BT1 BATTERY VCC DS1302 U10 Y3 1 VCC VCC1 32.768K 2 X1 RCLK 3 X2 I/O 4 GND RST GND 8 7 6 5 1 2 3 4 GND R7 R8 10K 10K U11 P3.7 P2.1 P2.2 A0 A1 A2 VSS 24CXX VCC WP SCL SDA 8 7 6 5 P2.7 P2.6 P2.0 Q5 9012 R15 1K
RT-OUT1 T-IN1 RT-OUT2 T-IN2 RR-IN1 R-OUT1 RR-IN2 R-OUT2 MAX232
2 4 6 8 10 12 14 16
VCC P2.7 P2.6 P2.5 P2.4 P2.3 P2.2 P2.1 P2.0 P0.2 JP1 P1.5 RST P1.7 P1.6 1 3 5 7 9 MOSI NC RST SCK MISO ISP_10 VCC GND GND GND GND 2 4 6 8 10 GND VCC R12 1k VCC P0.3 R14 1k Q3 PNP
1
2
3
4
5
6
7
8
A
A
J2 S1 3 U1 D1 D2 + 4 3 2 1 GND D+ D1 2 VBUS 4 ANS1 6 5 VCC 1 2 3 4 5 6 7 8 9 1K*8 GND LED
VCC
D1 D2 LED D3 LED D4 LED D5 LED D6 LED D7 LED D8 LED LED P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 GND P0.2 P0.1 P0.0 VCC GND VCC VCC U4 LCD_JP_12864 GND VCC NC RS(CS) R/W(DAT) E(CLK) DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 PSB NC RST NC LED+ LED-
D
1
2
USB
温度传感器
VCC P0.0 R10 1k Q1 PNP 1 4 5 7 U7 TLR0364HRC T1 T2 T3 T4
红外接收
B
C5 GND 104 U2 21 20 19 18 17 16 15 GND 15 C3 104 6 4 U3 GND VCC 16 C6 104 VCC
1 2 3 4 5 6 7
VCC J9
R6 103 R4 1K
GND
VCC D10 1 1N4148 2 3 D11 4 1N4148 GND U9 REF+ VCC IN CLK REF- DATA GND CS TLC1549 VCC 8 7 6 5
SW-PB S5 P3.6 P2.4 P2.5 SW-PB S6 SW-PB
VCC
U12
GND
BUZZER
C
10位串行AD
4 独立按键
4*4矩阵键盘
时钟芯片
eeprom 驱动
蜂鸣器驱动
D
Title Size D Date: File: 3 4 5 6 7 2012-7-1 C:\Documents and Settings\..\1.Sch 8 Sheet of Drawn By: Number Revision
VBUS
R3 10K
C1 GND 10UF/16V
1 3 5 7 9 11 13 15
2 4 6 8 10 12 14源自16USB转串口串口通信
C9 11.0592 33 GND
C10 GND 33
STC89C52
HEADER 8X2
最小系统
ISP下载接口
VCC
GND
S3 SW-PB S4 S7 SW-PB S8 SW-PB S9 SW-PB S10 SW-PB P3.4
1 CON1 C
P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7
Q4 PNP
2 6 9 11 12 3 8 10
CAPCAP 2+
CAP + CAP 1+
2 1
1k
数码管驱动
a b c d e f g dp
电路板仍然有2个小错误 1、ds18b20封装管脚弄错了（实体板已经更正）。 2、矩阵键盘占用P3口，cp2102占用P3.0,P3.1接口， 影响了矩阵键盘的调试。
HEADER J38X2 P1.0 1 P1.1 3 P1.2 5 P1.3 7 P1.4 SW-PB S2 9 C8P1.5 11 10UF/16V P1.6 13 P1.7 15 J4 RST P3.0 1 P3.1 3 R5 P3.2 5 10K P3.3 7 P3.4 9 P3.5 11 P3.6 13 P3.7 15 GND HEADER 8X2 Y2 VCC
U5 2 4 6 8 10 12 14 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 P1.0 VCC P1.1 P0.0 P1.2 P0.1 P1.3 P0.2 P1.4 P0.3 P1.5 P0.4 P1.6 P0.5 P1.7 P0.6 RST P0.7 RXD/P3.0 EA TXD/P3.1 ALT/PROG INIT0/P3.2 PSEN INIT1/P3.3 P2.7 T0/P3.4 P2.6 T1/P3.5 P2.5 RDP3.6 P2.4 WR/P3.7 P2.3 XTAL2 P2.2 XTAL1 P2.1 VSS P2.0 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
D9 VCC R9 1K
GND
R19 VCC 10K
GND
B
USB取电
8 LED
12864液晶显 示
J7 10K*8
LCD1602
P3.5 P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7
USB
F1 NanoSMDC110F
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
GND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
P3.0 P3.1 VCC 28 27 26 25 24 23 22
9 8 7 6 5 4 3 2 1
DTR DSR TXD RXD RTS CTS NC
GND D+ DR1 R2 1R 1R VBUS
VBUS RST NC SUSPEND SUSPEND NC NC
S11 SW-PB S12 SW-PB S13 SW-PB S14 SW-PB P3.5
S15 SW-PB S16 SW-PB S17 SW-PB S18 SW-PB P3.6
S19 SW-PB S20 SW-PB S21 SW-PB S22 SW-PB P3.7 P3.0 C11 P3.1 P3.2 P3.3 GND 30P C12 30P GND
U6 LCD_1602 GND VCC VL RS R/W E D0 D1 D2 D3 D4 D5 D6 D7 BLA BLK P3.2 J8 VCC I/O GND DS18B20 VCC 3 2 1 GND VCC P2.3 3 2 1 U8 LED_RX GND R20 10 VCC GND
P3.4 GND
DCD RI GND CP2101/2 D+ DVDD REGIN
NC NC NC NC NC NC NC
J1 DB9
8 9 10 11 12 13 14
CP2101/2
GND 5 9 4 8 3 7 2 6 1
C4 104 5 14 7 13 8
CAP 2-
CAP 1-
3 11 10 12 9
C7 104 P3.1 P3.0
VCC J5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 VCC HEADER 8X2 J6 VCC P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7
STC89C52
VCC P0.1 R11 Q2 PNP
R21 R22 R23 R24 R25 R26 R27 R28 510 510 510 510 510 510 510 510