EVBavr02 evaluation board for AVR microcontrollers ATtiny2313 i AT90S1200/2313. User`s manual REV 1.0. Many ideas one solution

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1 EVBavr0 evaluation board for AVR microcontrollers ATtiny i AT0S00/ REV.0 User`s manual Evalu ation Board s for, AVR, ST, PIC microcontrollers Sta- rter Kits Embedded Web Serve rs Prototyping Boards Minimodules for microcontrollers, etherdesigning Evaluation Boards for net controllers, RFID High Spe- ed In System programmers for AVR, PIC, ST microcontrollers Microprocesor systems, PCB, AVR, ST, PIC microcontrollers Starter Kits Embedded Web Servers Prototyping Boards mi- nimodules for microcontrollers, ethernet controllers, RFID High Speed In Systems programme- rs for AVR, PIC, ST microcontrlollers Microprocesor systems, PCB designing Evaluation Bo- ards for `, AVR, ST, PIC microcontrollers Starter Kits Embe- dded Web Serwers Prototyping Boards Minimodules for microcontrollercontrollers, ethernet controllers, High Speed In System program- mers for AVR, PIC, ST microco- Microprocesor R Many ideas one solution Systems, PCB Designing Evaluation Boards

2 . Introduction EVBavr0 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, potentiometer, relay, buzzer, RTC (real time clock) and LCD display (x). 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 great success and full satisfaction while designing and constructing appliances based on EVBavr0.

3 . Board layout.. Prototype area.. Additional components connector.. LED`s and micro-switches. Potentiometr. switch. Accumulator V.. Speaker. Programmer header.. Power ON/OFF switch. 0. Input power jack (AC/DC).. Relay header.. -wire port.. RS port. Dual header port A, port B.. Real Time Clock DS0.. LM voltage regulator.. LCD display (optional).. -segment LED.

4 . Supported processors AT0S00 AT0S ATtiny/V FLASH k k k SRAM - b b EEPROM b b b Pheripherals Supply voltage -bit Timer/Counter, Analog comparator, SPI, Programmable timer Watchdog with integrated oscillator..-.0v ver..0-.0v ver. -bit Timer/Counter, -bit Timer/Counter, Analog komparator, Programmable timer Watchdog, SPI, Full Duplex UART.-.0V ver..0-.0v ver.0 -bit Tirem/Counter, -bit licznik, Analog komparator programmable Watchdog, SPI, USI Full Duplex UART. -.V (ATtinyV). -.V (ATtiny) Clock frequency 0- MHz ver. 0- MHz ver. ATtinyV: 0- MHz ver. 0-0 MHz ver V, V ATtiny: V, V Temperature range -0 + C Cases 0-pin PDIP, SOI, SSOP 0-pin PDIP i SOIC 0-pin PDIP i SOIC. Power supply for board Recommended external power supply voltage is -V AC, or -V DC. A standard power jack (bolt diameter.mm - negative) is provided at the edge of the board. Stabilized voltage is available on the double header and on the prototype area of the board. The selection of the is provided through a V header. The default voltage is V DC (no jumper on V header). By placing a jumper becomes. VDC. The SUPPLY header allows for direct access to the power jack input. Placing a jumper bypasses the bridge and voltage regulator.

5 . Peripheral circuits.. LEDs The board has LED diodes, which make the simplest interface between the system and the user. This is especially useful for the beginners, who want to manipulate or debug their program with different hardware configurations. The diode turns on after grounding of the associated Ldn (n = 0 ) pin. Figure. LED diodes.. Switches The board is equipped with micro-switches. Pressing one of them causes grounding of the corresponding pin on the SW header. Figure. Switches

6 .. Relay Acces to the relay circuitry consist of the REL pin of the MISC header and pins: NC,NO,COM of the relay header. REL pin is indirectly connected to the base of the transistor. Logic level ( or.v DC) applied to the REL pin, will activate the relay. External circuits can be controlled via NC, NO, COM I/O pins. Figure. Relay schematic.. Acoustics indicator (speaker) The board has an acoustic indicator turned on and off by the transistor. The base of the transistor is connected to the SPK pin of the MISC header. Logic level ``( or.v DC) applied to the SPK pin, will activate the speaker. Figure. Implementation of acoustic indicator..potentiometer The board is equipped with one potentiometer, allowing for simulation of the analog circuit outputs. The potentiometer enables the adjustmet of voltage in the range 0-. The potentiometer output is accessible on ADJ pin of the MISC connector.

