In this tutorial, you will learn how to send WhatsApp messages from Arduino UNO R4 WiFi using the CircuitDigest Cloud Whastapp API. Instead of using a GSM module, SIM card, or complex WhatsApp ...

Arduino has an enormous fanbase around the world and is frequently used for classes, hobbies, computer tinkering, and projects from hopeful inventors. Sure, it may not be quite as user-friendly as ...

Abstract: This paper discusses how to integrate a widely used, inexpensive laser range finder (LRF), the Hokuyo URG-04LX-UG01, with an easy-to-use Arduino microcontroller, into a science, technology, ...

Note: the 2024 economy version of this course is at maker100-eco New for Feb 2026 is the maker100-xiaoML-kit which is a rebuild of th esp32S3Sense course with the new $38.90 USD xiaoML kit from ...

TOF or Time of flight is a commonly used method to measure the distance of distant objects by various distance measurement sensor like ultrasonic sensor. The measurement of the time taken by a ...

When a new piece of technology comes out, the price is generally so high that it keeps away everyone but the die hard early adopters. But with time the prices inch down enough that more people are ...

There are various ways to interface a laser with Arduino depending on the application. A laser diode finds applications in CD/DVD reading and recording, optical-fibre communications, laser printing ...

Abstract: This paper described a new technique for obstacle avoidance or depth control using a laser range finder and blue LED and then applied to Autonomous Underwater Vehicle (AUV). AUV is equipped ...

Range finders are amazing tools for doing pretty much anything involving distance calculations. Want to blink some lights when people are nearby? There’s a rangefinder for that. Need to tell how far ...

Since this project is based on the SDCC Small Devices C compiler, I called it "Small Devices -uino" or "Small-duino". It is entirely based on free tools that are available for Linux, MacOS, and ...