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XPLR-IOT-1 - User guide

UBX-21035674 - R03

Platform description

Page 27 of 42

C1-Public

Figure 23

shows the NFC circuit connections.

Figure 23: NFC connection

3.7

Test points

The PCBA includes test points throughout the layout to facilitate system monitoring and application
debugging.

Table 16

describes the test points.

Figure 24

shows the test point locations. All test points

are located on the component side of the PCBA.

Test point

Signal

Description

TP1

VSIM

1.8 VDC nominal nano SIM socket power rail, source = SARA-R5 when enabled

TP2

NINA_DSR

NINA-W15 UART, DSR flow control

TP3

NINA_DTR

NINA-W15 UART, DTR flow control

TP4

NINA_RTS

NINA-W15 UART, RTS flow control

TP5

NINA_CTS

NINA-W15 UART, CTS flow control

TP6

NINA_TXD

NINA-W15 UART, TX data

TP7

NINA_RXD

NINA-W15 UART, RX data

TP8

GND

System ground

TP9

ROM_BOOT

NINA-W15 ESP boot mode

TP10

SARA_1V8

1.8 VDC nominal power rail, source = SARA-R5 when powered

TP11

SARA_VCC

SARA-R5 power rail, source = VBAT

TP12

VCC_NINA

3.3 VDC nominal power rail, source = 3V3 when enabled

TP13

DDC_SDA

I2C data, interface between SARA-R5 and MAX-M10

TP14

DDC_SCL

I2C clock, interface between SARA-R5 and MAX-M10

TP15

TX4/SARA_SEC_RX System UART4, TX data

TP16

RX4/SARA_SEC_TX System UART4, RX data

TP17

CTS4

System UART4, CTS flow control

TP18

RX1/SARA_PRI_TX System UART1, RX data

TP19

TX1/SARA_PRI_RX System UART1, TX data

TP20

CTS1

System UART1, CTS flow control

TP21

RTS1

System UART1, RTS flow control

TP22

RTS4

System UART4, RTS flow control

TP23

TX0

System UART0, TX data

TP24

RX0

System UART0, RX data

TP25

3V3_SER

3.3 VDC nominal power rail, source = USB-UART bridge

TP26

CTS0

System UART0, CTS flow control

TP27

RTS0

System UART0, RTS flow control

TP28

V_BAT

3.6 VDC nominal, source = battery charger when SW1 is on

TP29

CHRG_BATT

Battery charger battery connection (to fuel gauge)

Summary of Contents for XPLR-IOT-1

Page 1: ...ogramming of the XPLR IOT 1 application platform Providing a complete platform for developing various proof of concept IoT applications the XPLR IOT 1 showcases products from all u blox product centers including NORA B106 and NINA W156 short range radio modules SARA R510S cellular modules MAX M10S satellite positioning modules and the Thingstream IoT service delivery platform ...

Page 2: ...ation Document contains the final product specification This document applies to the following products Product name Ordering code Product status XPLR IOT 1 XPLR IOT 1 Engineering Sample u blox or third parties may hold intellectual property rights in the products names logos and designs included in this document Copying reproduction or modification of this document or any part thereof is only per...

Page 3: ...stem reset 13 3 3 Serial subsystem 14 3 4 u blox modules 15 3 4 1 NORA B106 short range radio 15 3 4 2 NINA W156 short range 18 3 4 3 SARA R510S cellular 20 3 4 4 MAX M10S positioning 22 3 5 I2C sensors 25 3 5 1 Environmental sensor 25 3 5 2 Accelerometer 25 3 5 3 Magnetometer 25 3 5 4 Gyroscope 25 3 5 5 Ambient light sensor 26 3 5 6 Battery gauge 26 3 5 7 Qwiic connector 26 3 6 NFC 26 3 7 Test po...

Page 4: ...plication development 37 6 1 NORA B1 37 7 Known issues errata 38 7 1 Hardware 38 7 1 1 PCBA revision B 38 7 2 Software 38 7 2 1 Sensor aggregation example v0 2 38 A Appendix 39 A 1 Glossary 39 B Regulatory limitations 40 Related documentation 41 Revision history 42 Contact 42 ...

