Portable Fine Dust PM10 Analyzer with Large OLED Digits

Portable Fine Dust PM10 Analyzer with Large OLED Digits

In one of our previous articles, we built a DIY air quality monitor which was based on measuring the amount of Hydrocarbon concentration in the air using the BME680 VOC Whisker. While things work quite well using that method, there are several other parameters and air constituents which...

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60V to 5V @ 3.5A Buck converter with USB output

60V to 5V @ 3.5A Buck converter with USB output

This is a 60V to 5V - 3.5A step down DC-DC converter based on TPS54360B from Texas Instruments. Sample applications are: 12 V, 24 V and 48 V industrial, Automotive and Communications Power Systems. The TPS54360 is a 60V, 3.5A, step down regulator with an integrated high side MOSFET....

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33.027
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New and Improved Geiger Counter – Now With WiFi!

New and Improved Geiger Counter – Now With WiFi!

In one of our previous tutorials, we examined the development of a DIY-Geiger Counter showing the efforts of "Instructable" user Prabhat who combined the ESP8266 with a touch screen display to create a truly intuitive version of his Geiger Counter. He recently created an updated...

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16.237
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Capacitive Touch Sensor Toggle Switch

Capacitive Touch Sensor Toggle Switch

Touch sensors are used in many applications, from remote controls, LED light controls to appliance control panels. This is a simple solution to replace the mechanical buttons and can be implemented in a wide variety of applications. The sensor provides great user experience. It is...

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8.889
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2 Comments
IoT: Log Sensor Data to Google Sheets using NodeMCU

IoT: Log Sensor Data to Google Sheets using NodeMCU

Data is regarded as the major value proposition of IoT. The ability to receive real time data from different sources, store it and process it into actionable insights to transform and optimize processes either in real time or not is of immense value. This is one of the reasons why device...

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30.498
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14 Comments
Current Limit Solid State Power Switch with Latch

Current Limit Solid State Power Switch with Latch

The project published here is a solid-state power switch with current limiting that prevents damage to host devices from faulty load conditions. This analog current limit switch has low on-resistance P-channel MOSFET and INA202 driver IC from Texas Instrument. The project operates...

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6.957
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USB Powered Audio Amplifier using MAX4298

USB Powered Audio Amplifier using MAX4298

USB powered mini speaker amplifier is conveniently powered by USB and it is simple to set up. USB powered speakers are convenient for listening to your media while at home or on the go. Conventional computer speakers that require an electrical outlet to work can be prohibitive because...

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12.126
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Arduino Air Quality Meter

Arduino Air Quality Meter

Recent campaigns around environment pollution helped increase the awareness around it with more people beginning to monitor their pollution footprint while also paying attention to the quality of air they breathe in. Different countries and communities have now several Air quality...

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7.169
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3 Comments
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