This Board was designed for use as Audio per-amplifier controller providing digital on off, channel select function, later I made changes, made this as separate module instead of including with analog circuit.
I will be using this module in Audio Channel Selector Circuit, This module can be for different purpose.
JP1, JP2 and JP3 can be used for connecting LED, Switch, serial communication . there is separate LCD connector for 2 line LCD. COM1 provides rx and tx for serial communication (RS232 Driver required)