基于51单片机的无线表决器 用51和NRF24L01做的，比较实用-More practical, based on 51 single-chip wireless voting Used 51 and NRF24L01.

8人智能表决器，抢答器，应用于晚会，问答现场。速度快，精度高-8 intelligent voting machine, responder, used in the party scene, quiz. High speed, high precision