Serial Communication

Gesture control is one of the coolest ways to interact with technology—no buttons, no touchscreens, just simple hand movements. It almost feels like magic when you can control devices with a wave of your hand!

This technology has a wide range of real-world applications, from flying drones and controlling robots to managing smart home…

In today’s fast-paced world, many of us spend long hours indoors—whether working from home, studying, or just managing our daily routines. Natural cues like changing skies, outdoor temperatures, or the feel of humidity are often lost behind four walls and closed windows. This can make it difficult to stay aware of what’s happening outside, especially when our focus…

Bitmerse, a leader in embedded development, has introduced Wiser, an open-source solution for wireless serial bridge. Wiser stands out for its seamless, driverless compatibility with a range of operating systems including Windows, Linux, Mac, and Android. One of Wiser's most notable features is its comprehensive support for standard and customized baud rates,…

Let's say you are trying to build a remote IoT data monitoring system; the first problem you will face is how to get a proper internet connection for your device. Whether you want to get notified when someone enters your room or you want to water your plants from miles away, the internet is always a problem. In this type of situation, the SIM800L GSM/GPRS Module…

Connecting an SD card module to Arduino is way easier than you think. In this guide, we’ll break down the module’s pins and components, show you how to wire it to your Arduino, and get you reading and writing data in no time. Think of it as turning your Arduino into a reliable data logger. We have covered many other interfacing tutorials before that might interest you, such as this 16x2 LCD…

Why Serial? Well, using serial communication imparts a number of advantages including simplicity, easy-to-impellent, and needs only a few GPIO pins. RS-485 and RS-232 are the two serial data communications standards that have aged well. They existed way before USB, SPI, flex I2C, and many others, and yet still remain relevant and have their…

We have been using Microcontroller Development Boards like Arduino, Raspberry Pi, NodeMCU, ESP8266, MSP430, etc. for a long time now in our small projects where most of the times distance between the sensors and board is not more than few centimeters at max and at these distances, the communication between the different sensor modules, relays,…

UART stands for Universal Asynchronous Receiver/Transmitter and it is a useful hardware feature in any microcontroller unit. A microcontroller needs to receive data, process it, and send it to the other devices. There are different types of communication protocols available in the microcontroller, however, UART is the most used one among the other communication protocols…

Programming a new microcontroller often takes a longer time due to the new register handling methods and not knowing what bit does exactly what. The same goes for debugging as well without saying. This is why programmers quite often use breakpoints in their code and step through it using a debugger. But using a debugger might need additional hardware (most times expensive)…

The benefits of getting two machines (or components within them), to talk to one another have been an obvious one to Industrial automation and control experts, way before the Internet of Things (IoT) became mainstream. The values in a temperature sensor at the heart of a crankshaft sending measurements to control the motor drive relay etc. was clear, and one of the…

Today any average car consists of around 60 to 100 sensor units in it for sensing and exchanging information. With car manufactures constantly making their car more smarter with features like Autonomous driving, Airbag system, Tire Pressure monitoring, Cruise control system etc. this number is only expected to go high. Unlike other sensors, these sensors process critical…

In the previous tutorial we learned about Modbus RS-485 Serial Communication with Arduino as Slave. In continuation with that article today Arduino will be used MODBUS Master and communicate with MODBUS slave. Here MODBUS Slave Software installed computer will be used as MODBUS Master. So, let’s begin by a short introduction about the RS-485 and Modbus.