my recent reads..

LEAP#258 Another Clap Switch and Excuse to Solder Boldport-style

I’ve had this clap-switch (voice activated) kit sculling around for a while .. another “stocking stuffer” bargain from aliexpress. The circuit is very similar to a previous clap-switch project, and nothing drastically interesting. So I pulled this kit out primarily to practice some Saar Drimer/Boldport-style soldering. The objective is simply beautiful solder domes;-) I do some comparisons, and come to the realisation that the solder stock is perhaps the most important factor. As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub hero_image


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LEAP#257 It's a Blinking Emergency!

I joined the Boldport Club rather late, but manage to snaffle up the Emergency kit PCB in sale of “Just Less the Perfect” boards. Since I’m working with just the PCB, there’s an obvious challenge to do something a bit different. After a bit of experimentation, I was able to get something to work with only a few liberties taken with the original PCB - it is now an LED blinky with 3 passives and a transistor (Esaki Effect) As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub hero_image


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LEAP#256 The BoldportClub Pease

A Bob Pease tribute, this LM331 voltage-to-frequency kit was the first Boldport Club project. I joined the Boldport Club rather late, and missed out on the original Pease kit (now out of stock). But I did manage to snaffle the PCB in sale of “Just Less the Perfect” boards. Since I was kit-less, I decided to experiment a bit and slow down the frequency - the end result is a light/voltage controlled “blinky”. As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub hero_image


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LEAP#255 ATtiny PWM

PWM with ATtiny is not simply a subset of how things work on the ATmega328. It offers some different capabilities. This is my summary of hardware PWM control with a range of examples of controlling duty cycle and frequency with the ATtiny85. As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub hero_image


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