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    PWM PC fan for solder fume extraction

    Here's a solder fume extractor that uses an 08M2 to pwm a small PC fan to provide variable fan speed control. It was the first time I'd pwm'd a motor so I learnt a few things along the way. The hardest part of this project was shoehorning all the bits into the enclosure. To save space I use...
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    Max7219 module as whirlpool timer

    Here's a project I completed recently that has made use of several things I've learnt about as it progressed... It's a handheld timer that counts down from 9 and displays a whirlpool animation after reaching zero. My nephew is fascinated by whirlpools and by the countdown timer on my phone so I...