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GSM Module SIM300 Interface with AVR Amega32

A GSM/GPRS Module like SIM300 can be used for any embedded application that requires a long range communication, like a robot in Chennai controlled by a person sitting in New Delhi! Or simply a water pump in a rice field turned on in the morning by a farmer sitting in his house few kilometers away! You have few communication options depending on the application, they may be as follows. Simple SMS based comm ...

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LCD interface

This example is based on a LCD module with the Hitachi HD44780 LCD-controller.You can get these displays in various kinds, from 1 to 4 lines and from 8 to 40 characters per line. A display with 16 characters per line and 2 lines is used in this example. The display uses a power supply of 5V DC. The LCD controller can accept 8 bit data bytes or 4 bit nibbles. In this example the 4-bit mode is used. There are ...

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LCD/switch interface

Page 1 of 2 This board can directly connected to the STK 500 board or the ATTiny2313 ISP program board with a 10 pole flatcable on the 10 pin header of the STK500 and the 10 pin header of the LCD/Switch board. The display has 16*2 character positions and is Hitachi HD44780 compatible, and also has a LED backlight that can be switched on/off by a jumper. You can puchase the ATTiny2313 board at www.bizztronix ...

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Brain-Computer Interface Using Atmega644

Introduction Our goal was to build a brain-computer interface using an AVR microcontroller. We decided that the least invasive way of measuring brain waves would be using electroencephalography (EEG) to record microvolt-range potential differences across locations on the user's scalp. In order to accomplish this, we constructed a two-stage amplification and filtering circuit. Moreover, we used the built-in ...

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ODB-II Automotive data interface using Atmega644

Our goal for this project was to build an OBD-II compliant device that would communicate with any OBD-II enabled car and read back real time data as well as perform basic performance testing and diagnostics. If you've ever had to take your car into the shop because of the dreaded "Check Engine" light, you can have the same appreciation for this project as we did. Since 1996, all cars sold in the United Stat ...

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Multisensor Data Transmission Using Atmega32

Introduction For our final project we built a prototype of a circuit intended for a picosatellite that measures temperature and acceleration, sending the information wirelessly back to a base station receiver. The N-Prize is an amateur rocketry competition challenging groups to launch a very small (10g-20g) satellite into orbit for less than $2000, and track it over 9 orbits. While modern large satellites r ...

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TRISHUL -Autonomous navigating robot Using Atmel Mega32

Introduction We decided to do this project due to our keen interest in the robotics. We were also looking for a project that involved a perfect mix of hardware and software complexity. This project enabled us to use new hardware such as sensors, stepper motors and their integration in big projects. The robot is essentially a vehicle propelled by two stepper motors. It uses IR sensors for detection of obstac ...

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