This module includes an optical pass key and has two digits. We found this circuit in a 1995 documentation. Power can be supplied with voltages from 7 to 20 V using the regulator or 5 V directly. More digits can be added to the original project.
This module includes an optical pass key and has two digits. We found this circuit in a 1995 documentation. Power can be supplied with voltages from 7 to 20 V using the regulator or 5 V directly. More digits can be added to the original project.