These LED string lights are a great way to add light to any project with little to no soldering required. The insulated strings come in 10m lengths with one green LED every 10cm for a total of 100 LED's, all you have to do is add 12V and they are ready to shine.
Like many of you, I was a child of the 80's brought up on NES & SNES. The wonderful world of Mario Bros. Zelda, Faxanadu and Castlevania just to name a few. We all knew the magic tricks to get a dead cartridge to work - blowing in it, rubbing it with an eraser, running the NES upside down or justing tac to hold the cartridge in the down position.
One great project by Igor Kromin was to get a dead NES working with a Raspberry Pi to power it.
He set out to:
If you are sourcing a ultrasonic ranging module , the HC-SR04 is a good choice.
Its stable performance and high ranging accuracy make it a popular module in the electronic market .
Compared to the Shape IR ranging module , HC-SR04 is cheaper, but it has the same ranging accuracy and longer ranging distance.
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