Page 5: ...bined synergy of u blox short range radio positioning and cellular products in a single device Packaged within a silicone protective bumper XPLR IOT 1 comprises a Printed Circuit Board Assembly PCBA and rechargeable battery that allows portable operation The bumper can be easily removed from the case without tools See also Kit includes Figure 1 XPLR IOT 1 case with protective silicone bumper ...

Page 6: ...antenna with tag capability for Near Field Communication NFC A USB connection provides UART connections to each of the modules USB is also connected directly to the NORA B1 and SARA R5 For quick verification or configuration of the modules the respective evaluation applications s center 11 m center 12 and u center 13 may be used when the connection to NORA B1 is not active XPLR IOT 1 also includes...

Page 7: ...chnology Function u blox hero red u blox module MCU Bluetooth Wi Fi Cellular GNSS Green I2C Sensor bus Qwiic compatible expansion port Dark Gray Asynchronous serial UART connections between modules Blue USB Personal computer connection Light Blue Memory Quad SPI flash Gray Power buttons indicators Power switch battery charging circuit user input and output Table 1 Technology color coding The XPLR ...

Page 8: ...3 1 PCBA All test points current measurement jumpers and debugging LEDs are accessible from the component side of the PCBA To expose the PCBA remove the protective rubber bumper and undo the four screws on the rear of the case2 The PCBA only needs to be removed if the battery requires unplugging or removal XPLR IOT 1 contains highly sensitive electronic circuitry and Electrostatic Sensitive Device...

Page 9: ...Platform description Page 9 of 42 C1 Public 3 1 1 PCBA component side The component side of the PCBA faces the rear of the case Figure 4 shows the locations of components on the board Figure 4 PCBA component side part locations detailed view ...

Page 10: ...he board Figure 5 PCBA antenna side part locations 3 2 Power and reset subsystem XPLR IOT 1 is powered over USB through a micro B connector VBUS is filtered and connected to a Li Po battery charger The charger allows a maximum of 500 mA to be drawn from the upstream USB host or hub which is the high power limit for a USB 2 0 peripheral Power is first allocated to the system with the remaining avai...

Page 11: ...ected Off Disconnected On VBAT 3 2 VDC Green Disconnected On VBAT 3 2 VDC discharged Off Connected Off Charging Red Connected Off Fully charged or battery disconnected Off Connected On Charging Amber Connected On Fully charged or battery disconnected Green Table 2 CHG PWR LED states XPLR IOT 1 can be powered by USB alone if the battery is unplugged or removed To prevent an inrush of USB power curr...

Page 12: ... 3 as shown in Figure 6 The expected current measurements are shown in Table 3 Figure 6 PCBA power switch and system current measurement test points J10 pin 1 is connected to system ground All current measurement jumpers within PCBA are compatible with the Nordic Semiconductor Power Profiler Kit II 29 Figure 7 shows the power switch and current measurement location on the C10 assembly board Figure...

Page 13: ... SARA_RST High Reset NINA_RST High Reset Table 4 Reset states System reset can be isolated from each module by cutting the associated jumper noted in Table 5 This can be useful to independently reset each major component when developing applications See also the XPLR IOT 1 schematic in the XPLR IOT 1 hardware repository 1 Module or IC Reset isolation jumper USB hub IC NC11 USB UART bridge IC NC8 N...

Page 14: ...ule See Table 7 and the schematic at 1 for GPIO assignments Figure 8 Serial subsystem NORA B1 outputs GPIO control signals to select whether NORA B1 or the USB UART port connects to either NINA W15 or MAX M10 defaults are to the USB UART ports NORA B1 has a dedicated connection to SARA R5 This configuration allows each of the product center control programs including s center 11 m center 12 and u ...

Page 15: ...of the other u blox modules sensors and interfaces GPIO Signal Direction Description P0 00 XL1 IO Low frequency clock P0 01 XL2 IO Low frequency clock P0 02 P0 02 NFC1 IO NFC tag P0 03 P0 03 NFC2 IO NFC tag P0 04 NORA_EN_MAX O MAX M10 power control P0 05 NORA_BTN1 I Application button 1 P0 06 LED_BLUE O Application RGB LED blue color P0 07 MAX_SAFEBOOT NINA_SW2 O MAX M10 safe boot and NINA W15 SW2...

