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3.2 Connectors and pin headers

Figure 6: Connectors and pin headers

The table

lists the pin headers assembled on the evaluation board by default. All the com-

ponents listed in the table

are SMD components.

Pin header

Function

Pins

WE article number

P3

TTL-232R-3V3 FTDI cable
connection / Access to module pins

1X6

P5

External power supply GND

1X4

P4

External power supply 3V

1X4

JP1

Power supply selection

1X6

Table 3: Default assembled connectors

Thetis-I Mini Evaluation Board user manual version 1.0

© February 2021

www.we-online.com/wireless-connectivity

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Summary of Contents for THETIS-I

Page 1: ...THETIS I MINI EVALUATION BOARD USER MANUAL FOR RADIO MODULES EV Order Code Module order code Product Name 2611109021011 2611011021010 Thetis I VERSION 1 0 FEBRUARY 12 2021 ...

Page 2: ...eet and user manual This is especially important for Wireless Connectivity products that were not purchased directly from Würth Elektronik eiSos A firmware update on these respective products may be required We strongly recommend to include in the customer system design the possibility for a firmware update of the product ...

Page 3: ...Revision history Manual version HW version Notes Date 1 0 1 0 Initial version February 2021 Thetis I Mini Evaluation Board user manual version 1 0 February 2021 www we online com wireless connectivity 1 ...

Page 4: ...nal level that corresponds to 0 V HIGH High signal level IO Input Output JTAG Joint Test Action Group LDO Low Dropout LED Light Emitting Diode LFCLK Low frequency clock LFXO Low frequency crystal oscillator LOW Low signal level MCU Micro Controller Unit MSAP Management Service Access Point UART control command for module management NPO Negative Positive 0 OTA Over the air PC Personal Computer PCB ...

Page 5: ...tter Universal Asynchronous Receiver Transmitter allows communicating with the module of a specific interface USB Universal Serial Bus VDD Voltage Drain Drain Supply voltage WE Wuerth Elektronik Thetis I Mini Evaluation Board user manual version 1 0 February 2021 www we online com wireless connectivity 3 ...

Page 6: ...1 2 Connector P3 power supply through external source 20 3 5 1 3 Connectors P4 and P5 power supply through external source 20 3 5 2 UART USB 20 3 5 3 UART direct 20 3 5 4 LFXO crystal 21 3 5 4 1 LFXO Design guidelines 22 3 5 5 Programming interface 22 3 6 Schematic 23 3 7 Layout 24 4 References 26 5 Regulatory compliance information 27 5 1 European Conformity 27 5 2 FCC 27 5 3 Exemption clause 27 ...

Page 7: ...2 8 1 Limited license 32 8 2 Usage and obligations 32 8 3 Ownership 33 8 4 Firmware update s 33 8 5 Disclaimer of warranty 33 8 6 Limitation of liability 33 8 7 Applicable law and jurisdiction 34 8 8 Severability clause 34 8 9 Miscellaneous 34 Thetis I Mini Evaluation Board user manual version 1 0 February 2021 www we online com wireless connectivity 5 ...

Page 8: ...2 4 GHz radio module with smart antenna configuration Order code Product Name 2611109021011 Mini EV Board Thetis I Table 1 Compatibility Content 2611109021011 Quantity Thetis I mini evaluation board 1 Packaging ESD safe cover 1 Table 2 Content Thetis I Wirepas Mini EV Board Thetis I Mini Evaluation Board user manual version 1 0 February 2021 www we online com wireless connectivity 6 ...

Page 9: ...ers allow the power selection and current measurement of the module The mini evaluation board can be connected to an USB port of a PC using TTL 232R 3V3 FTDI cable 2 1 Taking into operation PC To take the mini evaluation board into operation using a PC pin header P3 shall be used The corresponding FTDI driver package www ftdichip com Drivers VCP htm has to be installed on the PC The installation g...

Page 10: ...7 the channel of the network to 39 the node role to SINK Figure 2 Configure the sink d Start the radio stack on the MSAP tab Figure 3 Start the sink 3 To make other Thetis I mini evaluation board units join this Wirepas network connect them to the PC in the same way 4 Configure these mini evaluation boards as routing nodes taking part in the Wirepas network consisting of the previously configured ...

Page 11: ...LE 2 2 Taking into operation Host controller To take the mini evaluation board into operation using a host controller pin header P3 shall be used An external power supply shall be connected to the evaluation board The power supply op tion 2 or 3 from the table 15 shall be used It is important that the VDD is stable and able to reliably supply the module s static and peak current consumption as spe...

Page 12: ...n headers Access to module pins 50Ω port to λ 4 antenna Mini evaluation board RF Filter 50Ω matching Internal Antenna LEDs Current Measurement Solderbridge 2 54mm pin header Connector VDD GND SMA Connector THT Alternate power supply 3V UART 3 3V logic 3V 5V External crystal Figure 5 Block diagram Thetis I Mini Evaluation Board user manual version 1 0 February 2021 www we online com wireless connec...

