How can i connect the two units by I2C?

[Mbincao]

Describe the bug

only one can work,

To reproduce

7db1b98a1f71f03cb2556a889219c1ca.mp4

Expected behavior

Screenshots

No response

Environment

• OS:
• IDE &IDE Version:
• Repository Version:

Additional context

No response

Issue checklist

• I searched for previous reports in the issue tracker
• My report contains all necessary details

[TinyuZhao]

joystick2.begin (&Wire,JOYSTICK2_ADDR, 2, 1) ；//portA 2,1 //portB 9,8 //portC 17,18

change to
joystick2.begin (&Wire1,JOYSTICK2_ADDR, 2, 1) ；//portA 2,1 //portB 9,8 //portC 17,18

[Mbincao]

but it still doesn't work,when i change to wire1,and the value of joysticks doesn't work
and then i put on the joysticks, the uart port detect

[TinyuZhao]

Can't see your picture
Try again without using the M5CoreS3 library.

[Mbincao]

I commented on these lines of code.the power of control.uart can get the value,but why the display can't
// //配置电源
// auto cfg = M5.config();
// // cfg.output_power = true;
// CoreS3.begin(cfg);
// CoreS3.Display.setTextSize(2);

[TinyuZhao]

😂Is there a possibility that M5CoreS3 can control the screen? Of course it cannot be used as you commented.

[TinyuZhao]

You are using I2C communication, why did UART suddenly appear?

[Mbincao]

oh,sorry,i use the Serial Port Debugging Assistant to see the result

[TinyuZhao]

M5CoreS3 internally calls M5Unified, M5, and a series of initialization operations are performed when begin. A certain set of I2C may be enabled by default, causing conflicts. Therefore, you cannot use Wire and Wire1 at the same time after enabling M5.begin.

[Mbincao]

i mean when i didn't comment the code,it's value didn't change as i control the joysticks

[TinyuZhao]

也许你可以尝试
sensor.begin (&Wire1,SCROLL_ADDR, 17, 18)
joystick2.begin (&wire,JOYSTICK2_ADDR, 2,1)

[Mbincao]

when you change another,the other doesn't work,it's so wired

[TinyuZhao]

那是不是如果不使用M5CoreS3这个库,两个模块都可以用

[Mbincao]

可能是调用了这个显示屏的缘故，我注释了显示屏供电后串口就可以正确读取数据了

[TinyuZhao]

显示屏用的是M5Unified, M5.Begin后 Wire1默认被使用, 所以你再用Wire1可能就会有问题了

[Mbincao]

主要想问问是传输数据有问题吗，具体该咋解决？