Have successfully used a Grove Light Sensor v.1.1 on the m5stick to get a report of light input (off of GPIO13). However, when I add BLE features to my sketch (e.g., BLEDevice.h, BLEUtils.h, BLEServer.h), it seems that GPIO13 pin is held high (non-responsive to ambient light anymore)... Does activating BLE on the ESP32 screw up with service to GPIO13 pin?

Any help for a n00b much appreciated, dsiderov