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Monthly Archives - Sep 2013

RS232 Serial Communication with PIC Microcontroller – Flowcode

RS232 serial communication is one of the oldest communication where data is sent or received one bit at a time. This protocol can easily be used to communicate between a PC and various devices supporting this type of protocol like PIC microcontrollers, GPS, GSM modem etc. While other interfaces like Ethernet, FireWire, and USB all send data as a serial stream, the term “serial port” usually identifies hardware more or less compliant to the RS-232 standard, intended to interface [...]

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Interfacing 7-Segment Display With PIC Microcontroller – MikroC

The 7-segment display is the earliest type of an electronic display that uses 7 LEDs bars arranged in a way that can be used show the numbers 0 – 9. (actually 8 segments if you count the decimal point, but the generic name adopted is 7-segment display.) These devices are commonly used in digital clocks, electronic meters, counters, signalling, and other equipment for displaying numeric only data. It is not different from an LED in terms of interfacing, by turning [...]

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Multiplexing of 7-Segment Displays with PIC Microcontroller – MikroC

The 7-segment display is the earliest type of an electronic display that uses 7 LEDs bars arranged in a way that can be used show the numbers 0 – 9. (actually 8 segments if you count the decimal point, but the generic name adopted is 7-segment display.) These devices are commonly used in digital clocks, electronic meters, counters, signalling, and other equipment for displaying numeric only data. It is not different from an LED in terms of interfacing, by turning [...]

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Interfacing a Relay with PIC Microcontroller – MikroC

A relay is an electromagnetic switch which is used to switch High Voltage/Current using Low power circuits. Relays isolate as well low power circuits from high power circuits, this is a good feature especially for safety reasons a section of the circuit with high dangerous voltage/current could be isolated from the user. When a low voltage is applied to the relay (coil wounded on a soft iron core), this coil becomes a magnet which in turns energizes the soft [...]

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Introduction to Graphical User Interface (GUI) for Microcontrollers

A graphical user interface (GUI) is one of the ways to interface between your microcontroller and a personal computer (PC) operated by a human with a mouse or a keyboard. It is always easy and require less skills to operate a device from a visual representations of the workspace (GUI) by simply clicking a mouse or using a keyboard rather than a command line. GUI can also be used to interface with other external devices located in different places. There are a [...]

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Creating a new Project in C#

Microsoft C# is a simple, modern, general-purpose, easy to learn object-oriented C programming language developed by Microsoft within its .NET framework to develop Windows applications. For this tutorial, you are going to need Microsoft Visual studio or C# express version installed on your computer. If you don’t have one, you can download an express version for free from Microsoft website. Click on “New Project…” or open File Menu than “New Project…” to create a new project. A Sub window will pop out giving [...]

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Creating a Serial Port Interface with C#

A serial port interface is a Graphical User Interface program that runs on a personal computer and can be used to connect to a microcontroller via a serial connection. In this article a detailed step by step description with source code on how to create a simple Serial Port Graphical User Interface (GUI) using Microsoft Visual C# is outlined. From the toolBox on the left-hand side, under the Components sub-section, drag and drop SerialPort Control on the form and it shall [...]

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Interfacing SD Card with a PIC Microcontroller – Flowcode

A memory card is a solid-state electronic data storage device used for storing digital information. They are commonly used in many electronic devices, including digital cameras, mobile phones, laptop computers, MP3 players etc. They are small, re-writable and are able to retain data without power. This ability to retain data and the ability to re-write many times is the key for flash memory card applications, for example, in digital cameras, where the saved pictures are not lost after the memory card [...]

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Analog to Digital Converter with PIC Microcontroller – MikroC

Analog to Digital converters allow analog continuous voltages to be converted into a discreet digital numbers inside the PIC as the PIC can only process digital numbers. This can enable a PIC to be connected to analog sensors such as temperature sensors, pressure sensors, humidity sensors, optical sensors, and power sensors. This is a nice feature to use as most of PIC microcontrollers today have built-in analog to digital converters (ADC) with the number of channels depending on the number [...]

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