Trigger Timer Module wiring and setting HCW-M421 for Arduino and other projects

This is a HCW-M421 timer module to be use with individual projects and also with other micro controller such as arduino for trigger relay delay stop and open time for most of the projects such as simple as pedestrian crossing. The setting for the trigger is P2 and the setting can be set from 00.1 seconds upto 999 minutes. As soon it gets trigger it will turn the stop time and then open time for the set parameters. I show the simple method to wiring and setting of this module relay which can be used with other same timer relays as well.