A quick halloween scare prank using an Arduino, HC-SR04 ping sensor, and a servo. A spider drops on anyone trying to ring the bell.
Project tutorial by Kristian Blåsol
A motion activated light and sound installation to scare the trick or treaters.
Make the smallest Arduino possible with just an ATtiny85 8-pin DIL-IC running in 8MHz from an internal Oscillator.
by Kristian Blåsol
It is about a robotic arm of 3dof + 1 controlled by arduino and visual basic that plays tic tac toe game against a human player.
Project showcase by Jose Luis Bejarano Vasquez
Oh. Wait you mean to power the mp3 module from the arduino? Don’t. Instead just use any usb charger to power the MP3 player. If you follow my exact schematics you use relays instead of the buttons on the MP3 player. And the voltage on the arduino shouldn’t matter. As long as the relays can work on 2.7v.
Hope this helps more than my previous answer.
I used a 5v version of arduino. I think I used an UNO which uses 5v as standard.
What arduino model do you use?
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