Page 13: ...ents Pin header Function Pins WE article number P3 TTL 232R 3V3 FTDI cable connection Access to module pins 1X6 61000618321 P5 External power supply GND 1X4 61000418321 P4 External power supply 3V 1X4 61000418321 JP1 Power supply selection 1X6 61000618321 Table 3 Default assembled connectors Thetis I Mini Evaluation Board user manual version 1 0 February 2021 www we online com wireless connectivit...

Page 14: ...00511121 P2 Module access pins 1X9 61300911121 CON1 SMA Connector SMD 60312102114405 CON2 JTAG Connector 2X10 61302021121 Table 4 Additional assembly components Based on the necessity the required components shall be assembled Holes with 2mm diameter on all the four corners are available for spacer or standoff connections Thetis I Mini Evaluation Board user manual version 1 0 February 2021 www we ...

Page 15: ...RSVD 7 P0 21 B5 RSVD 8 P0 07 B6 RSVD 9 P0 03 17 RSVD Table 6 Pin header P2 3 2 2 P3 TTL 232R 3V3 FTDI cable connector P3 nRF52840 Function 1 GND 2 P0 11 15 RSVD 3 5V 4 P1 09 URXD 5 P1 08 UTXD 6 P0 12 16 RSVD Table 7 Pin header P3 Pin header P3 is used to connect the TTL 232R 3V3 FTDI cable P3 can also be used for direct host connection Thetis I Mini Evaluation Board user manual version 1 0 Februar...

Page 16: ... chapter 3 5 1 3 2 4 JTAG Debugging Interface JTAG Pin Function JTAG Pin Function 1 VDD 2 Not connected 3 Not connected 4 GND 5 Not connected 6 GND 7 SWDIO 8 GND 9 SWCLK 10 GND 11 Not connected 12 GND 13 Not connected 14 GND 15 RESET 16 GND 17 Not connected 18 GND 19 Not connected 20 GND Table 10 JTAG debugging interface Thetis I Mini Evaluation Board user manual version 1 0 February 2021 www we o...

Page 17: ...B antenna is used SMA Connection Inner Module RF pin Outer GND Table 11 Pin header SMA In order to use an external SMA antenna 22 pF capacitor 0402 on position C1 shall be assembled C2 C8 C11 and C12 should be left unpopulated Optional Experts have the possibility to use C11 C1 and C8 for additional filtering or fine tuning Figure 7 Capacitor connection to internal antenna Thetis I Mini Evaluation...

Page 18: ...ition C2 and a 0 3 pF capacitor 0402 on position C12 shall be assembled respectively C1 C8 and C11 should be left unpopulated Optional Experts have the possibility to use C2 C8 and C12 for additional filtering or fine tuning Thetis I Mini Evaluation Board user manual version 1 0 February 2021 www we online com wireless connectivity 16 ...

Page 19: ...3 3 Jumpers Figure 9 Jumpers Thetis I Mini Evaluation Board user manual version 1 0 February 2021 www we online com wireless connectivity 17 ...

Page 20: ...internal on board LDO or the external 3V as power supply The power LED is connected to the VDD line by the 1 2 pins of JP1 To mea sure module current consumption the jumper JP1 1 2 pins shall be re moved JP1 Function Jumper set default 4 5 External 3V power supply No 5 6 Internal LDO power supply Yes Table 14 Pin header JP1 Power supply selection On JP1 a current meter shall be connected instead o...

Page 21: ...t input is configured with a pull up resistor The module provides a RESET pin that is connected to this button so that the module can be restarted properly Thetis I Mini Evaluation Board user manual version 1 0 February 2021 www we online com wireless connectivity 19 ...

Page 22: ...he module is sourced the power Power LED lights up 3 5 1 3 Connectors P4 and P5 power supply through external source The development board can be sourced by an external power supply through the P4 1 9 3 6 V and P5 GND connector If the module is sourced the power Power LED lights up 3 5 2 UART USB The TTL 232R 3V3 cable is used for USB UART connection between PC and the evaluation board The IO leve...

Page 23: ...ted as follows The load capacitance of LFXO is given by Cl C9l C10l C9l C10l 1 If C9l C10l C then Cl C 2 2 whereas C9 C CXL1 CPCB 3 C10 C CXL2 CPCB 4 Cl Load capacitance of LFXO crystal CXL1 Input capacitance of Pad XL1 4pF CXL2 Input capacitance of Pad XL2 4pF CPCB Parasitic capacitance of PCB Parasitic capacitance of the PCB can vary depending on design and track length Typical values for parasi...

Page 24: ... and connected to the main ground plane 8 Open traces to the pins shall be avoided to reduce parasitic capacitance and coupling effects 9 Ground area shall be used between the crystal traces and other PCB traces for better decoupling Figure 12 LFXO assembly 3 5 5 Programming interface The evaluation board provides a place holder for 2 10 pin connector CON2 It can be used to connect directly to a J...

