Microcontroller Controlled Police Strobe Light

Circuits with flashing LEDs and amazing color combinations are pretty popular. This is probably because they are not only simple but one can literally see the results instantly. Let’s have a look at a microcontroller controlled police strobe light using an ATtiny45 from Atmel. LED flashing circuits have been around for ages and probably always […]
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Resuscitate Atmel AVR from CKSEL Fuse-Bit Death

The most common way to ‘kill’ a Atmel AVR microcontroller is by programming fuse bits wrong. Sooner or later every Atmel AVR enthusiast will stumble across a fuse-bit related problem. The most common mistake, a wrong clock source selection through the CKSEL fuse-bit, can be fixed easily. The fuse-bits CKSEL0 through CKSEL3 let the microcontroller […]
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Atmel AVRISP mkII and BASCOM AVR

More and more computers (especially laptops) aren’t equipped with serial and / or parallel ports anymore. Therefore, more and more programming interfaces utilize USB instead. However, some people are extremely attached to their older serial / parallel programmers and often oversee how a USB based device can simplify their life a lot. Atmels’s AVRISP mkII […]
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