Hello everyone. this is my first post here.
I want to make a logic probe for 5 volt ttl systems.
I thought it'd be cool to make one i could put in a pen.
i see a lot of schematics that would fit in a pen using resistors and op-amps.
the thing is they don't really seem to be specific to ttl logic levels.
would it be practical to build one (hopefully that could fit in a pen cause i think that'd be cool) that would have one led for low ( 0-0.8V) one for undefined ( 0.8-2V ) and one for high
( 2-5V)
id be thankful for any help i could get with this
I want to make a logic probe for 5 volt ttl systems.
I thought it'd be cool to make one i could put in a pen.
i see a lot of schematics that would fit in a pen using resistors and op-amps.
the thing is they don't really seem to be specific to ttl logic levels.
would it be practical to build one (hopefully that could fit in a pen cause i think that'd be cool) that would have one led for low ( 0-0.8V) one for undefined ( 0.8-2V ) and one for high
( 2-5V)
id be thankful for any help i could get with this