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syb
- 单片机开发板的电路图 包含 PCB。。。。U1=89C51 U2=555 U3=MAX232 U4=24C01 U6＝X25045看门狗 X1=共阳数码管 -Single-chip development board contains the circuit PCB. . . . U1 = 89C51U2 = 555U3 = MAX232U4 = 24C01U6 = X25045 watchdog X1 = total yang digital tube
dpjrm
- 单片机入门的书，很适合 初学者，U1=89C51 U2=555 U3=MAX232 U4=24C01 U6＝X25045看门狗 X1=共阳数码管 -Singlechip book entry, it is suitable for beginners, U1 = 89C51U2 = 555U3 = MAX232U4 = 24C01U6 = X25045 watchdog X1 = total yang digital tube
pwm
- 555可调pwm发生器，用单片机控制，89C51-555 Adjustable pwm generator, with MCU control, 89C51
SostikrunningLED
- Running LED display, timing is controlled withthe helpof 555 timer. microcontroller used is 89c51
555-C
- 555定时器基于STC 89C51单片机制作声响和光电报警装置。-555 timer-based STC 89C51 microcontroller produced audible alarm device.
fengx
- 实现风速检测，通过89c51和555定时器在lcd上显示。-Wind speed detection through the 89c51 and 555 timer on the LCD display.