Does it have an ADC/A2D?

I thought the ARM spec calls out for ADC/DACs does the Raspberyy PI have these? I couldn't find any mention of them on the datasheets, just regular GPIO.

Parents

e14 Contributor over 14 years ago

Unfortunately not - the easiest way is to use an SPI or I2C ADC or DAC device connected to the GPIO.

There are to PWM channels that give 'moderate grade' audio - you might be able to use these for something else but they are A/C coupled to the outside world.
Cancel
Vote Up +2 Vote Down

Sign in to reply

Cancel
fustini over 14 years ago in reply to e14 Contributor

Thanks for the explanation, Pete. I had been wondering the same but hadn't been able to deduce that by comparing the datasheet with the pinout. Since the PWM is A/C coupled, would it not be possible then to use it to fade an LED or control a servo?
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel

Reply

fustini over 14 years ago in reply to e14 Contributor

Thanks for the explanation, Pete. I had been wondering the same but hadn't been able to deduce that by comparing the datasheet with the pinout. Since the PWM is A/C coupled, would it not be possible then to use it to fade an LED or control a servo?
Cancel
Vote Up 0 Vote Down

Sign in to reply

Cancel

Children

No Data