基于STM32的多路抢答器设计与制作

AbstractResponding not only requires participants,but also the referee,and therole of the referee is the final one in the whole process.He is a very importantfactor affecting the result.In ancient times,the referee can only judge whoresponded first by the naked eye,but the person The ability of the naked eye islimited,it is difficult to accurately draw the correct choice,if there is not muchdifference,the referee will easily misjudge,leading to wrong results and change.With the continuous changes of the times,people also think of many ways toincrease the accuracy of judgments,such as knocking gongs,playing drums,etc.,are applied to the answer.At this time,the referee has one more judgmentpoint,but this is not accurate enough.The probability of misjudgment is stillrelatively large,and with the development of the times,drumming anddrumming and the naked eye have been unable to meet people's demand foraccurate answering.With the development,answering devices based on buttonsand diodes are mainly used.Appeared,it was from the beginning of thesingle-channel key function is simple to multi-channel key function is complex,and then slowly appeared multi-channel answering device with the single-chipas the core,and then transformed into a multi-channel answering device fromwired connection to wireless connection,from The structure is complicated andthe function is simple to the structure is simple and has many functions.It hasbeen constantly improving with the development of the times.The requirementsfor the function of the answering device are growing higher and higher,and theupdating and updating of the answering device are getting faster and faster.Thefunctions and precision of the UPS become more and more.This article is based on the design and production of STM32multi-channel answering device,it supports multi-line answering,you canaccurately determine which way to complete the answering first,people can seewhich one is the first responder through 1602LED LCD display,LED lights,digital,The light in front of the responder will light up,the LED display willshow the information of the responder,the digital tube will show that it canreturn to the countdown,and all the responders cannot operate before the