16-channel PWM voltage driven by Feather

[subnoize]

Hello!

Stooopid question here; I have a 3.3 volt Feather and I want to use the 16-channel PWM I2C board. The devices being driven by the PWM signal require a 5 volt PWM. I can read that the 16 channel board supplies external power to power the servos but I need to know if the board also bumps up the PWM signal to 5 volts as well?

Thanks,

--jb

[adafruit_support_bill]

The PWM signal will be the same voltage as VCC. So if you power it by 5v, it will have a 5v PWM signal. The down-side is, you will need to use an 2c compatible bi-direcitonal level-shifter to protect the 3.3v pins on the Feather.

[subnoize]

The down-side is, you will need to use an i2c compatible bi-direcitonal level-shifter to protect the 3.3v pins on the Feather.

Yee-ugh! Ok, understood.

I have a bunch of SCR's that require either 4-20 ma or 5 volt (where the PWM stuff comes in) control signals. I guess I could wire up a n-channel MOSFET with a 5 volt DC plug and use that being driven from a 3.3 PWM signal. That would eliminate the problem entirely and move the noisy electrical play out to the end of the cable.

Thanks for the clarification!

--jb

[adafruit_support_bill]

Yea, the further away from that switching noise the better.