Oscilloscope USB by Parallax
edcetera
Posts: 1
Hello
I bought a Oscilloscope USB by Parallax and it works only sometimes.
When i use it, it works for about a minute or so then will not work again until I unplug the USB cable and reconnect, even then its hit or miss that it will work, all in all and after hours of trying on 3 different computers, Id say its not working properly...
I am using it to test the signal from a variable reluctor on a Ford engine thats used as crankshaft position signal into a Megasquirt engine management controller.
Channel 1 is connected to the VR sensor and Channel 2 is connected to the microcontroller tach input where the signal has been changed to a square wave.
Theis VR sensor detects a missing tooth on a rotating wheel to determine crankshaft position.
Please reply if you have seen this problem of the Parallax Oscilloscope working intermittently, and if you solved this show stopper of a problem.
Thank you
I bought a Oscilloscope USB by Parallax and it works only sometimes.
When i use it, it works for about a minute or so then will not work again until I unplug the USB cable and reconnect, even then its hit or miss that it will work, all in all and after hours of trying on 3 different computers, Id say its not working properly...
I am using it to test the signal from a variable reluctor on a Ford engine thats used as crankshaft position signal into a Megasquirt engine management controller.
Channel 1 is connected to the VR sensor and Channel 2 is connected to the microcontroller tach input where the signal has been changed to a square wave.
Theis VR sensor detects a missing tooth on a rotating wheel to determine crankshaft position.
Please reply if you have seen this problem of the Parallax Oscilloscope working intermittently, and if you solved this show stopper of a problem.
Thank you