Page 16: ...or P1 08 RX4 I System UART4 RX data P1 09 NINA_RST O NINA W15 reset P1 10 NORA_NINA_COM_EN O System UART2 UART6 selection P1 11 RX6 I System UART6 RX data P1 12 DTR6 O System UART6 DTR flow control P1 13 TX5 O System UART5 TX data P1 14 RX5 I System UART5 RX data P1 15 NORA_MAX_COM_EN O System UART3 UART5 selection Table 7 NORA B1 GPIO assignments 3 4 1 2 Serial Wire Debug SWD As an open CPU modul...

Page 17: ...n be updated with u blox provided firmware updates over the respective UART connections 3 4 1 3 Current measurements Current flowing into NORA B1 from the 3V3 supply rail is measured by cutting jumper NC9 and placing an ammeter or power analyzer across J4 pins 2 and 3 as shown in Figure 10 Current sunk by the GPIO pins is not measured through J4 J4 pin 1 is connected to system ground Figure 10 NOR...

Page 18: ...and set Wi Fi is one method of providing a network connection that is available for sending MQTT messages through Thingstream to process environmental data NINA W156 also contains a Abracon Niche antenna for Wi Fi in the 2 4 GHz ISM band 3 4 2 1 NINA W15 power supply and current measurement Current flowing into NINA W15 from the 3V3 supply rail is measured by cutting jumper NC5 and place an ammete...

Page 19: ... Page 19 of 42 C1 Public Figure 12 NINA W15 power supply and current measurement Figure 13 shows the current measurement location for the NINA W15 module on the PCBA See Table 3 for expected current measurements Figure 13 NINA W15 module and current measurement ...

Page 20: ...ribes the SWITCH_1 and SWITCH_2 signals that are connected to pushbutton switches and control signals from NORA B1 This allows NINA W15 system functions as described in the data sheet and system integration manual NINA W15 pin PCBA button Control signal from NORA B1 GREEN SWITCH_1 BTN4 SARA_INT NINA_SW1 SWITCH_2 BTN5 MAX_SAFEBOOT NINA_SW2 Table 10 NINA W15 switch signals See also the NINA W15 data...

Page 21: ...supply rail cut jumper NC6 and place an ammeter or power analyzer across J3 pins 2 and 3 as shown in Figure 15 J3 pin 1 is connected to system ground Figure 15 SARA R5 power supply and current measurement Figure 14 shows the current measurement location and position of the nano SIM in SARA R5 See Table 3 for expected current measurements Figure 16 SARA R5 module nano SIM and current measurement ...

Page 22: ...s USB Port 0 from the USB hub is connected to the SARA diagnostic USB port Default state is disabled To enable USB diagnostic logging short jumper NO3 Enabling USB on SARA R5 will increase current consumption Ensure jumper NO3 is returned to the open state once diagnostics are complete 3 4 3 3 SARA R5 subscriber information module An embedded SIM eSIM and a nano SIM socket are provided to allow fl...

Page 23: ...F receive path 3 4 4 2 MAX M10 power supply and current measurement MAX M10 operates at 3 VDC The main 3V3 power supply is connected to an LDO to provide this voltage The enable input of the LDO is used to switch power to MAX M10 with control signals from NORA B1 or SARA M510 The RAM and RTC can be maintained by enabling the V_BCKP power rail NORA_EN_MAX SARA_EN_MAX MAX_BACKUP_EN MAX M10 state Low...

Page 24: ... connected to system ground Figure 19 MAX M10 current measurement Figure 20 MAX M10S and current measurement 3 4 4 3 MAX M10 UART and other signals Table 14 describes the three LEDs that indicate UART activity in MAX M10 Signal LED State NINA W15 status LED state MAX_TXD D16 High UART idle Off Toggling with data TX data from module Follows MAX_TXD MAX_RXD D17 High UART idle Off Toggling with data ...

Page 25: ...ess 0x19 The LIS2DH12TR data sheet is available at reference 23 3 5 3 Magnetometer A LIS3MDL magnetometer from ST Microelectronics measures magnetic fields in three axes Scales of 4 8 12 and 16 gauss may be selected An optional interrupt may be connected to NORA B1 by soldering across the jumper NO4 and cutting jumper NC7 On the I2C bus it is assigned address 0x1E The LIS3MDL data sheet is availab...

