Noob 2309

about 1 month ago
Project - Water-Proof Ultrasonic sensor with separate transducer & receiver | in Arduino i have seen your video of making a Ultrasonic sensor, i am now tring to make one of my own. but i want it to be waterproof so rather then using a SR04 speaker i am tring to use SR04T speaker but it not working. any suggestion. view more

Adrian Anghel

about 2 months ago
  • Agricultural Engineer in Horticulture and Gardening
  • Spain
Project - Can’t find a pulse oximeter? Create your own! | in Arduino

As John Keefe notes in his project writeup, at-home pulse oximeters — which monitor the oxygen saturation in your blood — have been selling out due to the COVID-19 pandemic. While you could try hunt around and find one, he decided to instead make his own device using a SparkFun Pulse Oxi... view more

Andrei Gabriel

about 3 months ago
  • Electrical Engineer and Maker
  • Spain


We will make a homemade ultrasonic distance sensor and see how these modules work. The working principle is quite simple but the circuit could get a bit tricky. We send a ultrasonic wave with the transmitter speaker, the wave hits an obstacle and bounce back to the receiver speaker. We calculate ... view more

John Bruh

about 8 months ago
  • CAD designer
  • United States

Tutorial - Ultrasonic Sensor HC-SR04 and Arduino Tutorial

In this Arduino Tutorial we will learn how the HC-SR04 Ultrasonic Sensor works and how to use it with the Arduino Board. You can watch the following video or read the written tutorial below. view more

Rick Sanchez

about 9 months ago
  • Electrical engineer
  • United States


about 9 months ago
  • Electronic Engineer and YouTuber
  • Spain


In this tutorial we will make a homemade lidar. Is not as good as commercial lidar sensor, but it would be good enough for some small robot to avoid obstacles. I will show you what is a lidar sensor, how they work and how I’ve made a homem... view more