arduino通过蓝牙手机端控制三路数字电位器x9c103，inc脚接D4，D7，D10，（控制级数），U/D脚接D3，D6，D9，（控制方向），CS脚接D2，D5，D8，（选择器件），本程序设定30步一次，可以根据需要自行调节，一共100步，如有不周之处还请指教。(Arduino through the Bluetooth mobile terminal control three digital potentiometers x9c103, Inc feet to D4, D7, D10, (Control Series), U/D feet D3, D6, D9, (control direction), CS foot D2, (selection device), the program is set 30 steps, a total of 100 steps, in a total, if there are less weeks. Please teach.)