When trying to run the OLED sample code, nothing shows on the display, but the green power LED comes on.
Trying to run the I2C_Scan.ino sketch doesn't find a connected device.
Hardware:
0.91" OLED
ESP32-S2 QTPY
STEMMA Cable
Software:
Arduino IDE v2
Adafruit Testbed library
The problem showed up when trying to run the sample code for the OLED.
Output from I2C_Scan.ino
Code: Select all
Default port (Wire) I2C scan:
Secondary port (Wire1) I2C scan: 0x3C,
Default port (Wire) I2C scan:
Secondary port (Wire1) I2C scan: 0x3C,