I2C Scanner working on Cameras Grove Connector.
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 I managed to get the i2c scanner to work on the cameras grove connecter but still fighting to find the sensors. Add the following to the bottom of Boards.txt in the Arduino>hardware>expressiv>esp32 ############################################################## m5cam.name=M5 Camera m5cam.upload.tool=esptool 
 m5cam.upload.maximum_size=1310720
 m5cam.upload.maximum_data_size=294912
 m5cam.upload.wait_for_upload_port=truem5cam.serial.disableDTR=true 
 m5cam.serial.disableRTS=truem5cam.build.mcu=esp32 
 m5cam.build.core=esp32
 m5cam.build.variant=m5cam
 m5cam.build.board=M5CAMm5cam.build.f_cpu=240000000L 
 m5cam.build.flash_mode=dio
 m5cam.build.flash_size=4MB
 m5cam.build.boot=dio
 m5cam.build.partitions=defaultm5cam.menu.FlashFreq.80=80MHz 
 m5cam.menu.FlashFreq.80.build.flash_freq=80m
 m5cam.menu.FlashFreq.40=40MHz
 m5cam.menu.FlashFreq.40.build.flash_freq=40mm5cam.menu.PartitionScheme.default=Default 
 m5cam.menu.PartitionScheme.default.build.partitions=default
 m5cam.menu.PartitionScheme.no_ota=No OTA (Large APP)
 m5cam.menu.PartitionScheme.no_ota.build.partitions=no_ota
 m5cam.menu.PartitionScheme.no_ota.upload.maximum_size=2097152
 m5cam.menu.PartitionScheme.min_spiffs=Minimal SPIFFS (Large APPS with OTA)
 m5cam.menu.PartitionScheme.min_spiffs.build.partitions=min_spiffs
 m5cam.menu.PartitionScheme.min_spiffs.upload.maximum_size=1966080m5cam.menu.UploadSpeed.921600=921600 
 m5cam.menu.UploadSpeed.921600.upload.speed=921600
 m5cam.menu.UploadSpeed.115200=115200
 m5cam.menu.UploadSpeed.115200.upload.speed=115200
 m5cam.menu.UploadSpeed.256000.windows=256000
 m5cam.menu.UploadSpeed.256000.upload.speed=256000
 m5cam.menu.UploadSpeed.230400.windows.upload.speed=256000
 m5cam.menu.UploadSpeed.230400=230400
 m5cam.menu.UploadSpeed.230400.upload.speed=230400
 m5cam.menu.UploadSpeed.460800.linux=460800
 m5cam.menu.UploadSpeed.460800.macosx=460800
 m5cam.menu.UploadSpeed.460800.upload.speed=460800
 m5cam.menu.UploadSpeed.512000.windows=512000
 m5cam.menu.UploadSpeed.512000.upload.speed=512000Clone the folder varients>esp32 and rename to M5Cam and change static const uint8_t SDA = 21; 
 static const uint8_t SCL = 22;to static const uint8_t SDA = 12; 
 static const uint8_t SCL = 13;recompile and upload and it should now detect any i2c devices connected to the grove connector. 
