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General Mach Discussion / Re: Laser control on and off using Z
« on: March 01, 2017, 02:15:54 AM »
Hi Boxin,
Firstly, connect a multimeter to the 5 Volt supply from your ATX and confirm that the voltage remains constant
If that is OK then measure the direction signal TTL voltage from your BoB - it could be that it does not have persistent TTL levels for the direction signal output (as you suspect).
Tweakie.
Firstly, connect a multimeter to the 5 Volt supply from your ATX and confirm that the voltage remains constant
If that is OK then measure the direction signal TTL voltage from your BoB - it could be that it does not have persistent TTL levels for the direction signal output (as you suspect).
Tweakie.