Mechatronics

   

Electronics Tutorial #1 – Electricity – Voltage, Current, Power, AC and DC

This tutorial covers the following: * Some history about electricity / central power stations / electrification. * Science of electron flow in a conductor / wire * I use fluid dynamics in a pipe to explain voltage (pressure), current in Amps (flow) and consumption in Amp hours (rate of flow). * We look at AC (alternating current) and DC (direct current) on the UNI-T UT81B scopemeter * We look at how voltage / pressure is required to charge a 12 volt battery * What is electricity? / How does electricity work?  

Arduino Uno: control circuits and homebuilt servos

This tutorial Contains the following: * introduction * boot process * basic input/output * simple computing * optical sensors scanning disc * controlling an H bridge * analog inputs (ADC) * controlling servos * improving the homebuilt wiper servo * PID control loop * soft start and emergency stop * controlling a combustion engine * linear servo with digital sensor  

Profibus vs Modbus│ Difference Between Modbus and Profibus Communication│

There are some different of Modbus and Profibus which are sometimes called “Fieldbus”. It is a common name used to tell any network industry that links the field devices. As a generic explanation it was fashionable at one point, but looks to have fallen out of use in recent times.   It is also occasionally applied as the simple form of a particular protocol called Foundation Fieldbus. It is only one more protocol such as Profibus or Modbus, but it has attributes which are planned specifically for industrial processes.   It was also used as the short form for a…

Simple Examples of PID Control

This video continues the topic of PID control. We walk through a simple control system and visualize how each of the three paths, P, I, and D, all address specific problems that arise in a typical system. I try to use very little math in this lecture because I want to show you that at the foundation PID control is very intuitive. Most of it you can reason through.  

Arduino Garden Controller – Automatic Watering and Data Logging

Gardening in the modern age means making things more complicated and arduous, with electrons, bits, and bytes. Behold: the garduino. My brother got me an arduino microcontroller board for Christmas, which to me was a solution looking for a problem. I finally found the problem: fresh herbs are expensive at the grocery store. But apparently not as expensive as adding a bunch of sensors and electronics to your garden.   Build one yourself or just poke around in the code: https://github.com/gradyh/GradyHillhouseGarduino   Moisture sensors that measure the resistance or conductivity across the soil matrix between two contacts are essentially junk….

Arduino Project: Home Security Project with SMS Intruder Alert – Easy DIY project

In this video we build a very useful intruder alert using Arduino. The project is very easy to build and the cost of it is very low. All you need is an Arduino Uno, a GSM shield, a PIR sensor, and a DS3231 rear time clock. You can buy all these parts from the links below. The project, when it detects motion, it sends an SMS to a predefined telephone number! That’s a great project to build and protect your belongings!  

Arduino Smart Home Automation

Arduino Smart Home Automation control your devices or home electric appliance with wifi Network or Internet Network.   Hardware Feature • 8 Digital Output Control • 4 Analog Input Sensor • Control via TCP/IP or Internet • Control with Web Browser or Android App   Software Feature • Arduino Web Server TCP/IP ( LAN ) • Set your device name and sensor name • Sensor Control Output Automatically. • Set your IP Address and port • Real time status   Hardware Device 1. Arduino MEGA Board or compatible board. 2. Ethernet (WIZnet 5100) Shield 3. Relay Board 4. Light Sensor…

The Best Multimeter Tutorial in The World (How to use & Experiments)

This video compares a 10 dollar to a 170 dollar multimeter and shows the average person how to use the voltage, current, resistance, continuity, diode and battery options. I also cover safety concerns and run all tests simultaneous with both multimeters.   This video covers: Difference between 3 and 4 probe options on a multimeter.   Tests include: * Voltage of Battery (DC) * Voltage of Outlet (AC) — discover something interesting in one of my outlets — discover a SERIOUS hazard with the 10 dollar meter * Current of a toaster (LIVE) * Resistor test * Metal tape test?…

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