This is for my wife. She deserves a tech gift for putting up with all my wires and tools lately!
I made a car rear obstacle sensor with audio alert. You can see how far something is behind your car when backing or parallel parking on LCD, both analog bar graph and digital readout. Plus it beeps like a Geiger Muller sensor when it comes closer and closer to an obstacle. I’ve tested it with a 12 ft phone cord. It’s good to go on my car for a field test!
I’ve made two versions of the code, a nutshell version which turns on and does what I said it does, then the fully interactive version with all the menus and adjustable parameters so if you want earlier audio warnings or want it off, choose from parameter list and customize it! This hopefully helps beginners (nutshell) and advanced users (full)! Leave some feedback!
If you like the shield, you can buy it here:
All details and codes are on my blog page:
Videos (watch the bar graph!):