Using Atmega

thermo schematic

Thermometer using DS1621 and Nokia 3310 LCD interfaced with ATmega8

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I am presenting one application with the Nokia 3310 LCD: Designing a thermometer using DS1621 temperature sensor IC. DS1621 is 8-pin sensor from Maxim, with temp range of -55 to +125 degree C, which can be interfaced with microcontroller over two-wire serial i2c bus. It has operating voltage range from 2.7 to 5.5v. I’m operating it here at 3.3v, same as the one …

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lm35 temperature sensor

Measure negative temperature with Lm35 using atmega

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LM35 can measure temperatures from -55deg to 150deg and we need negative supply voltage for measuring this negative temperature. This circuit eliminates the negative voltage power supply and this project can measure the negative temperature Download the protesu file to simulate the project on your desktop Bascom Code Read more: Measure negative temperature with Lm35

smt160 temperature

SMT160 based Temperature indicator using atmega

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There are lot of temperature sensors both with analog & digital outputs. This project gives you an another temperature indicator which has been done with a digital sensor SMT160. Although it is a digital sensor it does not gives out the temperature directly. The output is duty cycled modulated. The sensor can measure temperature from -45deg to +150deg. The output …

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temperature controlled fan

Temperature controlled fan using PWM microcontroller using atmega

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This project gives you a simple temperature controlled fan. If the difference between real temperature and the user temperature is high then the fan will run at full speed and if the difference is low then the fan will rotate at slow speed. The speed of the fan varies with the temperature. The user can enter the temperature limit through the keypad. The speed …

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LCD Thermometer

LCD Thermometer TCN77 Using AVR Microcontroller Using Atmega

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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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DS1820 Temperature controller

DS1820 Temperature Controller using atmega8515 microcontroller

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This project displays the temperature on an LCD display with an resolution of 0.06degrees. DS1820 is used for sensing the temperature. It can measure temperature range from -55deg to +125deg. But i take care of only the possitive temperature. There are 3 switches to change the alarm temperature, the user can increment the Alarm temperature by pressing the UP button and they …

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