Gravity Sound Level Meter at 3.3
Hi everyone,
I just purchased a gravity sound level meter and everything is ok. However there’s one question. I would like to test it at 3.3v with a arduino nano at 3.3v.
How do I alter the example code to make it work?
The sample code is for 5v.
Best Regards
Norman
I just purchased a gravity sound level meter and everything is ok. However there’s one question. I would like to test it at 3.3v with a arduino nano at 3.3v.
How do I alter the example code to make it work?
The sample code is for 5v.
Best Regards
Norman
2018-04-19 14:57:30 Because you are using Nano, you can change the equation in the code directly to 3.3, which means the equation is: dbValue = voltageValue * 33.0 robert.chen