锦锐51触摸单片机，可以做触摸圆环，新一代流行的触摸芯片，多PWM，比较灵活来做各类产品，小家电的，大家可以看(CA touch microcontroller, you can do touch ring, a new generation of popular touch chip, multi PWM, more flexible to do all kinds of products, small appliances, you can see)