ATmega microcontrollers, they are coming from the AVR family which Atmel developed long back, and later this Atmel company was taken by Microchip. So now officially Microchip owns it but still people say Atmel AVR only. These MCUs became very popular slowly because they are easy to understand, quite affordable, stable in long run and […]
Arduino
How Flex Resistors Work and how to Interface it with Arduino for Practical Implementation
As electronics enthusiasts we may come across many kinds of resistors, from small fixed resistor to high current bulk rheostat. There are humongous classifications among resistors, but here we will focus on a particular kind of resistor called “flex resistor” and learn how it works. As the name signifies a flex resistor is flexible and […]
Arduino LCD KeyPad Shield (SKU: DFR0009) Datasheet
The write up explains the pinout and working details of the LCD module “Arduino LCD KeyPad Shield (SKU: DFR0009)” which is specifically manufactured for offering a quick plug-in compatibility for all Arduino based applications which may require displaying a particular parameter in digits, such as temperature, speed, time, weight etc. Arduino LCD KeyPad Shield (SKU: […]
Arduino Battery Level Indicator Circuit
In this post, I will show how to construct an Arduino based battery level indicator, where a series of 6 LEDs show the level of the battery. If you are interested in monitoring and maintenance of your 12V battery, this circuit might become handy. Why Battery Level Monitoring is Crucial All batteries have certain voltage […]
Arduino based Battery Over Discharge Protection Circuit
In this post, I will show how to construct a over discharge protection circuit for 12v battery using Arduino which can protect 12V SLA battery against over discharge, and also protect the connected load from over voltage in case of overcharged battery is connected. Understanding Battery Charge/Discharge Rates All the batteries have natural decline, […]
Line Follower Robot Circuit without Microcontroller or Arduino
In this article I have explained a simple line follower robot circuit, also known as line tracker vehicle, using just a couple of op amps from the IC LM324 and a few other components, without using complex Arduino or microcontrollers. It means this project can be built without any coding, just by using discrete components, […]