interfacing Archives - Page 9 of 54 - Projects Tutorials Code Library for Atmels Atmega32 AVR

RFID Checkout System Design using ATmega644 microcontroller

The Elevator Pitch We successfully implemented a prototype RFID checkout system that will enable consumers to instantly pay for their entire purchase upon arrival at the register, increasing customer satisfaction, reducing retailer costs, and ultimately lowering consumer prices. Summary Shopping in the present day usually involves waiting in line to get your items scanned for […]

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Project Development Board using ATTiny2313 microcontroller

This is my first time using the AVR. I like to learn using the ATTiny 2313, because it is faster than MCS-51, cheap and the circuit is very simple. The chip has only 20 pins. I was interested because I want to build a simple line follower robot controlled by this MCU. Board Construction The

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Data Acquisition System using ATmega8

AVR ATmega Projects, How To - DIY - Projects, Temperature Measurement Projects / Ibrar Ayyub

Introduction We can use a PC for connecting the homemade data acquisition hardware and produce the GUI for user friendly graphical presentation easily. One of the project that uses Visual Basic is the Data Acquisition & Logging System using AT89C51 made by Abbas Raza. In this project we use a PC for GUI display and

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ATMEL AVR ATMega 8535/16/32 and ATMEL AT89S5x Family Learning Kit

AVR ATmega Projects, Development Board - Kits Projects, Home Automation Projects / Ibrar Ayyub

Both Mainboard Features Pin compatible for 40-pin AVR and AT89S5x family Microcontrollers Single sided PCB, header for 4 I/O ports, ISP port and RS-232 port Built in +5V voltage regulator LM7805 with heatsink Built in +5V and +12V (depend on input voltage) with terminal screw connector for further expansion Onboard In System Programmer header Schematic

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AVR Programmer using ATTINY2313 microcontroller

AVR ATmega Projects, Microcontroller Programmer Projects / Ibrar Ayyub

INTRODUCTION AVR910 is a very useful programmer. It can program almost complete range of AVR chips. The original version made by Klaus is here, http://www.mikrocontroller-projekte.de/Mikrocontroller/AVR-Prog/AVR-Programmer.html. The programmer uses ISP capability of AVR chips. AVR910 first appeared in AVR910 application note by ATMEL. It is one of the fastest programmers for AVR. We can use AVR

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4×4 keypad example using AVR-GCC C language

AVR ATmega Projects, How To - DIY - Projects, Interfacing(USB - RS232 - I2c -ISP) Projects / Ibrar Ayyub

This is as simple routine how to read 4×4 keypad keys using AVR-GCC language. The keypad is connected to AVR microcontroller 8 bit port. In this example it is B port. You can change ports depending on your needs – this is only an example ant it is not the only way to this. Howt

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Servo motor control using Atmega8 microcontroller

AVR ATmega Projects, Motor Projects / Ibrar Ayyub

Servo motors are so called “closed feedback” systems. This means that motor comes with control circuit, which senses if motor mechanism is in desired location and if not it continuously corrects an error until motor reaches proper point. Servo motors are widely used in robotics, remote controlled planes, vehicles. So they come in many shapes

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AVR LCD menu routine using ATmega8 microcontroller

AVR ATmega Projects, LCD Projects / Ibrar Ayyub

Lets have some practice and write simple AVR LCD menu routine. For this we need to write LCD control library. I decided not to use one from AVRLIB. LCD controlling isn’t difficult just a few lines of code unless you want to make it more universal. I want to demonstrate how LCD menu control may

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Simplified AVR LCD routines using ATmega8 microcontroller

AVR ATmega Projects, LCD Projects / Ibrar Ayyub

Controlling numeric LCD isn’t so tricky as it may look like. O course you can find numbers of LCD libraries. One of more universal you can find in AVRLIB library for WinAVR AVR GCC compiler. Main disadvantage of such universal libraries that they compile all functions even if you don’t want them. This way huge

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Measuring motor speed and display result on LCD using ATmega8 microcontroller

AVR ATmega Projects, Interfacing(USB - RS232 - I2c -ISP) Projects, LCD Projects, Motor Projects / Ibrar Ayyub

For measuring motos speed there can Optical interrupter used like H21A1. This is a device where IR LED and photo-transistor is coupled in to plastic housing. The gap between then allows interrupting signal with opaque material and this way switching the output from ON to OFF. This device can be connected to Microcontrollers ICP pin

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