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Today we have a new, "powerful" Raspberry Pi HAT, a load of solar panels, and a knob for our small and medium-sized slide pots!

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New fees may be coming to solar panels. How will that affect us and you?

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Just a thought for Anker Berg-Sonne: If you start running into the speed of writing to the SD card as a limiting factor, you might look into…

Sweet! I like the use of the ESP8266 to log data on ThingSpeak.

Great idea. 😀 I'm going to build an electric go kart next and that will greatly simplify the control system.

One change that would eliminate the need for a servo and gear shifter is use an electric generator to run an electric motor using a variable…

Please be aware that most SSRs ( If not all ) have a leakage current so there is a voltage present on switched side of the SSR even when it…

You're math is quite correct. Good catch!

"Flipping a light switch can often take upwards of 1000 milliseconds, assuming you are even close to it!" and later on "extremely fast…

A few other points (from someone who's been using relays for more than half a century): Although you alluded to it near the end, mechanical…

You might want to mention that there are different kinds of SSRs to switch different loads (AC, DC, AC/DC). While obvious after the fact,…

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