07-11-2018, 07:59 PM
Hi jlysaght3, sorry I don't have any suggestions. The controller uses the PCA9685 for the LED channels, each channel is good for 25ma and I'm not sure about resistance, here's a link to the datasheet.
I did notice in the datasheet it talks about ground bounce which might have something to do with it.
https://www-users.cs.york.ac.uk/~pcc/Cir...9685_2.pdf
Hope you're able to solve it.
I did notice in the datasheet it talks about ground bounce which might have something to do with it.
https://www-users.cs.york.ac.uk/~pcc/Cir...9685_2.pdf
Quote:Ground bounce is a possibility, especially if all 16 outputs are changed at full current (25 mA each). There is a fair amount of decoupling capacitance on chip (~50 pF), which is intended to suppress some of the ground bounce. The customer will need to determine if additional decoupling capacitance externally placed as close as physically possible to the device is required.
Hope you're able to solve it.
