A very cheap electronics kit bought on eBay for just 50p. It makes a nice two-tone sound. But there were a few hiccups along the way.
Perfect Doorbell Suite Electronic Production Doorbell Suite DIY Kit NE555 F5 https://ebay.to/2G2RcWe
source
The post eBay Cheap: $0.75 Electronic Doorbell Kit NE555 appeared first on Techie In.
from WordPress http://www.techiein.com/diy/ebay-cheap-0-75-electronic-doorbell-kit-ne555/
Tags:
DIY