Phototransistor current - use 5k, not 10k

Official Hardware Kits Starter Kit
1

Hi,

Just to help others: the phototransistors supplied, at least in my starter kit, need a 5k1 resistor, not a 10k resistor as specified in the sample project.

The current supplied by a 10k resistor appears to be too low and all I get is erratic output that constantly varies wildly. Using a lower value resistor solved that perfectly. Took me a few hours of debugging!

-M

1 Like
2

Thanks

3

This topic was automatically closed 120 days after the last reply. New replies are no longer allowed.