builds a fully autonomous, robotic submarine. Over the past year, the team – of which both Manoj Lamba and Ian Wang are members – has had a stringent policy of testing the vehicle weekly at Cornell’s Teagle pool.

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XBee RF Smart Energy Compliant Power Meter Using Atmega644

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Motivation >A breaker-level power metering device for measuring energy on 4 different circuit lines and wirelessly outputting that energy data onto Google PowerMeter. Useful Links Google PowerMeter Smart Energy Alliance DOE – SmartGrid Energy Efficient Products Similar Projects Zigbee Wireless Relay Control & Power Monitoring PowerBox: The Safe AC Power Meter edcheung.com – Power Line

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Irradiance/Illuminance Meter using TLR235R sensor with AVR Atmega

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The TSL235 is a light-to-frequency converter. This library reads TSL235 output frequency and convert it to irradiance, and then to illuminance. Irradiance is the power of electromagnetic radiation per unit area (radiative flux) incident on a surface. It’s expressed in watt per square metre, the symbol is Ee. In photometry, illuminance is the total luminous flux incident

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Volt-Amp meter using AVR microcontroller using Atmega

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Voltage and current are two most important parameters of electricity. This project teaches you to build a simple volt-amp meter using avr microcontroller. This project may not enable you to build a high end measurement tool but will be a good diy project which gives a better understanding on A/D converter in microcontrollers. This meter is capable

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NIXIE TUBE THERMOMETER CIRCUIT USING ATMEGA

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Nixie lamp Thermometer DS18B20 Circuit with ATtiny2313 The first Nixie lamps appeared in the mid-twentieth century. For many years they have been used in a variety of apparatuses but have been supplanted by newer… Electronics Projects, Nixie Tube Thermometer Circuit “avr project, microcontroller projects, “ Nixie lamp Thermometer DS18B20 Circuit with ATtiny2313 The first Nixie lamps appeared in the mid-twentieth

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Mushroom Environment Control – Arduino Powered Using Atmega

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This is my first Arduino project aimed at helping me with my other hobby which is growing oyster and shiitake mushrooms indoors. In a nutshell, the controller takes in two temperature readings, 1 Humidity reading and 1 Co2 reading and triggers a set of four relays connected to mains power. Intended to be connected to

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Solar Powered Pulse Oximeter and Heart Rate Meter Using Atmega644

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Introduction Pulse Oximeter is a non-invasive medical diagnostic device used to detect the oxygen saturation of the blood. Heart rate meter detects the number of beats per minute of the patient, normally referred to as bpm. The pulse oximeter is designed using an infrared and a red LED, projected alternatively on the finger and detection

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Open Source Ventilator Alternative Using Atmega

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Access to medical devices is unequal across the globe, and the COVID-19 pandemic has underscored this fact. During the pandemic the global shortage of ventilators has been especially notable. Access to mechanical ventilation in Low and Middle Income Countries is inadequate. South Sudan, for example, possesses four ventilators in total. Across 84 healthcare facilities in

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Thermometer using DS1621 and Nokia 3310 LCD interfaced with ATmega8

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I am presenting one application with the Nokia 3310 LCD: Designing a thermometer using DS1621 temperature sensor IC. DS1621 is 8-pin sensor from Maxim, with temp range of -55 to +125 degree C, which can be interfaced with microcontroller over two-wire serial i2c bus. It has operating voltage range from 2.7 to 5.5v. I’m operating it here at 3.3v, same as the one

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