@firehopper never mind, had wrong joyc firmware loaded.. all good now.

I just go my rover c and joyc .. loaded the firmware on each one, but Cant figure out how to get the 2 to talk to each other
says hold a5, which button is that? please help

@hague that fixed it, thanks!

I dont know if this is the right place to post it but.

I downloaded the newest files for joyC and roverC due to the fact my roverC and joyC should be arriving soon, roverC does compile. joyC does not. the errors I get.

Arduino: 1.8.9 (Windows 10), TD: 1.47-beta7, Board: "M5Stick-C, Default, 1500000, None"

C:\Users\admin\AppData\Local\Temp\arduino_build_959934\sketch\JoyC.cpp: In member function 'void JoyC::SetLedColor(uint32_t)':

JoyC.cpp:31:8: error: 'class M5StickC' has no member named 'I2C'

 M5.I2C.writeBytes(JOYC_ADDR, JOYC_COLOR_REG, color_buff, 3);

    ^

C:\Users\admin\AppData\Local\Temp\arduino_build_959934\sketch\JoyC.cpp: In member function 'uint8_t JoyC::GetX(uint8_t)':

JoyC.cpp:39:8: error: 'class M5StickC' has no member named 'I2C'

 M5.I2C.readByte(JOYC_ADDR, read_reg, &value);

    ^

C:\Users\admin\AppData\Local\Temp\arduino_build_959934\sketch\JoyC.cpp: In member function 'uint8_t JoyC::GetY(uint8_t)':

JoyC.cpp:48:8: error: 'class M5StickC' has no member named 'I2C'

 M5.I2C.readByte(JOYC_ADDR, read_reg, &value);

    ^

C:\Users\admin\AppData\Local\Temp\arduino_build_959934\sketch\JoyC.cpp: In member function 'uint16_t JoyC::GetAngle(uint8_t)':

JoyC.cpp:57:8: error: 'class M5StickC' has no member named 'I2C'

 M5.I2C.readBytes(JOYC_ADDR, read_reg, 2, i2c_read_buff);

    ^

C:\Users\admin\AppData\Local\Temp\arduino_build_959934\sketch\JoyC.cpp: In member function 'uint16_t JoyC::GetDistance(uint8_t)':

JoyC.cpp:66:8: error: 'class M5StickC' has no member named 'I2C'

 M5.I2C.readBytes(JOYC_ADDR, read_reg, 2, i2c_read_buff);

    ^

C:\Users\admin\AppData\Local\Temp\arduino_build_959934\sketch\JoyC.cpp: In member function 'uint8_t JoyC::GetPress(uint8_t)':

JoyC.cpp:73:8: error: 'class M5StickC' has no member named 'I2C'

 M5.I2C.readByte(JOYC_ADDR, JOYC_PRESS_REG, &press_value);

    ^

Using library M5StickC at version 0.1.1 in folder: C:\Users\admin\Documents\Arduino\libraries\M5StickC
Using library Wire at version 1.0.1 in folder: C:\Users\admin\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\Wire
Using library SPI at version 1.0 in folder: C:\Users\admin\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\SPI
Using library FS at version 1.0 in folder: C:\Users\admin\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\FS
exit status 1
'class M5StickC' has no member named 'I2C'

let me know what I need to do to fix it? there doesnt seem to be a update for the m5stickC lib so not sure what else to do..

okay apparently my issue was a bad driver for the silicon labs cpxxx chip, installed a new driver and it seems to work now.

I get this error when trying to upload a program to the m5stack fire.
A fatal error occurred: Failed to connect to Espressif device: Invalid head of packet (0x0D)

esptool.py v2.6
Serial port COM1
Connecting............................____.....
Chip is ESP32D0WDQ6 (revision 1)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
MAC: 24:0a:c4:a6:55:34
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 921600
Changed.
Configuring flash size...
Warning: Could not auto-detect Flash size (FlashID=0xffffff, SizeID=0xff), defaulting to 4MB
Compressed 8192 bytes to 47...

A fatal error occurred: Timed out waiting for packet content
A fatal error occurred: Timed out waiting for packet content