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Real Time Clock ATMega16

Description The ATMega16 chip in the M16 has a real-time counter that operates asynchronously when a 32,768hz watch crystal is connected to it, providing a real-time clock. Bascom has built-in support for the RTC, making it very easy to use time functions. The watch crystal needs to connect to pins TOSC1(pin 28) and TOSC2(pin 29). The time and date can be set via the PC serial port connection. Hardware requ ...

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PC Thermometer Using ATTiny2313

Description With this project you can show the temperature on you PC. This thermometer plugs in on any free serial port. It gives temperature readings accurate to 0.5°C with no calibration.The project consists of the ATTiny2313 RS232 Project board and the DS1621 Thermometer board and software for the PC. It can display both indoor and outside temperature on the PC screen (see picture below). Features: Plugs ...

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PC Steppermotor Driver Using AT2313 µ-controller

Description With this circuit you can control two unipolair stepper motors in full step mode via the RS232 serial port of your PC. A terminal program such as Hyperterminal can be used to control the stepper motors. The stepper motors can be driven one at a time. Features: Drives two unipolair stepper motors in full step mode Accepts commands via the serial port of your PC. Can be used with any OS that has a ...

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LCD Thermometer TCN77 Using AVR Microcontroller

Description The TC77 is a digital temperature sensor with a Serial Peripheral Interface. Temperature data is converted from the internal thermal sensing element and made available at anytime as a 13-bit two’s compliment digital word. Communication with the TC77 is accomplished via a SPI and MICROWIRE compatible interface. It has a 12-bit plus sign temperature resolution of 0.0625°C per Least Significant Bit ...

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LCD Thermometer TCN75 Using ATTiny2313

Description This small thermometer board uses the Microchip TCN75 device. It is a cheaper clone of the LM75, it costs about 2,50 Euro. The TCN75 comes in a SO8 packaging. The TCN75 is a serially programmable temperature sensor. It has an output that is programmable as either a simple comparator for thermostat operation or as a temperature event interrupt. Hysteresis is also programmable. Communication with ...

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LCD Thermometer LM35 Using AT Mega8

Description The LM35 of National Semiconductors that is used in this project is a precision centigrade temperature sensor, which has an analog output voltage. It has a range of -55ºC to +150ºC and a accuracy of ±0.5ºC . The output voltage is 10mV/ºC . The output voltage is converted by the AD convertor of the AT Mega8. The temperature is displayed on an LCD module. In this example the thermometer has a rang ...

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AVR GPS Locator using avr microcontroller

In this project i have interfaced an GPS with AVR microcontroller, the ATtiny2313 gets the location from the GPS and display it over the LCD display. This project also have the feature of marking a place with its name. For entering the Name of the place i have used the PC-AT Keyboard. At starting the microcontroller will display the latitude and longitude on the LCD display and if you need to mark the place ...

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