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Overview In this article, you will learn how to control DC, Stepper, and servo motors by Arduino and L293D. At the end of this tutorial, you should be able to control spinning direction, acceleration, speed, power and shaft position.If you do not know what L293D is, we suggest reading L293D: Theory, Diagram, Simulation & Pinout . Why Driving Motors with L293D? Driving electromotors needs a high current. In addition, spinning direction and speed are two imp...

Overview In this tutorial, you will learn how to upload and download data to/from a Firebase database with Arduino UNO and ESP8266 module.Storing data (like sensors data) to a database that can be accessed from anywhere by the internet may be very useful. Firebase makes storing and retrieving data easy. What You Will Learn How to make a database in Firebase How to upload (download) data to (from) Firebase ...

XKC-Y26-V Non-contact Liquid Level Sensor Features The XKC-Y26-V Non-Contact Liquid Level Sensor is a digital output sensor that detects the presence of liquid. There is an LED on the module, which will turn on if liquid is detected, otherwise it turns off. There is also a screw on the body of the module that you can use to adjust the sensitivity of the sensor. This sensor is suitable for dangerous applications such as detection of toxic substances, strong acids, strong alkalis, etc. ...