Page 25: ... 2 1 P4 4 3 2 1 P5 2 1 2 CON1 6 5 4 3 2 1 P3 JP1 6 5 4 3 2 1 XL2 XL2 GND GND GND GND GND GND SWDCLK SWDCLK SWDCLK SWDIO SWDIO SWDIO DATA_IND DATA_IND VDD_INT VDD_INT 5V0 5V0 P0 18 RESET P0 18 RESET P0 18 RESET P0 18 RESET 15 15 16 16 P1 08 UTXD P1 08 UTXD P1 09 URXD P1 09 URXD VDD_RF VDD_RF VDD_RF VDD_RF 5V B1 B2 B3 B4 B5 B6 17 17 LED1 LED1 LED1 VDD 3V 3V 3V 3V 3V XL1 XL1 LED2 LED2 LED2 GND CTS VC...

Page 26: ...yout Q1 1 4 3 2 no metal antenna NO METAL 12 5mm NO METAL 12 5mm L2 THETIS I Figure 14 Assembly Thetis I Mini Evaluation Board user manual version 1 0 February 2021 www we online com wireless connectivity 24 ...

Page 27: ...Q1 Q1 Q1 Q1 Figure 15 Top bottom internal layers Thetis I Mini Evaluation Board user manual version 1 0 February 2021 www we online com wireless connectivity 25 ...

Page 28: ... Wirepas Mesh Dual MCU API Reference Manual WP RM 100 version 5 1A https www we online com Man WIREPAS I Thetis I Mini Evaluation Board user manual version 1 0 February 2021 www we online com wireless connectivity 26 ...

Page 29: ... the before mentioned information Directives technical standards procedural descriptions and the like may be interpreted differently by the national authori ties Equally the national laws and restrictions may vary with the country In case of doubt or uncertainty we recommend that you consult with the authorities or official certification organizations of the relevant countries Würth Elektronik eiS...

Page 30: ...ent state of the art even if the products are operated within the range of the specifications The same statement is valid for all software sourcecode and firmware parts contained in or used with or for products in the wireless connectivity and sensor product range of Würth Elektronik eiSos GmbH Co KG In certain customer applications requiring a high level of safety and especially in customer appli...

Page 31: ... to be verified with the field sales engineer or the internal sales person in charge about the current product availability expectancy before or when the product for application design in disposal is con sidered The approach named above does not apply in the case of individual agreements deviating from the foregoing for customer specific products 6 7 Property rights All the rights for contractual ...

Page 32: ...Co KG products are integrated with applicable legal regulations Customer acknowledges and agrees that it is solely responsible for compliance with all le gal regulatory and safety related requirements concerning its products and any use of Würth Elektronik eiSos GmbH Co KG components in its applications notwithstanding any applications related in formation or support that may be provided by Würth ...

Page 33: ... information network etc Würth Elektronik eiSos GmbH Co KG must be informed about the intent of such usage before the design in stage In addition sufficient reliability evaluation checks for safety must be performed on every electronic component which is used in electrical circuits that require high safety and reliability function or perfor mance By using Würth Elektronik eiSos GmbH Co KG products...

Page 34: ... decompile disassemble or create derivative works of the incorporated Software and the source code in whole or in part No more extensive rights to use and exploit the products are granted to you 8 2 Usage and obligations The responsibility for the applicability and use of the Würth Elektronik eiSos wireless con nectivity product with the incorporated Firmware in a particular customer design is alw...

Page 35: ...e in the latest version of the product manual on our website The revision table in the product manual provides all necessary information about firmware updates There is no right to be provided with binary files so called Firmware images those could be flashed through JTAG SWD Spi Bi Wire SPI or similar interfaces 8 5 Disclaimer of warranty THE FIRMWARE IS PROVIDED AS IS YOU ACKNOWLEDGE THAT WÜRTH ...

Page 36: ...ovisions of the terms The parties shall replace any such provisions with new valid provisions that most closely approximate the purpose of the terms 8 9 Miscellaneous Würth Elektronik eiSos reserves the right at any time to change this terms at its own discre tion It is your responsibility to check at Würth Elektronik eiSos homepage for any updates Your continued usage of the products will be deem...

Page 37: ...bottom internal layers 25 List of Tables 1 Compatibility 6 2 Content Thetis I Wirepas Mini EV Board 6 3 Default assembled connectors 11 4 Additional assembly components 12 5 Pin header P1 13 6 Pin header P2 13 7 Pin header P3 13 8 Pin header P4 14 9 Pin header P5 14 10 JTAG debugging interface 14 11 Pin header SMA 15 12 Pin header JP1 18 13 Pin header JP1 Power LED 18 14 Pin header JP1 Power suppl...

Page 38: ... Internet of Things more than you expect Contact Würth Elektronik eiSos GmbH Co KG Division Wireless Connectivity Sensors Max Eyth Straße 1 74638 Waldenburg Germany Tel 49 651 99355 0 Fax 49 651 99355 69 www we online com wireless connectivity ...

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