@SirMichael Did you not see the GPIo breakout modules or units? Did you looking the MBUS connector?

@felmue OKAY! Excellent. THANK YOU. Didn't understand the USB-C port on the charging base. Figured this all out with your help and appears to need to be fed the power from the included "dumb" USB-A to USB-C cable and not what I thought I could do from an Apple USB-C / USB-C plugged into my MacBook. Problem solved! Thank you again!

@felmue It works in a totally random way, sometimes it gets the answer to the 'GET' and then it enters an infinite loop: AT+CIPRXGET=4,0 07:25:49.725 > 07:25:49.727 > +CIPRXGET: 4,0,0 07:25:49.727 > 07:25:49.727 > OK 07:25:49.727 > AT+CIPCLOSE? 07:25:49.734 > 07:25:49.735 > +CIPCLOSE: 0,0 07:25:49.735 > 07:25:49.735 > OK 07:25:50.219 > AT+CIPRXGET=4,0 07:25:50.226 > 07:25:50.226 > +CIPRXGET: 4,0,0 07:25:50.227 > 07:25:50.227 > OK 07:25:50.228 > AT+CIPCLOSE? 07:25:50.234 > 07:25:50.234 > +CIPCLOSE: 0,0 07:25:50.236 > 07:25:50.236 > OK 07:25:50.720 > AT+CIPRXGET=4,0 07:25:50.727 > 07:25:50.728 > +CIPRXGET: 4,0,0 07:25:50.728 > 07:25:50.728 > OK 07:25:50.728 > AT+CIPCLOSE? 07:25:50.736 > 07:25:50.736 > +CIPCLOSE: 0,0 07:25:50.736 > 07:25:50.737 > OK 07:25:51.221 > AT+CIPRXGET=4,0 07:25:51.229 > 07:25:51.230 > +CIPRXGET: 4,0,0 07:25:51.230 > 07:25:51.230 > OK 07:25:51.230 > AT+CIPCLOSE? 07:25:51.237 > 07:25:51.237 > +CIPCLOSE: 0,0 07:25:51.238 > 07:25:51.238 > OK 07:25:51.722 > AT+CIPRXGET=4,0 07:25:51.730 > 07:25:51.731 > +CIPRXGET: 4,0,0 However, the library must be modified to be able to obtain a communication as it does not connect with the original commands. I think the nb-iot command set in LTE is wrong. It is also my opinion that an nb-iot device without a hardware reset cannot be used seriously. Thanks for the helping.

@rob-biernat you can just make a Flat PCB, bigger than the M5 Stack, and place Terminals there. similar as it is done https://shop.m5stack.com/products/iot-learning-kit

Hi @felmue Friend, thank you very much for your interest in our problems. Cheers.

Have you guys seen this video from Andreas Spiess yet? https://www.youtube.com/watch?v=7bBDMW_m5vc

AtomS3 has MPU6886. umm https://docs.m5stack.com/en/core/AtomS3 Built-in 3-axis gyroscope and 3-axis accelerometer (MPU6886)

Hola @felmue [image: 1723226419489-capture-resized.jpg] Now I did it but it can't be done!

Hi @gewe, what do you want to build? Maybe consider using Arduino as I had no troubles reading out the SHT30 on my PM2.5 with that. Marc

Hello @konacurrents for me both button examples (M5StickCPlus2 library / M5Unified library) work as expected. Are you using the latest version of all the libraries used? Thanks Felix

@felmue oh, nice and inexpensive problem solver product. i will use it. For now i have a extra Power Supply for the S3 Device with 12V2A output and set the external Power in UIFlow to Output Mode, but in the Product Page i read on the End it is for Port A and MBus. The MBus is for the Stacked Devices ? But currently there are not many Stackable Modules out that can be used with UIFlow on the S3. And i think Core 2 Modules will not work with the S3 Device when they can´t be added in UIFlow ?

It works![image: 1720863122434-mod.jpg]

Hello @kumsat hmm, not sure what's going on then. Unfortunately I do not have the RS232F Module 13.2 so I cannot try it myself. Maybe it's time to reach out to M5Stack support? Thanks Felix