DavidL
DavidL
@davidl
Trusted Member
Joined: 2022-06-06 10:18 am
Last seen: 2022-12-04 4:35 pm
Topics: 7 / Replies: 26
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RE: Battery power for esp32 30 pin

@zander Thanks for the information. I will use 4 1.5 volt batteries instead of a 9 volt battery, and I'll check the voltage before connecting to the ...

2 months ago
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RE: Battery power for esp32 30 pin

Quick follow-up question. Is there a voltage regulator or something in the USB cable that drops the voltage from 9v to 5v? Thanks.

2 months ago
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RE: Battery power for esp32 30 pin

@zander Ron, you made my day! I was considering starting over with a different board. I'm pretty bad at soldering, so that would be quite a bit of l...

2 months ago
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RE: Battery power for esp32 30 pin

@zander Hi Ron, thank you for the response. I didn't know I could power a USB cable with a battery. That sounds like a great option, and I would li...

2 months ago
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RE: Parallel circuit voltage

@davee Sermons are welcome, and at this stage, "too simple" is "just right" for me. Thanks for the pointers about the capacitor. I haven't gotten a...

5 months ago
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RE: Parallel circuit voltage

@robotbuilder Thanks for the response. I will do some research on that. It looks like it's not as simple as I thought.

5 months ago
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RE: Parallel circuit voltage

@will Hi Will, thanks for the response. I think I understand what you're saying about the power supply not being able to maintain the full voltage...

5 months ago
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RE: Parallel circuit voltage

@zander Thanks for the response. I'm not sure which light bulb example I saw, but I think it probably was 120 volts. You are correct that the brea...

5 months ago
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RE: Parallel circuit voltage

@robotbuilder Thanks for the response! Yes, the power source is a battery. I think I misunderstood parallel circuits. I didn't realize that adding...

5 months ago
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RE: Breadboard power supply decreasing voltage

Thank you for the kind words! I'm enjoying learning and experimenting (for me, swapping out parts is still an "experiment"). It's great to have the ...

6 months ago
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RE: Breadboard power supply decreasing voltage

Ron, Could you recommend a specific meter or brand? I searched for multimeters with clamp on ability, and the prices ranged from about $30 to over ...

6 months ago
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RE: Breadboard power supply decreasing voltage

It was the batteries! I tried two and thought that was enough. Next time I'll try three. The two batteries that I was using initially were from ...

6 months ago
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RE: Breadboard power supply decreasing voltage

Ron, thanks for the response. I'm going to get new batteries later today. The batteries I tried were unused, but they could be years old. I'm also ...

6 months ago
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RE: Breadboard power supply decreasing voltage

Hi Dave, Thanks for the help. The power supplies are "HiLetgo", not sure if that is the type you're describing or if that's enough information. H...

6 months ago
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RE: Breadboard power supply decreasing voltage

Hi Ron, thanks for the response. It's good to know that I should be seeing steady voltage. I should have mentioned that I've tried with two batte...

6 months ago
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