if(t>2800) { ledr=1; ledg=0; ledy=0; re=1; le=0; buzz=1;

}

}

void main( ) { lcd_init( ); ledg=0; ledy=0; ledr=0; re=0; le=0; buzz=0; while(1) { tempchange( ); temp_rec( ); shujucl( ); xianshi( ); led();

}

}

陕西理工学院毕业设计

第47页 共48页

陕西理工学院毕业设计

附录E 元器件清单

C1 元器件清单

Comment Cap Cap Pol1 LED2 LED1 LED0 Component_1 Speaker DS18B20 Res2 Res Tap Res3

Capacitor

Polarized Capacitor (Radial) Typical INFRARED GaAs LED Typical INFRARED GaAs LED Typical INFRARED GaAs LED

Loudspeaker Header, 3-Pin Resistor Tapped Resistor Resistor

8-Bit AVR Microcontroller with 8K

AT89C51

Bytes of In-System Programmable Flash Memory

XTAL

Crystal Oscillator

Y1

R38

XTAL

1

U1

40P6

AT90S8515-8PI

1

Description

Designator C1, C2 C3 D D1 D2 LCD1602 LS P R1, R2 R3 R4

Footprint RAD-0.3 RB7.6-15 LED-0 LED-0 LED-0 PIN2 HDR1X3 AXIAL-0.4 VR3 J1-0603

Cap Cap Pol1 LED0 LED0 LED0 Component_1 Speaker Header 3 Res2 Res Tap Res3

LibRef

Quantity 2 1 1 1 1 1 1 1 3 1 1

第48页 共48页