How to Make an Ultrasonic Range Finder

An rangefinder is a instrument that you could use to measure the distance from a selected point or object. Adding ultrasonic to the mix, just adds an extra emphasis on sunlight.

Instructions

Difficulty: Challenging

Things You’ll Need:

• PSoC microcontroller
• Two 40-kHz ultrasonic transducers
• Two resistors
• Two capacitors

1. Remebering the range finder has three different sections, you can begin the quest. The three are transmitting, receiving and output sections.
2. Different PSoC microcontroller resources were used in this project. I used five 8-bit counters, an 8-bit serial transmitter, two 8-bit PWMs, and a digital inverter.
3. The actual construction can be somewhat daunting due to the task but while doing the work, a realization of it not being difficult is met. Begin with the wire jacks mounting them to the base. Then add the microcontroller part and finally the two capacitors. After this, add the resistors on top of the capacitors.
4. Finally, the calibaration of the unit is needed before its actual usage.

Tips & Warnings

• The circuit uses 5-v. This is very important, as the unit will not function properly without.