TechKnowLab

 Using SD Card Module with Arduino  In this article, I am going to explain how to use SD card module with Arduino to write and read data. This article will help you to make your own data logging system such as - temperature logging system, humidity logging system, speed logging system, acceleration and gyroscope data logging system, etc. Components and Parts Arduino UNO SD Card Module Computer SD Card  Power Supply   Circuit Diagram   Download Libraries SD Card Library - SD.h : Download SPI Library - SPI.h: Pre-installed in Arduino IDE Arduino Code for Writing Data to SD Card #include < SPI . h > #include < SD . h > File myFile ; void setup ( ) { // Open serial communications and wait for port to open: Serial . begin ( 9600 ) ; while ( ! Serial ) { ; // wait for serial port to connect. Needed for native USB port only } Serial . print ( "Initializing SD card..." ) ; if ( ! SD . begin ( 10 ) ) { Serial . println ( "initialization failed!&qu

 Power Supply Selection for Project: Powering up your projects (Robotics, IoT, Mechatronics, Automation, etc.) means providing its parts (micro-controller, sensors, actuators, etc.) with right supply. These parts require different supplies of different current capabilities. In this article you will know about different powering method and their characteristics.     How to select power supply for the project? What is a supply? When you build any project like robots, mechatronics, automation, IoT projects you will need to consider how you will supply it with power. In fact, some parts, such as micro-controllers and sensors, typically require either 5 or 3.3V. They also need a stable (regulated) voltage supply. Other parts may need 12V such as motors. This require several different supplies with different current capabilities. In this post, different ways of supplying power to your project are presented and discussed. Battery Your main power source is always a DC battery. Batteries come i

 Obstacle Avoiding Robot: If you landed on this page, you must be a robotics enthusiast. You must be thinking to learn the robotics. Obstacle Avoiding Robot is one of the most liked beginner level robot. It will teach you a lot of concept about electronics, coding, micro controller and robotics. In this article, I will help you to choose the component for making a obstacle avoiding robot. So, Lets get started.  Obstacle Avoiding Robot - Kit and Components Obstacle avoiding robot is a programed movable object (car, four wheel drive, 3 wheel drive) which is intelligent enough to avoid obstacles coming in its path and change its path to reach at the target. I am providing here the list of parts or components so that you can assemble and make the simple object detection and avoiding mechanism of the robot. Obstacle avoiding robot is made up of following type of components: Mechanical Parts/Hardware Electronics Components/Hardware Software/Arduino Code  So, Lets discuss each part one by one

This article is the base on the Internet of things ( IoT ) . IoT describes the network of physical objects—“things” or objects—that are embedded with sensors, software, and other technologies for the purpose of connecting and exchanging data with other devices and systems over the Internet. In this article 3 LEDs will be controlled by an android application (made using Blynk) over a wifi connection. How to use NodeMCU with Blynk  If you want to start learn the Internet of Things (IoT) concept, then controlling a LED over the  internet is the " Hello World!" of the IoT journey. Performing the " Hello World" task will be easy using NodeMCU micro-controller as the first client and Blynk as the 'broker' or server and Blynk android application as the second client. Now communication between two clients will happen through broker over the internet. Now lets, make this happen.  Components Required For this activity we will need following components: Nod

  How to 3D sketch and use Swept Base/Boss Command in SolidWorks | 3D Sketch | Sweep Command | Penrose Cube   In this Tutorial, an amazing 3D solid model of cube will be generated using SolidWorks. This cube is made up of single continuous extruded material in the form of a loop. This tutorial will demonstrate you some basic tools and operations of SolidWorks.  Tools/Commands used: 3D Sketch Fillet (Sketch) Sweep Boss Command Cube: using 3D sketch and Sweep Boss       Download 3D Solid Model File of Penrose Cube: Download Download STL file of Penrose Cube:  Download

  Additive Manufacturing (AM) is one of the advanced manufacturing method. Additive manufacturing method includes a number of technologies. Various types of additive manufacturing or 3D printing has been discussed previously, if you want to read it, pleas click here . In this article we will study about the materials used in additive manufacturing or 3D Printing.   Primary materials used in additive manufacturing are: Polymers Metals Ceramics Material used in Additive Manufacturing. Nowadays, composite  is also being used in 3D printing. The composite is a material, which is made up of two different materials. The composite used in 3D printing  may be of:  Composite of Metal and Polymer Composite of Polymer and Ceramics Composite of Metal and Ceramics Polymers Polymer is most popular in 3D printing, because it is cheap and technology which used polymer as feed material for 3D printing, are also easily available and simple in design. Fused Deposition Modelling (FDM) is one of