Introduction - If you have any usage issues, please Google them yourself
The use of the keyboard interrupt programming to perform the following functions: (1) ranked in the LCD display " TJU EIE05 xxxxxx" , which indicated that school No. xxxxxx, the next row shows the right side of the key button 1 ~ 9. (2) 1 row of keys on the left shows the contents of 1 operation, 2 under the row of the left button to display the contents of an operation carried out by a number of changes in the range of 0 ~ 8 between the initial value is 0.