How to make Writing Machine

Writing Machine This is mini Drawing Machine, I have made this cnc Machine by using 2 Nema17 stepper motor 1 servo motor, Arduio Nano, L293D IC, some acrylic sheet, wood, and some hardware   following is the lick to buy components   Material List Arduino nano L293D IC PCB Terminal Header pin Servo motor Stepper…

DIY IR Proximity Sensor

How to make IR Proximity Sensor Hello guys In this post I will show how to make a simple IR proximity sensor IR Proximity have one IR LED & one Photodiode in this project LM358 IC is used Basic Working Principle   Basically IR LED will transmitte Infrared light when this light fall on reflecting surface…

What is SCR ?

SCR Stands for silicon controlled rectifier. Almost all type of semiconductor devices are made up of P-Type & N-type semiconductor materials, in this post we will see basic structure of “SCR” a thyristor. The word “Thyristor” derived from the capital letter of two words THYRATON and TRANSISTOR. Hence a thyristor has a combine feature of thyratron…

Variable DC power supply circuit using LM317

  About the article Variable DC power supply is required frequently for any hobbyist, Different level of voltage sources needed in many different projects so it is next to impossible to arrange all type of fixed voltage source, at same time it is too expensive to buy those kits from market so why not we make a variable…