Author - Ligo George

Blinking LED using LPC2148 – ARM Microcontroller Tutorial – Part 3

Hello World In this tutorial we will learn how to start programming an ARM microcontroller. This is a hello world project (blinking an LED) intended for beginners to ARM microcontroller programming. Here we are using LPC2148 ARM microcontroller and Keil IDE for programming. Components Required LPC2148 Development BoardLED220R Resistor Registers In this section we will learn about different registers used for configuring or controlling a pin of an ARM microcontroller. In microcontrollers, pins are divided in to different PORTS. Usually a 32-bit microcontroller will have...

February 15, 2020By ARM, ARM7, Tutorials, , , , 0 CommentsRead more...
Flash Magic Tool

Flashing LPC2148 – ARM Microcontroller Tutorial – Part 2

In this tutorial we will learn how to flash an LPC2148 microcontroller using on-chip serial (UART) ISP bootloader with Flash Magic tool. Components Required LPC2148 ARM Microcontroller USB to UART converter with DTR and RTS outputs. You may also use ready to go boards like rhydoLABZ LPC2148 Stick. Connections LPC2148 ISP Serial UART Flashing Connections Circuit Diagram LPC2148 ISP Serial UART Flashing - Circuit Diagram Using Flash Magic Tool Above we seen how to make connections for serial ISP programming. In this section we will see...

January 15, 2020By ARM, ARM7, Tutorials, , , , 0 CommentsRead more...
Keil - Product Downloads

Installing Keil IDE – ARM Microcontroller Tutorial – Part 1

This is our first part of ARM microcontroller tutorial. In this article we will see how to setup development environment for ARM microcontroller LPC2148. We are using Keil IDE for this. Downloading IDE Go to "keil.com" Go to "Download" page Go to "Product Downloads" Go to MDK-Arm Fill the contact form and submit it. You will get the download link of Keil IDE Keil - Product Downloads Downloading Keil Legacy Support Go to legacy support's download page. Click on "Download Legacy Support for...

October 8, 2019By ARM, ARM7, Tutorials, , , 0 CommentsRead more...
MAX485

How to solve MAX485 heating and stops working problem ?

Is your MAX485 IC getting burned or stops working after sometime ? Or is your RS485 circuit is not working as expected ? If your answer is 'Yes' you are at the right place. You can simply follow below guidelines to solve this problem. Before one year this problem used to trouble me a lot. Usually the MAX485 or RS485 circuit works fine in lab and it may even work in the final environment also. But after sometime it will...

September 22, 2018By Electronics, 2 CommentsRead more...
MAX232 - SOIC

How to solve MAX232 / MAX3232 Heating or Burning problem ?

Is your MAX232 or MAX3232 is getting heat or burned ? I have also faced similar issue and struggled a lot to find the problem when I was working in some projects involving RS232 communication. It is very easy to solve this problem, just follow the below guidelines. Follow Manufacturer Specific Datasheet As you know MAX232 / MAX3232 is manufactured by different companies. Each one is having it's own specifications and properties. So first you need to refer the manufacturer specific datasheet....

August 19, 2018By Electronics, , 0 CommentsRead more...
System Configuration - OpenWrt

How to change Hostname of OpenWrt ?

Sometimes you may need to change the hostname of your OpenWrt. Host name is stored in the system configuration file. You can view it in the following command. cat /etc/config/system System Configuration - OpenWrt It is very easy to change hostname of OpenWrt, using following commands. Here we are changing our hostname to "electroSome". uci set system.@system[0].hostname='electroSome' uci commit system /etc/init.d/system reload Changing Hostname of OpenWrt

August 18, 2018By OpenWrt, Tutorials, 0 CommentsRead more...
OpenWrt Logo

Getting Started with OpenWrt C Programing

In this tutorial we will learn how to cross compile a C program for OpenWrt. Cross compiling a C program for OpenWrt is a little complicated task for beginners. So I thought of writing a detailed tutorial for it. Please feel free to comment below if you have any doubts or you want to add anything more to this article. OpenWrt Prerequisite You need a linux system for making the OpenWrt build environment. We are using Ubuntu in this tutorial. Windows 10 users...

June 15, 2018By OpenWrt, Tutorials, , , , 3 CommentsRead more...
Automatic School College Bell using PIC Microcontroller

Automatic School / College Bell using PIC Microcontroller

Here we are sharing a fully automatic and configurable bell which can be used in schools and colleges. It is made using commonly available microcontroller and other components. Components Required PIC 18F4550 16x2 LCD Display DS1307 or DS3232 or DS3231 32.768 kHz Crystal 16 MHz Crystal 4.7K Resistor - 7 10K Resistor 10K Preset 22pF Capacitor - 2 100nF Capacitor 4x4 Keypad 680R Resistor LED - 1 3V CMOS Battery BC548 1N4148 Relay (5V/12V) Circuit Diagram Automatic College Bell using Microcontroller - Circuit...

May 30, 2018By Embedded, PIC Microcontroller, Projects, , , 9 CommentsRead more...
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