Analog I/O


1 post
by Blars » Sun Aug 28, 2011 7:19 am
Many microcontrolers and some ARM chips offer on-chip analog to digital and
less commonly digital to analog. This is usually an alternative to GPIO selected per-pin. Does the chip selected offer this on the pins available via the GPIO connector, or will we need to use external I2C or SPI converters to get analog I/O. (A PIC or AVR may be the cheapest way to do that.)
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