Category Archives: Electronics

FreePCB Arduino Shield Template

Having been too busy / lazy to sit down and learn Eagle CAD or another “real” PCB program, I’ve been using FreePCB to make all kinds of PC boards on the LPKF board plotter at work. With our increasing use of … Continue reading

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Resistive Security Loops

Incorporating a resistor into a security system loop circuit can make it a lot harder to spoof — provided it’s done correctly. Continue reading

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Components: LEDs

LEDs are useful devices. They require a bit more thought to use than indicator lamps, but are very versatile and efficient. Continue reading

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Using a 16×2 LCD display

16×2 text LCDs are useful microcontroller peripherals. Here is how to connect and use them. Continue reading

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