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Posted by Dave (61.9.128.173) on May 22, 2003 at 11:05:53:
In Reply to: Re: Toms Joystick port input schem - output ? posted by Tomi Engdahl on May 22, 2003 at 02:56:54:
Hi Tom
: : Does that output from the circuit go to pot input and gnd to PC gnd
: Yes.
Thanks you for answering that
It seems to be working although Ive made a few errors.
I only had a 3V3 Zener not a 2V2
Also I put in 1.5K resistors instead of 1k
Not sure what effect using 1.5K resistros has done to it.
Should I fit 1K instead ?
It only measures 5v to 6.7 full scale.
I assume this is because of the 3V3 zener.
Can I ask you, will using 13v from a wall plug pack instead of 9v battery work and will it raise the volt testing limit of the circuit to 5v to 9.7 full scale.
Not sure if this is supposed to measure under 5v but it doesnt seem to.
Also while not testing the input to the joystick goes open and windows cant see the joystick unless I have a voltage being tested on the input to the circuit.
As I see it i cant just use a 100K res from 5v computer to joystick as normal to resolve that.
Thanks for your time I appreciate it.
Cheers