We TARVOS-III User manual

ANR022
RADIO MODULE CROSS MIGRATION
GUIDE
TARVOS-III/TELESTO-III/THEBE-
II/THEMISTO-I TO
THYONE-I
VERSION 1.1
JULY 19, 2023

WIRELESS CONNECTIVITY & SENSORS
ANR022 - Radio module cross migration guide
Revision history
Manual
version Notes Date
1.0 •Initial version January 2023
1.1 •Updated
Important notes and meta data July 2023
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WIRELESS CONNECTIVITY & SENSORS
ANR022 - Radio module cross migration guide
Abbreviations
Abbreviation Name Description
ACK Acknowledgement Radio packet sent back to the transmitter to
acknowledge the reception of data.
CE Conformité
Européene
CE conformity indicates that a product has been
assessed by the manufacturer and deemed to
meet EU requirements. For radio modules this
means beside safety, health and EMC also
spectrum requirements.
CTS Clear-to-Send UART flow control signal line
FCC
Federal
Communications
Commission
FCC regulates interstate and international
communications by radio, television, wire, satellite,
and cable in U.S. territories.
IC Industry Canada Canadian Authority regulating and approving
wireless products certification.
ID Identity document An official document used for identification.
IO Input & Output
LRM Long range mode Special radio profile for large transmission ranges.
PCB Printed Circuit Board
RF Radio frequency Describes wireless transmission.
RTS Request-to-Send UART flow control signal line
RX Receive UART data signal line
SRD Short Range Device Unlicensed frequency bands.
SWD Serial Wire Debug
TELEC Telecom Engineering
Center
TELEC is the main registered certification body for
radio equipment conformity certification in Japan.
TX Transmit UART data signal line
UART
Universal
Asynchronous
Receiver Transmitter
Universal Asynchronous Receiver Transmitter
allows communicating with the module of a specific
interface
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WIRELESS CONNECTIVITY & SENSORS
ANR022 - Radio module cross migration guide
Contents
1 Introduction 4
2 Supported radio modules 5
3 Adapter board 6
3.1 Schematic....................................... 6
3.2 Board ......................................... 7
3.3 Assembly ....................................... 9
3.4 Billofmaterials .................................... 10
4 Replacing by the Thyone-I 11
4.1 Hardwareadaption.................................. 11
4.1.1 Footprint................................... 11
4.1.2 Pinout .................................... 13
4.1.3 Antenna ................................... 14
4.1.4 Tracedesign................................. 14
4.2 Hostfirmwareadaption ............................... 18
4.2.1 Overallbehavior............................... 18
4.2.2 UARTinterface ............................... 18
4.2.2.1 Transparent mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.2.2.2 Commandmode ............................ 19
4.2.3 Radiointerface ............................... 19
4.2.3.1 Network and mesh . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2.3.2 Radiosettings.............................. 20
4.2.4 Timing .................................... 20
4.2.5 Powersavingmodes ............................ 20
4.2.6 Bootmode.................................. 20
5 References 22
6 Important notes 23
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WIRELESS CONNECTIVITY & SENSORS
ANR022 - Radio module cross migration guide
1 Introduction
The radio frequency spectrum is regulated by designated regulatory authorities that define how
specific spectrum bands can be used. As each frequency band has its strength, Würth Elek-
tronik eiSos provides for each frequency band proprietary and standardized radio modules,
which allow the user to decide the best module for the end application. The most common
characteristics to choose radio modules are frequency, energy efficiency, data transmission
rate and transmission protocols.
With the evolution of radio chips, new proprietary and standardized radio modules have been
developed, that are more energy efficient during data transmission and reception. Further-
more new coding and modulation techniques have been added, that allow higher transmission
ranges (long range mode) and/or higher data rates.
Due to the worldwide operation the interest of using the 2.4 GHz frequency band increases.
This application note describes an adapter board, that is used to place a 2.4 GHz Thyone-I
radio module on the footprint of a Tarvos-III/Telesto-III/Thebe-II/Themisto-I radio module.
Furthermore, the steps for hardware and firmware integration to replace an existing Tarvos-
III/Telesto-III/Thebe-II/Themisto-I radio module by a Thyone-I radio module are described.
For reasons of simplicity, in the whole document we use the term sub-GHz pro-
prietary module instead of listing the modules Tarvos-III, Telesto-III, Thebe-II
and Themisto-I.
Due to changes in hardware platform and firmware when replacing a radio mod-
ule, the end device’s radio certification becomes void. A new radio certification
or declaration needs to be acquired by performing actions according to the lo-
cal statutory requirements at the location of deployment. It is advised to go
through the relevant modules to get detailed information on radio certification
and declaration.
To evaluate the migration to Thyone-I, Würth Elektronik eiSos GmbH & Co. KG
is able to provide adapter boards. Please get in contact with your local sales.
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WIRELESS CONNECTIVITY & SENSORS
ANR022 - Radio module cross migration guide
2 Supported radio modules
The supported 2.4 GHz Würth Elektronik eiSos radio modules described in this application
note is the proprietary radio module Thyone-I
Module
Form
factor
[mm2]
Freq.
band
[MHz]
Antenna Protocol Certification
Tarvos-III 27x17 868 50 Ωpad Proprietary CE
Telesto-III 27x17 915 50 Ωpad Proprietary IC FCC
Thebe-II 27x17 868 50 Ωpad Proprietary CE
Themisto-I 27x17 915 50 Ωpad Proprietary FCC IC
Thyone-I 12x8 2440 Smart antenna Proprietary CE FCC IC
TELEC
Table 1: Comparison: Features
Smart antenna connection gives the possibility to either connect the module’s internal antenna
or to use 50 Ohm connection toward an external antenna.
Module VDD [V] ITX
[mA]
IRX
[mA]
ISleep
[µA]
PowerTX
[dBm]
Tarvos-III 2.2 to 3.8 26 8 0.2 14
Telesto-III 2.2 to 3.8 26 8 0.2 14
Thebe-II 2.2 to 3.7 500 12 0.9 27
Themisto-I 2.2 to 3.7 400 12 0.9 25
Thyone-I 1.8 to 3.6 18.9 7.7 0.4 6
Table 2: Comparison: Electrical characteristics
Due to the form factor and pin compatibility, an adapter board is necessary to
use a 2.4 GHz module in the place of sub-GHz proprietary module.
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ANR022 - Radio module cross migration guide
3 Adapter board
3.1 Schematic
Figure 1: Adapter board schematic
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WIRELESS CONNECTIVITY & SENSORS
ANR022 - Radio module cross migration guide
3.2 Board
Figure 2: Adapter board layout
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WIRELESS CONNECTIVITY & SENSORS
ANR022 - Radio module cross migration guide
Figure 3: Top, bottom & internal layers
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ANR022 - Radio module cross migration guide
3.3 Assembly
Figure 4: Assembly
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