No devices found on via i2c

Thread Starter


Joined May 13, 2021
So im using the nodemcu and i wanted to find i2c address of my max30102 sensor. I run the code and it says no devices found. My connections seem to be right but i just cant figure out whats the problem. Can anyone help me?

Deleted member 115935

Joined Dec 31, 1969
As an aside,

I keep an old arduino teensey by my side, with a i2c bus sniffer and I2C address sniffer ap on it.

You have just given us a though
may be I could put a real small arduino in a usb key size case...
then it could go on the key ring withthe other USB mst have flash drives.
Uhm, thought for today

As for you last post,
is the sensor acking the I2C or Nacking ?