<![CDATA[Problem with Ultrasonic I2C]]>Hello everyone,

I am new to M5Stack.

I have a Core 2 and the Ultrasonic i2c connected to it. Now I have the problem that the value on the Core 2 always shows -1. Am I doing something wrong when setting it up?
Connect, select unit, then insert the blocks, upload code.

Thank you in advance for your help.

Screenshot 2026-01-13 194529.png

]]>https://community.m5stack.com/topic/8018/problem-with-ultrasonic-i2cRSS for NodeWed, 29 Apr 2026 06:47:59 GMTTue, 13 Jan 2026 18:46:44 GMT60<![CDATA[Reply to Problem with Ultrasonic I2C on Thu, 22 Jan 2026 13:44:30 GMT]]>@maiknaef Hello.
I have same problem with AtomS3, nanoC6 and Atom lite and Din Meter.
However M5dial works fine. I tested Uiflow2.4.0 and 2.4.1.
It is strange because M5dial and M5Din meter are uses StampS3.
Sorry I have no idea at this moment, however hopefully it solved in future.

]]>https://community.m5stack.com/post/30507https://community.m5stack.com/post/30507Thu, 22 Jan 2026 13:44:30 GMT