Vehicle Battery monitor on a automotive relay form factor
Test/Measurements

Vehicle Battery monitor on a automotive relay form factor

Jesus Echavarria has tipped us with his latest project. A car battery monitor in a Relay form Factor. Unfortunately only hardware details are given and no details on software. He writes: Hi all! I’m really busy this year so I can’t post all the projects where I’m involved....

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PaPiRus Netapp – Monitor your network with Raspberry Pi
Raspberry Pi

PaPiRus Netapp – Monitor your network with Raspberry Pi

Use PiSupply's PaPiRus ePaper display to monitor your network with a Raspberry Pi. Over the past few days I have been converting my “Speedtest-cron” code to work on the PaPiRus from PiSupply. Whilst going over the code, I decided to start a new Git Repository and rename this...

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DIY Home Energy Meter
ArduinoDIYLCD/OLED

DIY Home Energy Meter

A new tutorial by The DIY Life is for building a home energy meter that provides information about power consumption and cost estimates for the month. Using Arduino and some other components you can build your own energy meter that measure the supply current to your home through a CT...

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7453
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Tiny OLED PC Performance Monitor
USB

Tiny OLED PC Performance Monitor

Rupert Hirst build a tiny OLED PC performance monitor based on Psyrax's serial monitor. The display monitors CPU and GPU temperature and activity etc. He writes: After a recent purchase of a Nvidia GTX1080 graphics card, 4k monitor plus Doom(2016), I thought it would be great to see...

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7915
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CO2, temperature and humidity monitor
Sensor

CO2, temperature and humidity monitor

An open source CO2 monitoring project from Roving Dynamics: The project described below uses a MH-Z16 or MH-Z19 CO2 sensor and a DHT-22 (or DHT-11 if less accuracy is required) to measure the Temperature and Humidity. It has a 4 line by 20 character LCD Display to show the current...

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2769
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30A, PCB-level supply monitor has integrated 300 µΩ sense resistor
IC

30A, PCB-level supply monitor has integrated 300 µΩ sense resistor

>Designed to simplify board-level energy measurements, the LTC2947 power and energy monitor for 0V to 15V DC supply rails eliminates the need for an external sense resistor to measure current. by Graham Prophet @ edn-europe.com Choosing a sense resistor, Linear says, is not an easy...

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2463
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Sunburn Monitor – A UV monitor
Arduino

Sunburn Monitor – A UV monitor

Sunburn Monitor is a UV monitor with sound-based indication. It calculates the max sun exposure before sunburn based on your skin type. The project was published over hackaday.io by [Quarterturn]. It's based around SI1132 light sensor from Silicon Labs. SI1132 is a UV index and...

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2741
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Low-side I/V sensing IC, with internal power calculation
IC

Low-side I/V sensing IC, with internal power calculation

Maxim Integrated has posted details of the MAX44299, a low-side current, voltage, and power monitoring circuit that provides an analogue output current proportional to the measured current, voltage, and the internally calculated instantaneous power. The power monitor offers high...

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3438
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