Case-Door Bell

 

1.   Introduction

This case uses a button to control a doorbell.

44

 

2.   I/O list

Device Registers Description
DI 0 X0 Doorbell button
DO 0 Y0 Doorbell

 

3.   Project

55

 

4.   Explanation

Only when the doorbell is pressing,the bell will ring.In fact,the doorbell works according to doorbell button.