nilclass

joined 1 year ago
[–] [email protected] 1 points 3 weeks ago

Growing plants with LEDs certainly works, I'm just wondering if the power of a USB port is enough

[–] [email protected] 12 points 3 weeks ago (4 children)

Is this a painting, or actual fruit?

If fruit, how long did it last until the apples turned brown?

[–] [email protected] 1 points 3 weeks ago (2 children)

there's no need for relays if you have low voltage

That's a good point. Also makes me wonder if those lights will actually make a difference when it comes to plant growth, given the low power.

[–] [email protected] 6 points 3 weeks ago (2 children)

It's not completely stupid. One pissible issue: when the light level is around the threshold, slight variations (think: cloud passing by) will cause the relay to switch back and forth quickly. This can be solved with some additional parts (keyword: hysteresis).

I would recommend using a microcontroller, it makes this problem easy to solve, plus you can have more logic to trigger the lights (eg time based).

Another thing is turning off: if it's purely based on light level, you need to make sure the sensor does not "see" any of the LED light, otherwise it thinks the sun is back up

[–] [email protected] 16 points 4 weeks ago (1 children)

Sounds like gifting

[–] [email protected] 11 points 1 month ago (2 children)

Yeah, mini is the best! It is robust and has a ahape that makes it easy to figure out which way to plug it. I love it when i fet a device with a mini

[–] [email protected] 1 points 1 month ago
align-items: nope;
[–] [email protected] 4 points 2 months ago

That's a common misconception. The cybertruck's sails are designed to be pushed by a high-power stream of gasoline, not wind

[–] [email protected] 6 points 2 months ago

On which continent are you then?

[–] [email protected] 15 points 2 months ago* (last edited 2 months ago)

Wright

Also: one's, not once

[–] [email protected] 5 points 2 months ago

Public schools with private rules

[–] [email protected] 31 points 2 months ago (3 children)

On the other hand, a more flexible car could get you out of a traffic jam more easily

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