Hi all . I am working capacitive touch using pic18 series micro controller. Touch working fine with external dc source but when I am connecting to the mains Ac voltage(230 VAC 50 Hz) sensitivity of the touch board changing.
1) Touch board and micro controller boards are in same pcb but power section and smps are in another pcb.
2) For touch sensing I am using MIcrochip CVD methode .
how to solve this problem ?
1) Touch board and micro controller boards are in same pcb but power section and smps are in another pcb.
2) For touch sensing I am using MIcrochip CVD methode .
how to solve this problem ?
