this post was submitted on 12 Nov 2023
1481 points (96.1% liked)

tumblr

3436 readers
911 users here now

Welcome to /c/tumblr, a place for all your tumblr screenshots and news.

Our Rules:

  1. Keep it civil. We're all people here. Be respectful to one another.

  2. No sexism, racism, homophobia, transphobia or any other flavor of bigotry. I should not need to explain this one.

  3. Must be tumblr related. This one is kind of a given.

  4. Try not to repost anything posted within the past month. Beyond that, go for it. Not everyone is on every site all the time.

  5. No unnecessary negativity. Just because you don't like a thing doesn't mean that you need to spend the entire comment section complaining about said thing. Just downvote and move on.


Sister Communities:

founded 1 year ago
MODERATORS
 
you are viewing a single comment's thread
view the rest of the comments
[–] uis@lemmy.world 12 points 1 year ago* (last edited 1 year ago) (1 children)

Easy difficulty: arduino + LED strip

Medium difficulty: cheapest stm32 + LED strip

Hard difficulty: cheapest chinese 8051 microcontroller + LED strip

Electric difficulty: timer relays + regular lightbulbs

Novichok: discrete logic + opamp + lots of passive components + LED strip

Soviet engieneering: discrete logic + opamp + lots of passive components + thyristors + light bulbs

[–] Rentlar@lemmy.ca 1 points 1 year ago (1 children)

I was about to suggest photoresistors/photodiodes for the lolz. I must be a communist.

[–] uis@lemmy.world 2 points 1 year ago

Kolhoz engieneering