arduino

pH Meter using Arduino Uno and LCD Display

pH scale is used to measure the acidity and basicity of a liquid. It can have readings ranging from 1-14 where 1 shows the most...

Arduino to Arduino Bluetooth Communication using Master Slave Configuration

HC-05 Bluetooth Modules are the go-to Bluetooth modules for any Arduino project! It’s easy to hook up and code in the Arduino...

Programmable Gain Amplifier using MOSFET and Transistor

In the measurement industry, a very crucial functional block is a Programmable Gain Amplifier (PGA). If you are an electronic...

AC Current Measurement using Current Transformer and Arduino

A current transformer is a type of instrumental transformer specially designed to transform alternating current in its...

Arduino FreeRTOS Tutorial 3- Using Semaphore and Mutex in FreeRTOS with Arduino

In previous tutorials, we have covered the basics of FreeRTOS with Arduino and the Queue kernel object in FreeRTOS Arduino. Now...

Arduino FreeRTOS Tutorial 2- Using Queues in Arduino FreeRTOS

In the previous tutorial, we introduced FreeRTOS in Arduino Uno and created a task for the blinking LED. Now, in this tutorial...

Arduino FreeRTOS Tutorial 1 - Creating a FreeRTOS task to Blink LED in Arduino Uno

The OS present inside the embedded devices is called an RTOS (Real-Time Operating System). In embedded devices, real-time tasks...

Automatic Hand Sanitizer Dispenser with COVID19 Live Updates

Corona Virus (Covid19) is wreaking havoc in the world. Almost every country is suffering from the Corona Virus. WHO has already...

Digital Keypad Security Door Lock using Arduino

Often times, we need to secure a room at our home or office (perhaps a secret dexter’s laboratory) so that no one can access...

Coin Sorting Machine using Arduino

We previously built an Arduino based paper currency counting machine using a color sensor. Now in this project we are building...