Emlid M2 how to activate the timemark with a button

[antezanaidel (Idel Abner Antezana Izquierdo)]

Shorting C1 Ground and timemark pins using led light

Hi! Thanks for pointing out the 3.3V maximum voltage! That save me from frying my M2. If I want to see how the time mark works I can just follow the general illustration I made below, make sure satellites are properly communicating with the M2 and I should see the dip in signal in reachview, right? As you pointed out maximum of 3.3v, what could be the least voltage that will trigger the time mark? Thanks. [image]