I want to make an extremely cheap product with a speaker and two LEDs, the other components are no problem, but I need an IC that comes in a die form and I want to put a custom song to it, the IC must be a bare die, so I can put it in a Chip On Board assembly.
The IC must not require an...
I’m trying to fix my niece’s toy vending machine.
How it works:
Machine trigger neither by fake coin and credit card (the motor push the lever then it hit the stop switch which stop the motor). But when trigger by fake paper money then the motor will keep turning about 4 seconds after the stop...
I was pondering it would be cool to create a, lets call it a "toy" and suppose it's a bear or a doll or something, which can detect passers by and turn it's head as though it's watching them. Ok maybe it's just creepy.
Is there some kind of sensor, or way of making a sensor, which can detect...
Sorry if this is too beginner for this forum, this is my first attempt at designing a solution for an electronics circuit. I have the dancing gopher from Caddy Shack, which switches on from a push toggle button, and runs two 3 volt battery powered electric motors which make the item dance. The...