7 Figure. Potentiometer..Siedmiosegmentowe wywietlacze LED The board is equipped with four -segment led display. They make an interface bettwen the system and the user, allowed to display up to four chars. Figure. Implementation of -segment LED..RS Interface There is a DB- connector on the board, connected with the ST state converter. On the other side of the converter there are pin connectors with converter circuit terminals, allowing to plug in to the processor... -WIRE Interface. There is a -wire connector on the board, which allow to connect i.e. DS0 thermometer. In this way we can measure temperature... Real Time Clock DS0 The board has one real time clock with accumulator V teh board ca be also supply form accumulator). The clock communicates with the micro through the IC interface. All the connections needed for controlling the DS0 circuit are brought out to the Rtc pin header. The accumulator pin is also placed on the header.

8 .0. LCD display The board has one LCD display interface. The LCD connector has four data lines and two control lines: strobe line E and control line R/S. The dispaly R/W line is permanently connected to ground; all other lines are available at the pin header. The adjustmet of contrast id done by two way: by potentiometr ADJ CONT which output pin ADJC must be then connected with LCD`s pin CONT. programmable,then LCD`s pin CONT must be connected to the processor... Potentiometer ADJ CONT There is a ADJ CONT potentiometer, which allows to control the contrast on LCD. Then output pin ADJC must be connected with LCD`s pin CONT... V potentiometer. The board is equipped with one potentiometer, alowing to regulate voltage between., V ( even if V jumper is closed)..header and connectors..procesor and pheripherals connectors Procesor pins description Vproc- procesor voltage supply ground RST reset XT- clock input XT- clock output RST,XT,XT when not connected, may be used as signal pins PB0...PB procesor port B PD0...PD procesor port D Figure. Procesor connector -segment LED pins A0...A anodes supply A,B,C,D,E,F,DP segments supply (description on the board) Figure.-segment LED connector

9 RS pins RxD, TPD RS signals Figure. RS connector Figure 0. RTC connector Real Time Clock pins VBAT accumulator FT real time clock operation correction line SDA IC real time clock interface data line SCL IC real time clock interface clock line Figure. MISC connector MISC pins SPK speaker ADJ potentiometer REL relay control pin WIRE -WIRE signal LED diodes pins LD0... diodes Switches pins SW0... micro-switches Figure.Diodes and switches..lcd display connector LCD ADJC ADJ CONT potentiometer pin CONT contrast line LCD R/S control line LCD data/order E strobe line LCD D,D,D,D LCD data lines Figure. LCD connector

10 ..Relay connector NO normally open NC normally closed CON common Figure. Relay connector... Programmer`s connector ground voltage supply PB data input line MISO PB programmator`s clock line SCK reset LED line connected with diode LED. During proggraming the diode is lighting. PB programator`s output data line MOSI Figure. ISP programmer`s connector.. Jumpers, supply LED and reset. Jumper name Jumper SUPPLY Function shorted regulated voltage is provided from local power circuitry, open voltage comes from the external power supply. Jumper V jumper shorted power is.v, open V. Jumper when is closed, allowed to causes hardware reset Jumpers XT i XT allow to choose the source of the processor`s clock signal. When it is quartz-controlled, both jumpers should be disconnected. Shorted allowes for the external clock to the processor.. Jumper Load shorted causes loading an accumulator V. Jumper S Jumper S shorted causes that all board is supplied from accumulator V (except processor). when is closed, the processor is supplied from accumulator. ISP LED is lighting during the prorammator work. 0

