Getting started with the AVR microcontroller series

Getting started with the AVR microcontroller series
AVR is a series of microcontrollers from Atmel. Fitted with A/D converters, comparators, timers, interrupts, internal oscillator, and more. Flash memory is used for the main program, SDRAM for variables and EEPROM for values that need to be saved through a power loss. Cheap, fast and easy make them perfect for home automation projects. Speeds up to 20 Mhz, USART (e.g., RS-232, RS-485) and low power consumption are some other benefits.
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Temperature and auxiliary sensor (RS-485), AVR

Temperature and auxiliary sensor (RS-485), AVR

Temperature sensor with serial RS-485 interface. Two additional sensors can be connected using 3-pin headers on the circuit board. Uses an AVR ATmega8 microcontroller.

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Temperature and humidity sensor (RS-232), AVR

Temperature and humidity sensor (RS-232), AVR

I rebuilt an existing interface module — to be a stand-alone temperature and humidity sensor, with serial RS-232 interface. Uses an AVR ATmega8 microcontroller.

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Temperature and light sensor with signalling LEDs (RS-232), AVR

Temperature and light sensor with signalling LEDs (RS-232), AVR

I rebuilt an existing interface module — to be a stand-alone temperature and light sensor, with serial RS-232 interface and some signal LEDs. Uses an AVR ATmega8 microcontroller.

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Car warning lights, with AVR controller

Car warning lights, with AVR controller

Strobe light controller, using the AVR ATtiny2313 microcontroller. Meant for cars; with front, side and rear warning lights.

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