Tag Archives: mod

YOUYUE 858D+ hotair station — BLDC Fan-speed mod

Posted on October 23, 2015 by robert

I’ve finally forced myself to layout a small board. It’s been far too long anyway. It consists of these building blocks: reference voltage, comparator, RC low-pass, gain. There are better methods for the job, e.g. using a digital one-shot to … Continue reading →

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Small project #14 — KIS-3R33S breakout — with citrus smell !

Posted on May 20, 2015 by robert
www.youtube.com/watch?v=4vuW6tQ0218″

Not “pining for the fjords”, but pining for the boards!

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Small project #10 — IKEA Samtid reading-light upgrade

Posted on June 22, 2014 by robert

Yet another reincarnation of a PT4115 based LED lamp. This time I chose to add a micro-controller to the mix. No, not an ATtiny13 but an ATtiny45, as it contains a much desired feature for this job: high frequency PWM … Continue reading →

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