Am thinking of using an Audio Injector sound card, which apparently has a two-channel high-precision ADC. In addition I will be needing to read two different variable resistances. One of these has two different values (zero & infinity), and the other has six different values (54 Ω, 147 Ω, 301 Ω, 562 Ω, 1037 Ω, 5057 Ω). I assume this counts as low precision. I only need to read these values a few times per second or so.
Looking at the ADS1115, it seems to be using the I2C pins (SDA & SCL), which I believe the sound card also uses.
Is it possible to use these together? If not, are there any other low-precision (8-bit?) ADC options (i.e. available extension boards)?