Measure and Hold Distance with Ultrasonic Sensor on LittleBot Budget 

Program the LittleBot Budget arduino robotics kit to measure and hold a set distance away from an object using its ultrasonic sensor.
A good demo to create simple controllers. There are two methods. Using a true proportional controller or a basic if statement. Students can learn from both.
Arduino Code: www.littlearmr...
LittleBot Budget: www.littlearmr...
Other Tutorials: www.littlearmr...
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