我有一把廉价的无线键盘,两节7号电池供电,并且无线信号收发都很不稳定,所以我对它进行了一些改造,使用旧手机锂电池作为无线键盘的电源,为了方便给锂电池充电,我又在电池正负极上并联了一个USB充电线,至于信号不稳定方面的解决方法就是将键盘电路板中天线的部分作一个延伸,就如图片中展示的那样,经过测试,信号变得相当稳定,,改造结束.

I have a cheap wireless keyboard, which is powered by two "AAA" batteries, and the wireless signal transmission and reception are very unstable, so I made some modifications to it.Use the old mobile phone lithium battery as the power supply for the wireless keyboard, To charge the battery, I connected a USB charging cable in parallel to the positive and negative poles of the battery. The solution to the unstable signal is to extend the antenna part of the keyboard circuit board, as shown in the picture, after testing, The signal becomes fairly stable, and the DIY is end.