M5Stack C-Back NB-loT Global version (SIM7020G) [Discontinued] Brand_PCSensor this is a normal phenomenon

this is a normal phenomenon

and data is 3V logic "TTL" serial

Then follow the worksheets to make your own motorized buggy

HID support: With built-in HID support

creating a tidy all-in-one unit without the need for trailing wires to connect your development board

M5Stack C-Back NB-loT Global version (SIM7020G) [Discontinued] Brand_PCSensor this is a normal phenomenonThe CBack NB IoT is an NB IoT communication module adapted to the M5StickC C Plus series, with a built in SIM7020G module that covers most of the world's Cat NB frequency band. It integrates the SMA external antenna interface, improves the communication quality, and the signal stability of the device. It supports a variety of common IoT communication protocols (MQTT, HTTP, CoAP, etc.), which is suitable for various low latency and low throughput