One more thing I've discovered: it depends on how many lights are lit on the I2C board. Once all the lights are lit, the analog pin reads full. When only a couple of lights are lit, the values are lower. It is like the voltage going into the mic is higher when the lights are brighter.
For curiosity sake, I tried the same thing on a different Arduino (Adafruit Feather 32u4) with the same result (so it isn't my Arduino).
One more thing I've discovered: it depends on how many lights are lit on the I2C board. Once all the lights are lit, the analog pin reads full. When only a couple of lights are lit, the values are lower. It is like the voltage going into the mic is higher when the lights are brighter.
For curiosity sake, I tried the same thing on a different Arduino (Adafruit Feather 32u4) with the same result (so it isn't my Arduino).
UPDATE: It appears to be something with the way Adafruit uses the Wire library. I have a similar problem when I use the Adafruit 7-segment library, when I use their MCP23017 library.
But it is wiring related too. If I uncomment the commented out line above but disconnect the I2C device the analog input starts working again.
UPDATE: It appears to be something with the way Adafruit uses the Wire library. I have a similar problem when I use the Adafruit 7-segment library, when I use their MCP23017 library.
But it is wiring related too. If I uncomment the commented out line above but disconnect the I2C device the analog input starts working again.
