AD/DA ADS1015 Conversion Module Subminiature 16-bit Precise Development Board
5,72 €
So you can have up to 4 ADS1015's connected on a single 2-wire I2C bus for 16 single ended inputs. As a nice bonus, it even includes a programmable gain amplifier, up to x16, to help boost up smaller single/differential signals to the full range.
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