Introduction

This document is aimed at technical professionals with experience in embedded development, in particular:

• Developers who want to integrate the module into their own product or device
• System integrators who retrofit existing systems with cloud connectivity *OEMs that want to embed a preconfigured wireless module into their devices

Basic knowledge of electronics, UART communication, and embedded C programming is required.

Overview

The YUKI Module A1 is a fully preconfigured wireless module for industrial applications. It enables transparent connection of a device to the cloud without the user having to deal with SIM cards, cellular settings, or network protocols.

Communication with the outside world takes place via a simple UART interface. Using a documented binary protocol, control commands can be sent and status information received. Integration into your own firmware is performed via a supplied C implementation with header file.

The module provides the following integrated functions:

• LTE-M modem for connection to the Coldwave cloud
• GNSS receiver for position determination
• BLE module, e.g. for short-range diagnostics
• Cloud dashboard and REST API for remote maintenance, status display, and configuration

The focus is on easy integration and minimal effort for the user.