Build this garage parking assistant for helping you keep from smashing into stuff. Use and ultrasonic distance sensor using the HC-SR04 chip, an Arduino NANO or Teensy, and an Adafruit Neopixel. Simple to wire, easy to code using c code. Best way to be alerted when parking your car is in the sweet spot. As you drive closer each of the 60 pixel light strip will light up indicating distance


Source code
https://github.com/KrisKasprzak/Sampl...

link to light strip
https://www.amazon.com/Adafruit-NeoPi...

Other useful tutorials
Temperature sensor shootout:    • Temperature sensor shootout  
Using 7-segment LED's:    • Using 7-segment display LED's  
Writing and reading to SD cards:    • Tutorial: Writing and reading to SD c...  
Saving settings even during MCU power down:    • Tutorial: How to save settings to MCU...  
Getting those darn TFT LCD displays to work:    • Tutorial: Getting TFT LCD displays wo...  
Turning stuff on or off:    • Tutorial: Use your MCU to turn stuff ...  
Writing analog signals/voltages:    • Tutorial: Use analogWrite to vary spe...  
Using digital sensors:    • Tutorial: Use digitalRead to monitor ...  
Using analog sensors:    • Tutorial: Use analogRead to monitor a...  
Talking to your Arduino:    • Tutorial: How to talk to your Arduino...  

Some fun projects to build
Build a 3D printer filament meter:    • Build a 3D printer filament meter  
Homemade motorized table saw fence    • DIY motorized table saw fence  
High"er" res homemade Thermal Camera for $100:    • DIY high-er res Thermal Camera for $100