How does the DAC (12 bit) work on the new Photon?

General
1

It Appears there are two pins. Is there any new code required to output the higher resolution, or just the old code, pointing at either of the two pins?

2

pinging @mdma or @brett on this one (both are traveling at the moment)

3

thanks zach, I understand it is a really busy week.

4

When you are using a DAC pin, you can simply write a value from 0 - 4095 to it.

eg. analogWrite(DAC1, 2048);

analogWrite will check if it is a DAC pin and do a HAL_DAC_Write instead of a normal HAL_PWM_Write

Long story short, all you need to do with a DAC pin is to use it normally with a 0-4095 value.

3 Likes
5

^^ Exactly what that man said! :+1: