Iam being working on my college project that is "gsm based waste collection and overflow monitoring and indicators" .
By using ultrasonic sensor and arduino UNO to measure waste level and when the ultrasonic sensor measures 10 cm to less, it send one sms showing "waste bin is full" message using gsm module (i have gsm sim300). CAN ANYBODY HELP ME WITH ITS PROGRAMMING IT IS SUPER IMPORTANT.
What have you done already?
Hardest part: determine whether the waste container is full. This as most waste piles don't have an exactly level surface where a single point is representative for the whole.