It might be easiest to purchase a few multi-channel, 5V compatible A/D
converter ICs that feature an I2C or SPI interface, and use that interface
to connect them to the BB. A quick search at a distributor's website will
give you multiple devices to choose from, like the MCP3002.
On Monday,
A common practice to increase the number of ADC channels is to use an
"Analog Multiplexer" (MUX). Use a few GPIO bits to control the addressing.
You can provide a single point buffer to support the 0-5 to 0-1.8V scaling.
Cheers
On Monday, September 1, 2014 9:47:24 AM UTC-4, jona.he...@gmail.c
