Hi!, i’m trying to visualize the SDA/SCL signals from the Photon’s I2C interface using an oscilloscope. For that purpose, i’m running an scanner code on the photon, and i have connected a 5,1kohm resistor both between SDA/SCL pins and the 3V3 pin from the photo device with USB power supply.However, when running the scanner code, the SDA/SCL signals just appear as a constant 3V on the oscilloscope. what i am doing wrong on order to visualize the SDA/SCL signals?. thanks
Are you sure the scanner code is running?
It would be better if you told us what pins your using, and posted the code.