Article PC Watchdog – Automatic reset for remote PCs gone haywire
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Article PC Watchdog – Automatic reset for remote PCs gone haywire

Today’s PCs are quite reliable, but occasionally they hang and stop functioning. Only a ‘hard reset’ will then be able to bring them back to (useful) life. This project takes care of that automatically. Especially handy with remotely located hardware!While many PCs, including...

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DIY: Build a controller with a knob that can easily change the volume of any app on your PC
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DIY: Build a controller with a knob that can easily change the volume of any app on your PC

Ruben Henares has designed a Maxmix controller with a stylist knob that could save us the stress of having to always go through the menus and on-screen sliders to change the volume of individual apps on our PCs. The knob on the controller takes an input from the encoder/button to...

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Free Elektor Circuit: Magic Key
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Free Elektor Circuit: Magic Key

An infra-red remote control for an (electromagnetically operated) lock? Nothing special, you will think. But some umpteen years ago this looked like magic, and it was very satisfying to build something like that yourself. Even if it was only to amaze the neighbors. Here you can see how...

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Free Elektor Article: Power Outage Detector with Text Messaging
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Free Elektor Article: Power Outage Detector with Text Messaging

Power outages are fairly rare in central Europe, and when they do occur, they are usually short. However, if the heating system of your holiday home doesn’t start up again after a power outage, the consequences can be costly. And even if only your freezer at home stops working while...

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Programmable Thermostatic Switch using AD22105
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Programmable Thermostatic Switch using AD22105

This project simply switches the system OFF or ON whenever the temperature rises at the desired set point.  The desired setpoint can be set using a fixed resistor R6 or PR1 trimmer potentiometer. Use any of at a time R6 or PR1. You can calculate the setpoint resistor R6 using the...

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Capacitive Touch Sensor Toggle Switch
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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 easy...

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Current Limit Solid State Power Switch with Latch
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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 have low on-resistance P-channel MOSFET and INA202 driver IC from Texas instrument. The project operate from...

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Temperature Controlled FAN using ATtiny10
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Temperature Controlled FAN using ATtiny10

The electrons movement in electronic components lead to the generation of heat which when beyond certain thresholds, prevents some components from functioning properly and in others could lead to a catastrophic breakdown. For this reason, the topics of ventilation, overheating, and...

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