Loudness sensor, Lotus / Grovepi and signal quality #46
Description
I'm using the Loudness sensor to detect environmental volume.
I've started using it with the groovepi, via python from the raspii to monitor the environment continually. I've noticed that it doesn't reliably deliver a good signal so I started digging deeper.
I found that the Lotus is really compareable to the grovepi, so I wanted to retry with it, put a usual level converter to attach it to the Raspi I2C, and it worked with the grovepi firmware. However, the values delivered from the loudness sensor were even less reliable.
I've retried using the lotus alone with usb attached to a host and the values output would be reliable. But, even once I would connect the i2c (without even using it) the values would become unreliable again.
When I simply attach a pot to the analog in to the lotus or the grovepi it will give reliable values..
So, my assumption is, that the digital i2c couples into the loudness sensor and voids its values. Please advise whether there is an easy way to fix the sensor.