Distance measurement of an object in the path of the person, equipment, or a vehicle or moving object is used in a large number of applications such as robotic movement control, vehicle control, blind man’s walking stick, medical equipment, etc. There are many methods available for distance measurement but measurement using Ultrasonic sensor is one of the cheapest among other options. In this project, we are going to use HC-SR04 Ultrasonic Sensor with ATtiny85 microcontroller IC and OLED display module to build a digital ultrasonic ruler.
For the circuit diagram, code and gerber files, please visit the project page: DIY Digital Ruler
For more electronics project, visit: projects page
