AVR单片机对数字电位器的I2C读写的程序-AVR single-chip microcomputer of the I2C Digital Potentiometers to read and write procedures

AD5270数字电位器的驱动程序，通过单片机方便的通过程序改变AD5270的电阻值，配合其他器件工作。(AD5270 digital potentiometer driver, use microcontroller, convenient changing the resistance value of the AD5270 by a program, work with other devices.)