I2C Scanner working on Cameras Grove Connector.



  • 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=true

    m5cam.serial.disableDTR=true
    m5cam.serial.disableRTS=true

    m5cam.build.mcu=esp32
    m5cam.build.core=esp32
    m5cam.build.variant=m5cam
    m5cam.build.board=M5CAM

    m5cam.build.f_cpu=240000000L
    m5cam.build.flash_mode=dio
    m5cam.build.flash_size=4MB
    m5cam.build.boot=dio
    m5cam.build.partitions=default

    m5cam.menu.FlashFreq.80=80MHz
    m5cam.menu.FlashFreq.80.build.flash_freq=80m
    m5cam.menu.FlashFreq.40=40MHz
    m5cam.menu.FlashFreq.40.build.flash_freq=40m

    m5cam.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=1966080

    m5cam.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=512000

    Clone 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.


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