April 2015

DocID027779 Rev 1

1/8

8

UM1889

User manual

SP1ML modules getting started guide FW upgrade & simple

communication setup

Introduction

This document is a quick user guide explaining how to upgrade the FW in ST sub-GHz

modules SP1ML-868 and SP1ML-915 (hereafter referred to as SP1ML), and evaluation

tools STEVAL-SP1ML868 and STEVAL-SP1ML915 (hereafter referred to as STEVAL-

SP1ML).

It also provides a possible setup to quickly establish communication between two modules

using AT commands.

The SP1ML-868 and SP1ML-915 are complete RF modules based on the SPIRIT1

transceiver with integrated voltage regulation, antenna, crystal and STM32L1

microcontroller, in a compact surface-mount module form-factor.

The UART host interface allows simple connection to an external microcontroller.

Access to module features is provided through an extended AT command set.

Figure 1. SP1ML module

www.st.com