Introduction EVBavr02

EVBavr02 is a development board designer for the hobbyist and engineers who want to quickly prototype their system based on AVR microcontrollers from Atmel. Developer has access to all pins of the micro, which are brought to the header (pin connectors) and labeled accordingly. Depending upon the board`s configuration (listed versions) some or all of the following components are found on the board: thermometer DS1820, potentiometer, relay, buzzer, RTC (real time clock), 7-segment LEDs and LCD display (2x16). The pin headers provided allow easy access to all these components. In addition, there are eight micro-switches and eight diodes which could be connected to any of the pin connectors or additional components, which may be placed on the large, adjacent prototype area. The power circuitry on board (bridge, voltage regulator) eliminates the need for an external regulated power supply.
This board comes with the several examples of the C code routines (source from), to facilitate testing and quick development in using the board`s resources. 
 

 We wish you lots of success and full satisfaction while designing and constructing appliances based on EVBavr02.  

 Supported microcontrollers

Available versions

The set EVBavr02 is sold in the version which includes:

• Procesor ATtiny2313
• All connectors
• Four 7-segment LEDs
• Diodes and switches
• Relay
• Buzzer
• 1 wire connector
• Real Time Clock DS1307 with 3,6V accumulator
• Potentiometer
• CD ROM with documents and software 

You can also buy the folowing accesories:

• DB1820 thermometer
• LCD (green, blue, with lighting or not)
• Connection cables

Power supply for the board

• The board shoul be supplied from external supply with voltage 7..12V AC, or 9..15V DC, using a standard plug with bolt diameter 2.1mm placed in the supply socket.
• Stabilized voltage Vdd is accessible on the connectors of the board extentions.
• There are two jumpers placed on the board: SUPPLY and 3V3. The closure of the 3V3 jumper results in all the circuits being supplied with 3.3V voltage (it can be regulated by 3V3 potentiometer from 1.8V to 3.3V), by the open jumper the voltage will be 5V.
• SUPPLY jumper gives the opportunity of connecting voltage omiting the circuits of the bridge and the regulator.

Demo programs 

• LCD.c demo of LCD display, there is a moving sign on the display saying "EVBavr02"
• TERMOMETR.c temperature measurement in [C], the result is displayed on LCD
• LED.c four functions chosen from the keyboard, each one causes a different light effect on the diodes.
• 7segLED.c there is display a sign on 7-segment LEDs.

 Software  v1.0   

Buy EVBavr02