Thread: Download RC-USB Joystick Files
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Old Mar 03, 2008, 11:38 AM
Malc C is offline
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Jeff, that's excelent news, and thanks for some extensive testing with the scope. Looking back at my notes, the original schematic was for a BC547, but as I didn't have one I used a BC550, which worked with my JR and Fitaba TX's.

My guess is that by changing the values of R4 & R5 when using the 2N3904 or BC550 may result in higher voltages at pin 21 of the PIC.

I'll edit the first post to recommend the use of a BC107 or 2N2222 rather then the BC550
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