M5Stack
M5Stack is a modular stackable Developer Kit based on ESP32 core processor. It does not embed a Cellular Module but it allows very easy testing through stackable Cellular Modules (prepackaged or to be easily assembled).
It provides a powerful processor with embedded WIFI and BT, a screen, input buttons, lots of I/O. This allows to quickly assemble a demo/ prototype device which can be used to verify the Enterprise Use cases without additional visualization and input terminals to be connected, and using the embedded WIFI/BT wireless connectivity to extend the reach to additional RF Sensors.
The Developer Kit could be used to build demo and prototype devices, and comes with embedded:
- 5V DC power supply
- USB Type-C
- ESP32-based
- 4 MByte flash + 520K RAM
- Speaker, 3 Buttons, LCD(320*240), 1 Reset
- 2.4G Antenna: Proant 440
- TF card slot (16G Maximum size)
- Battery Socket & 150 mAh Lipo Battery
- Extendable Pins & Holes
- Grove Port
- M-Bus Socket & Pins
All the Information on how to order and use this module are reported in the M5Stack Home page:
https://m5stack.com/
In order to be used as an IoT Accelerator Developer Kit, M5Stack should be complemented with a stackable Mobile Broadband Communication Module.
Some examples:
COMX GSM/GPRS Module:
https://docs.m5stack.com/#/en/module/comx_gsm
COMX NB-IoT Module:
https://docs.m5stack.com/#/en/module/comx_nb-iot
COMX LTE(4G):
https://docs.m5stack.com/#/en/module/comx_lte
COMX LTE-DATA):
https://docs.m5stack.com/#/en/module/comx_lte-data
Or, as an alternative, any kind of Communication Module could be soldered on the prototype board:
https://m5stack.com/collections/m5-module/products/proto-module

Interoperability of M5Stack COMxLTE module with IoT Accelerator – HTTP and TCP
The video demonstrates the interworking between IoT Accelerator and the M5Stack COMxLTE module by means of both HTTP and TCP protocols.
The scenario shown in the video is implemented with M5Stack UIFlow development environment and their validation leveraging on IoT Accelerator Service Portal.
Ericsson IoTA working with M5Stack COM.LTE Tutorial – HTTP and TCP
This document aims to guide the developer in setting up the M5Stack module and replicating the use case described in the document Interoperability of M5Stack COMxLTE module with IoT Accelerator.
Download the tutorial
Download the UIFlow code used in the tutorial
Interoperability of M5Stack COM.LTE module with IoT Accelerator with TCP and HTTP stacks
This document is a test report that describes two scenarios to validate HTTP and TCP protocols (provided by COMxLTE) leveraging on IoT Accelerator service portal and implemented with M5Stack UIFlow development environment.
Interoperability of M5Stack COMxLTE module with IoT Accelerator - MQTT
Ericsson IoTA working with M5Stack COM.LTE Tutorial - MQTT
This document aims to guide the developer in setting up the M5Stack Module to work with IoT Accelerator and an MQTT server, replicating the use case described in the document "Interoperability of M5Stack COM.LTE module with IoT Accelerator".
Download the tutorial
Download the UIFlow code used in the tutorial
Interoperability of M5Stack COM.LTE module with IoT Accelerator with MQTT stack
This document is a test report that describes a scenario to validate MQTT protocol (provided by COMxLTE) leveraging on IoT Accelerator Service Portal and implemented with M5Stack UIFlow development environment.