Hi: Comparators are what you want! They are essentially OPAMPs with no feedback resistor. Essentially they have two inputs, a reference and the othe...

Hi all: So I posed this question on the Arduino forum and the consensus seems to be that they definitely do suffer from “burn-in”. To mitigate this, ...

@zeferby Hi and thanks for the feedback! If I proceeded with the solar panel/DC-source idea, it didn’t occur to me to use the salvaged computer PSs a...

@casey I agree wholeheartedly! And he does it with highly professional video effects and preparation that is also evident in Bill’s work on the Drone...

If I may add a bit to this exchange, is that I recently learned that most all “switching-type” buck regulators will create some RF noise, as I recentl...

@ve1dx Hi: Isn’t the STM32 a lot more powerful (cpu cycles per second) than the nano? I am not trying to be critical at all, I just want to understand...

Hi just an update....I did get a 4-port powered USB hub and it has worked well in powering my pi/SDR dongle combination. That is, before using the hu...

Willkommen, Demski! Actually you are beginning your fifth decade at fifty years old! I hope you find this forum useful, I hope so as I have high reg...

Personally I would be very interested in the implementation of just such a thing. I have already put the idea away in a “to-do-one-of-these-days” lis...