11 POWER led power LED indicator. pressing this button causes hardware reset.. Demo programs. LCD.c demo of LCD display, there is a moving sign on the display saying "EVBavr0" TERMOMETR.c temperature measurement in [C], the result is displayed on LCD RTC.c demo of real time clock, the program displays the current date in the form: hour : min : day : month : year. The update of the clock settings using the keyboard. Microcontroller's port lines should be connected with the appropriate lines SDL and SCL in circuit DS0 led to pin connectors. LED.c demo of LEDs, four functions chosen from the keyboard, each one causes a different light effect on the diodes.. Available versions. The set EVBavr0 is sold in three versions: Basic, Standard and Advance. Custom orders are also available. The set System EVBavr0 Basic includes: EVBavr0 board, which includes: processor, all connectors, four -segment LEDs, diodes, switches, transmitter,relay, buzzer. Cables to connect peripheral devices CD-ROM with manuals and software The set System EVBavr0 Standard includes: EVBavr0 board, which includes: processor, all connectors, four -segment LEDs,diodes, switches, transmitter, relay, buzzer, potentiometer, DS0 thermometer, RTC with.v accumulator. Cables to connect peripheral devices CD-ROM with manuals and software The set System EVBavr0 Advance includes: EVBavr0 board, which includes: processor, all connectors, four -segment LEDs,diodes, switches, transmitter, relay, buzzer, potentiometer, DS0 thermometer, RTC with.v accumulator, LCD x. Cables to connect peripheral devices CD-ROM with manuals and software

12 Schematic PD0 PD XTAL XTAL PD PD PD PD 0 MCU U 00n C 0 VCC Vproc PD0 PB/SCK PB PD PB/MISO PB XTAL PB/MOSI PB XTAL PB PB PD/INT0 PB PB PD PB PB PD/T0 PB/AIN PB PD PB0/AIN0 PB0 PD PD AT0S00//ATtiny R SWH_ JRST SPEAKER RES.ADJ. RELAY LCD R k 00n C Q BC 00 R 0k SPK R k SPK ADJ R ADJ D Q BC REL REL R 0k R k REL RL RELAY REL R k JP 0 LCD R k 0 Q BC JP Vcc KONTR R/S R/W E D0 D D D D D D D LCD X (optional) G A E C R 0 R 0 R 0 R0 0 CONNECTORS JP A0 A A A 0 SEG R 0 R 0 R 0 R 0 F B D DP SWH_ SWH_ R k 00n C JP REL REL REL REL OSCILATOR REG LM L0 L L L JP L L L L LED XTAL JP0 C p X MHz C p JP XTAL Vproc SWH_ SUPPLY + C 00u C 00n R k REG LM OUT ADJ IN C 00n + C 0u/V B SP K ADJ JP MISC REL WIRE WIRE WIRE R k JP R 00R -WIRE SWH_ V R VPOT R 0 R k BRIDGE SW0 SW SPST JP_S VCC_IN R 0 D ISP PB PB PB R0 00 R 00 R 00 RxD TxD R 00 JP RS JP 0 ISP JP SWITCH -SEGMENT LED POWER LED SW0 SW SW SW SW SW SW SW A0 A A A SW R 0k R 00 SW0 SW0 R 0k R 00 SW SW R 0k R 00 SW SW R 0k R 00 SW SW R0 0k R 00 SW SW R 0k R 00 SW SW R 0k R0 00 SW SW R 0k R 00 SW SW R k G F A B E D C DP 0 LED_SEG 0 D LED0 Q BC R k G F A B E D C DP 0 LED_SEG 0 D LED Q BC R k G F A B E D C DP 0 LED_SEG 0 D LED Q BC R k G F A B E D C DP 0 LED_SEG 0 D LED Q BC R k D0 POWER PD0 PD XTAL XTAL PD PD PD PD VBAT SDA JP 0 0 PROC JP Vproc PB PB PB PB PB PB PB PB0 PD FT SCL RTC LEDS RTC RS R R0 R R R R R R k k k k k k k k D D D D D D D D LED LED LED LED LED LED LED LED L0 L L L L L L L Vproc SW SPDT S D SM Load D SM R VBAT Y.kHz BT AKUV U OSCI OSCO Vbat Vss DS0 Vcc FT/OUT SCL SDA C 00n R R0.k.k R.k FT SCL SDA 00n C C 0n + + C 0n C 0n U C+ V+ C- C+ C- V- Tout Rin ST VCC Tout Rin Rout Tin 0 Tin Rout TxD RxD + C0 0n JP RS C support@propox.com Title: EVBAVR-0-XXX (AVR Evaluation Borard) Size: File: Rev: Date: of