Up down buttons comon ground

[Bousefield1]

Hi guys I'm doing a billet box clone board swap to a dna60 what I need to know is do the up down use a common ground or do the need to be separated as the switch board in the billet box uses a 3 wire setup

[retird]

https://downloads.evolvapor.com/dna60.pdf

[Spector NS5 RD]

@Bousefield1 Yes the up and down buttons are pull down and use a common ground, any GND on the board or batt negative. Fire switch is.......pull-up to batt + voltage (at least on the 200-250-75 boards)