Introduction - If you have any usage issues, please Google them yourself
combination "61 boards" to complete th ree key functions with voice broadcast electronic bell :// 1, KEY1-- by about players, month, day and broadcast press once,- (I/O A0)// by consecutive 3s, then a state of adjustment adjustment adjustment under the content switching// 2. KEY2-- the year, month, day and hour of the increase in hours (I/O A1)// 3, KEY3--, on that day, when the reduced hours (I/O A2)