Introduction: HC-SR04 Rangefinder (Raspberry Pi)
How to setup a HC-SR04 ultrasonic sensor with the raspberry pi.
Step 1: Parts
RPI 3 - https://amzn.to/2VA9pQY
4 Amp Power Adapter - https://amzn.to/2CTptWu
16GB micro SD - https://amzn.to/2SFMwd3
120 pcs jumper cable: https://ebay.to/2VAb9cY
HC-SR04 Sensors - https://amzn.to/2Ryw0hH
Resistor Assortment - https://amzn.to/2CV8vHa
HC-SR04 Brackets (optional) - https://amzn.to/2C6iwzY
Step 2: Setup
Online Guide: http://www.piddlerintheroot.com/hc-sr04/