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利用单片机IO口直接驱动LCD
- 利用单片机IO口直接驱动LCD，1/2BIAS 1/3DUTY 对于简单的lcd驱动可以省去1621等ic-The use of single-chip IO port directly drive LCD, 1/2BIAS 1/3DUTY save for a simple 1621 and other ic lcd driver
IO-AD-
- A/D 转换的MCU 就能极好地实现，但是也可以使用一些经济的外部器件，由一个标准的数 字I/O 口来实现一个简单的模数转换功能-A/D conversion of the MCU can be an excellent, but can use some of the external components of the economy, by a standard digital I/O port to implement a simple analog to digital conve
IO--SPI
- 单片机IO口模拟SPI程序,程序简单好用，适合初学SPI的学员-Single-chip IO simulation SPI program, the program is simple and easy to use, suitable for beginners SPI trainees
power
- 简易数控直流电源程序，通过扩展8051单片机IO端口控制数码管显示，可产生方波，正弦波，三角波，梯形波等-Simple NC DC power source, through the expansion 8051 IO port control digital display, can produce a square wave, sine wave, triangle wave, trapezoidal wave, etc.
cldzz
- 单片机三个电阻一个电容三个IO口实现简单测温-Three resistors a capacitor three microcontroller IO port for simple temperature