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WIRELESS CONNECTIVITY & SENSORS

ANR022 - Radio module cross migration guide

Pin

No.

Thyone-I

sub-GHz proprietary

module

Description

22

Not

connected

RESERVED

on sub-GHz

proprietary module

ANT-CTRL

on Adapter

board

ANT-CTRL

Pin 22

of the adapter

board controls RF switch to change
between antenna

23

GND

GND

Ground

i1

SWDIO

TEST

Debug Interface

i2

SWDCLK

TEST

Debug Interface

i3

Not

connected

TEST

i4

Not

connected

TEST

Table 3: Pin mapping between Thyone-I and

sub-GHz proprietary module

4.1.3 Antenna

Using the adapter board along with Thyone-I module, the option to switch between internal and
external antenna connection is available. The

ANT

pin (No.1, Ext_ANT in the schematic) of

the adapter board is used for an external antenna connection matched to 50

.

The

ANT-CTRL

pin (No.22) is used to switch between Thyone-I on-board PCB antenna and

the external antenna pin

Ext_ANT

of the adapter board.

The

ANT-CTRL

pin (No.22) has an internal pull-down resistor and selects in-

ternal PCB antenna by default. An external pull-up resistor on this pin shall be
avoided.

By applying a high logic level to the

ANT-CTRL

pin, the

ANT

Pin of the adapter board can

be used for external antenna connection. If

Pin 22

is left open or a low level is applied, the

Thyone-I on-board PCB antenna is used.

4.1.4 Trace design

Thyone-I Module itself complies with FCC and IC certification. For evaluation purpose, the
adapter board uses an IC to switch between the on-board PCB-antenna of the Thyone-I mod-
ule and the external RF PAD connection. Due to which the adapter board differs from the trace
design and is not approved to be FCC and IC compliant.

14

Version 1.1, July 2023

www.we-online.com/wcs

Summary of Contents for TARVOS-III

Page 1: ...ANR022 RADIO MODULE CROSS MIGRATION GUIDE TARVOS III TELESTO III THEBE II THEMISTO I TO THYONE I VERSION 1 1 JULY 19 2023...

Page 2: ...ENSORS 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 1 Version 1 1 July 2023...

Page 3: ...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 Specia...

Page 4: ...dware adaption 11 4 1 1 Foot print 11 4 1 2 Pinout 13 4 1 3 Antenna 14 4 1 4 Trace design 14 4 2 Host firmware adaption 18 4 2 1 Overall behavior 18 4 2 2 UART interface 18 4 2 2 1 Transparent mode 18...

Page 5: ...ency 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...

Page 6: ...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 connec...

Page 7: ...WIRELESS CONNECTIVITY SENSORS ANR022 Radio module cross migration guide 3 Adapter board 3 1 Schematic Figure 1 Adapter board schematic 6 Version 1 1 July 2023 www we online com wcs...

Page 8: ...WIRELESS CONNECTIVITY SENSORS ANR022 Radio module cross migration guide 3 2 Board Figure 2 Adapter board layout 7 Version 1 1 July 2023 www we online com wcs...

Page 9: ...WIRELESS CONNECTIVITY SENSORS ANR022 Radio module cross migration guide Figure 3 Top bottom internal layers 8 Version 1 1 July 2023 www we online com wcs...

Page 10: ...WIRELESS CONNECTIVITY SENSORS ANR022 Radio module cross migration guide 3 3 Assembly Figure 4 Assembly 9 Version 1 1 July 2023 www we online com wcs...

Page 11: ...th Elektronik 885012005027 C4 n m C0402_IPC C5 1 F C0402_IPC W rth Elektronik 885012105012 C30 100nF C0402_IPC W rth Elektronik 885012205037 C38 100pF C0402_IPC W rth Elektronik 885012005031 IC1 RF Sw...

Page 12: ...e of the mentioned sub GHz proprietary modules by a Thyone I 2 4 GHz module The adapter board allows the user to test the possibility of migrating from sub GHz proprietary module to Thyone I The user...

Page 13: ...181000 Tarvos III and 2609011191000 Telesto III an external antenna matched to 50 can be connected at this pin The second variants 2609011081000 Tarvos III and 2609011091000 Telesto III offers an inte...

Page 14: ...SERVED 10 Not connected RESERVED 11 BUSY RESERVED 12 BOOT BOOT The BOOT pin is used to enable the bootloader for firmware updates Boot pin operation is inverted between the modules please look into th...

Page 15: ...nection matched to 50 The ANT CTRL pin No 22 is used to switch between Thyone I on board PCB antenna and the external antenna pin Ext_ANT of the adapter board The ANT CTRL pin No 22 has an internal pu...

Page 16: ...designs Figure 7 Trace design Layout Figure 8 Reference design Stack up Top layer is used for routing filled with ground plane except area under the module and antenna free area Second layer is fille...

Page 17: ...WIRELESS CONNECTIVITY SENSORS ANR022 Radio module cross migration guide Figure 9 Trace design Schematic 16 Version 1 1 July 2023 www we online com wcs...

Page 18: ...end application C27 and C26 can be assembled The exact values of C27 and C26 shall be specified in the end application corre sponding to the individual need Figure 10 On board PCB antenna For the exte...

Page 19: ...n running a firmware update via the UART interface Both the Thyone I as well as the sub GHz proprietary module provide a transparent mode and command mode Transparent mode All bytes sent to the radio...

Page 20: ...rc Addr RSSI Payload CS 0x02 0x84 2 Bytes 4 Bytes 1 Byte Length 5 Bytes 1 Byte Table 6 CMD_DATA_IND command of the Thyone I Start signal Command Length Payload RSSI CS 0x02 0x81 1 Byte Length 1 Bytes...

Page 21: ...he transmission range and current consumption when trans mitting Thus the behavior of both radios is the same except of the used channel and data rate and the resulting range and current consumption 4...

Page 22: ...tary module a replacement by the Thyone I is not possible as the Thyone I would always start in boot mode If the Boot pin is hardwired on the Host PCB adapter board design shall be modified by inte gr...

Page 23: ...nectivity SDK for Raspberry Pi Radio module drivers in C code https github com WurthElektronik WirelessConnectivity SDK 2 W rth Elektronik Wireless Connectivity SDK for STM32 Radio module drivers in C...

Page 24: ...TS OR THE MERCHANTABILITY OR FITNESS FOR A PURPOSE OR USAGE WE EISOS DOES NOT WARRANT OR REPRESENT THAT ANY LICENSE EI THER EXPRESS OR IMPLIED IS GRANTED UNDER ANY PATENT RIGHT COPYRIGHT MASK WORK RIG...

Page 25: ...gher safety standard and reliability standard is especially required or where a failure of the components is reasonably expected to cause severe personal injury or death unless WE eiSos and customer h...

Page 26: ...sign Schematic 16 10 On board PCB antenna 17 11 External antenna connection 17 12 Boot pin modification 21 List of Tables 1 Comparison Features 5 2 Comparison Electrical characteristics 5 3 Pin mappin...

Page 27: ...ontact W rth Elektronik eiSos GmbH Co KG Division Wireless Connectivity Sensors Max Eyth Stra e 1 74638 Waldenburg Germany Tel 49 651 99355 0 Fax 49 651 99355 69 www we online com wireless connectivit...

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