grossdan
@grossdan
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Joined: 2021-11-10 6:19 pm
Last seen: 2022-07-06 8:13 pm
Topics: 9 / Replies: 38
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Replies: 36
Views: 2399
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RE: Oscilloscope -- which to get -- the conclusion

@pylearner thank you for the suggestion. Its more on the pricey side, but, given that i am doing this with my kids and want them to learn by doing, ...

2 years ago
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RE: Oscilloscope -- which to get -- the conclusion

@esccrasci I noticed that there exist oscilloscopes that are also logic analyzers, but some are "only" oscilloscopes and some are only logic analyzers...

2 years ago
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RE: Oscilloscope -- which to get -- the conclusion

I love the idea to check out a local college -- curious what i will find there ...

2 years ago
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RE: From 3V to 5V -- how to operate ICs working with 5V from Microbit / Audrino 3V pins

@jker thank you. Yes, i realized this the other day, what the difference between those are -- but already bought quite a few of the LS components --...

2 years ago
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RE: Newby question: simple led circuit - measuring current, led resistance

@foxy I just read that a led is in fact a semi conductor device -- and hence whether there is a flow of electricity or not is dependent on a min volta...

2 years ago
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RE: From 3V to 5V -- how to operate ICs working with 5V from Microbit / Audrino 3V pins

Thank you. I got confused ... I was thinking about fan out and unnecessarily conflated it with up-leveling. Connecting each of the five output ...

2 years ago
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RE: From 3V to 5V -- how to operate ICs working with 5V from Microbit / Audrino 3V pins

@will In one of the youtube videos a buffer was mentioned -- to facilitate fan out. Looking up the MM74HC125 3-STATE Quad Buffers, thought to ad...

2 years ago
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2 years ago
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RE: Newby question: simple led circuit - measuring current, led resistance

@foxy Thank you -- yes, that's what i was wondering about -- how to calculate the resistor needed to adequately limit the current. But, i was also c...

2 years ago
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RE: Newby question: simple led circuit - measuring current, led resistance

@robotbuilder thank you ... its interesting in the reference that a led is modeled "If we look at a typical LED IV curve we can see that it is appro...

2 years ago
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RE: Newby question: simple led circuit - measuring current, led resistance

@will thank you, To try things out -- i exchanged to 100 Ohm resistor with a 1K Ohm one -- and the led still caused a 2 V drop, with the rest g...

2 years ago
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