PocketAdmin – Keystroke Injection Device

PocketAdmin – Keystroke Injection Device

This is a keystroke injection device (also called badusb). It is similar to a well-known USB rubber ducky made by hak5, but has much extended functionality, lower price and is also completely open source. It looks and feels like an ordinary USB flash drive, but acts as a keyboard that...

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Program ATtiny 0-Series Chips with a Miniature UPDI Dongle

Program ATtiny 0-Series Chips with a Miniature UPDI Dongle

Thanks to their tiny size and improved capabilities, the ATtiny-0-Series of microcontrollers have been a delight for designers and DIYers looking for a microcontroller with the ease of use associated with the Arduino boards, but with a way smaller form factor associated with ATtiny...

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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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4.479
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2 Comments
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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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 version...

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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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8.822
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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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30.192
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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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