Praruh | Personal Blog :- Mostly on Tech World, my projects, and my thoughts

Hello friends, This is my first blog so please ignore if there are any mistakes. For making a GUI on Arduino TFT LCD, first of all, we need to know the resolution of LCD Display, Let's say, it is 240x320, we need to divide the rectangular box into 240x320 pieces, I know it is impossible. Let it make 24x32 which make the process a bit easier.  For making this process we can use the free software called  INKSCAPE (Click to download). It is basically a vector designing software. First of all, go to "File">"New from template"> Select "Desktop" and give the resolution as height and width. eg: 240 & 320 as shown in the figure below. Buy Nextion Display - 2.8" https://amzn.to/2xiMGxC Zoom a bit to fill the row and column as 24x32, If you know a better way to do this you can go ahead. Take a screenshot and save it (also I took a printout of that for making more convenient) and gave each row and column numbering 24 and 3...

Hello friends, I am here with another project, this project was actually made when I was in college. Before we start I just want to confess that the model that I have made was made completely out of the trash so it costs me less than 1000 Rs. and it lacks accuracy. So if you are trying to build one I suggest you invest some money and buy steel rods instead of PVC pipes. And also I have lost the videos and pictures that have taken when I was making this and when returning back, I dismantled it. So I had no good pictures of it. I have got some PVC pipes and fittings, cardboards and also I had my Arduino, old stepper motors and some cables, and need to buy only, driver IC for motor, timing belt, and pulley. And please excuse me for my bad English.  Let's know about the device, this device can be used as a 3D printer, engraver and CNC plotter.  By feeding a 2D image through a computer and placing the pen, it will work as a plotter or if we replace pen with an engraving tool, i...

Hello friends, This is my first blog so please ignore if there are any mistakes. For making a GUI on Arduino TFT LCD, first of all, we need to know the resolution of LCD Display, Let's say it is 240x320, we need to divide the rectangular box into 240x320 pieces, I know it is impossible. Let it make 24x32 which makes the process a bit easier.  For making this process we can use the free software called  INKSCAPE (Click to download). It is basically a vector designing software. First of all, go to "File">"New from template"> Select "Desktop" and give the resolution as height and width. eg: 240 & 320 as shown in the figure below. Zoom a bit to fill the row and column as 24x32, If you know a better way to do this you can go ahead. Take a screenshot and save it (also I took a printout of that for making more convenient) and gave each row and column numbering 24 and 32 respectively starting from the top left corner(0,0). The c...

Hello friends, If someone wants to make an intro screen or boot screen or GIF for their Nextion project this post is for you! The Nextion displays are the best display choice for beginners to start with. They are cheap and easy to make a GUI with a touchscreen. The main problem where most beginners and intermediate faces are the poor after sales support offered by the company. It lacks in tutorials for designing displays and explore its full functionalities. But the best thing is if you spent some time with the display you can learn the methods and tricks in Nextion editor software easily. Here I will show you how to make an intro or boot screen for your Nextion project. If you have a little bit of experience in Adobe Photoshop, you can make the best boot screens for your project. Requirements: Software's: Adobe Photoshop, Nextion editor Devices and Tools: Nextion display, SD Card, SD Card Reader Skills: Photoshop(beginner level is enough) STEP 1    : Create a ...

Nextion Displays are easy to use Human Machine Interface(HMI) device. It is the best display module not only for beginners also for experts. They come with an interface board consisting of flash memory starting from 4 MB to 32 MB and a TTL serial communication port to interface with MCU like Arduino, Raspberry Pi, ESP32. The inbuilt flash memory comes handy when we are working on complicated projects and designing great GUI. The Nextion Editor software can be used for creating GUI. It is free software that can be downloaded from their website(click here to go to the download page). With this editor, we can develop the HMI GUI by drag and drop components (graphics, text, buttons, sliders, progress bars, images, etc.) Let's make this simple. Let's talk about its advantages, Built-in flash memory to design and code GUI. Available in various TFT LCD display sizes including 2.4”, 2.8”, 3.2”, 3.5”, 4.3”, 5.0”, 7.0”. With a large selection to choose from, one will li...