Page 26: ...A B1 On the I2C bus it is assigned address 0x55 The BQ27421YZFR G1A data sheet is available at reference 27 3 5 7 Qwiic connector To further expand the I2C bus J5 is compatible with the Qwiic connect system defined by SparkFun Electronics This allows additional I2C devices operating at 3 3 V to be connected in a daisy chain configuration Table 15 shows the Qwiic pin out The definition of the Qwiic...

Page 27: ... TP9 ROM_BOOT NINA W15 ESP boot mode TP10 SARA_1V8 1 8 VDC nominal power rail source SARA R5 when powered TP11 SARA_VCC SARA R5 power rail source VBAT TP12 VCC_NINA 3 3 VDC nominal power rail source 3V3 when enabled TP13 DDC_SDA I2C data interface between SARA R5 and MAX M10 TP14 DDC_SCL I2C clock interface between SARA R5 and MAX M10 TP15 TX4 SARA_SEC_RX System UART4 TX data TP16 RX4 SARA_SEC_TX ...

Page 28: ... rail source 3V3 TP37 GNSS_LNA_PWR 2 9 VDC nominal power rail source VCC_MAX_RF switched by MAX M10 TP38 ACCEL_INT Accelerometer interrupt TP39 VCC_MAX_RF 2 9 VDC nominal power rail source MAX M10 TP40 SENSE_I2C_SDA I2C data sensor bus TP41 SENSE_I2C_SCL I2C clock sensor bus TP42 VCC_MAX 3 0 VDC nominal power rail source 3V3 through LDO when enabled TP43 SWDCLK NORA B1 SWD clock TP44 SWO NORA B1 s...

Page 29: ... IOT 1 User guide UBX 21035674 R03 Platform description Page 29 of 42 C1 Public Figure 24 shows all test point locations All test points are on the component side of the PCBA Figure 24 Test point locations ...

Page 30: ...to isolate from system reset NC2 SARA R5 power indicator Open to disable LED D7 NC3 NINA W15 power indicator Open to disable LED D8 NC4 SARA R5 reset Open to isolate from system reset NC5 NINA W15 current measurement Open to allow use of J2 NC6 SARA R510 current measurement Open to allow use of J3 NC7 Ambient light sensor interrupt Open to disable interrupt NC8 USB UART reset Open to isolate from ...

Page 31: ...e 0 115 200 SARA R510S Interface 1 115 200 NINA W156 Interface 2 115 200 MAX M10S Interface 3 9 600 Table 20 USB UART interface assignments COM port assignments differ among host PCs Using Figure 25 as an example NORA B106 on interface 0 is assigned to COM8 7 Open a terminal program such as Putty 30 or TeraTerm 31 to the virtual COM port VCP for NORA B1 interface 0 with the settings 115 200 bps no...

Page 32: ... 21035674 R03 USB connection Page 32 of 42 C1 Public Figure 26 shows s center 11 m center 12 and u center 13 connected to the respective VCPs on XPLR IOT 1 Figure 26 XPLR IOT 1 communicating with s center m center and u center ...

Page 33: ... 1 main repository 1 If there are no updates to the network core there will only be an application core file 2 Start bootloader mode by pressing and holding button 1 while resetting or power cycling XPLR IOT 1 3 Determine the COM port number for NORA B1 on Interface 0 of the USB UART interface This example assumes the example COM port enumeration of interface 0 shown at USB connection 4 Open a Win...

Page 34: ... virtual COM port VCP for NORA B1 interface 0 with the settings 115 200 bps no parity 8 data bits and 1 stop bit Set the terminal line endings to carriage return only CR or hex 0x0d 3 Type the following command to enable NINA W15 over the USB UART interface 2 modules NINAW156 power_on 4 Open s center and connect to NINA W15 on USB UART interface 2 5 At this point NINA W15 may be updated through s ...

Page 35: ...ve returned CGATT 0 then activate explicitly 17 2 DO NOT do this STEP if CGATT 1 was returned AT CGATT 1 AT CGATT 18 m center terminal check activation AT CGACT 19 m center terminal activate explicitly only if needed 19 1 If AT CGACT Above returned CGACT x 0 then activate explicitly 19 2 DO NOT do this STEP if CGACT x 1 was returned This is for GPRS For LTE this should not be required AT CGACT 1 A...

Page 36: ...t SARA R5 to airplane mode AT CFUN 4 27 NORA B1 terminal save settings by power cycling SARA R5 with modules SARAR5 power_off modules SARAR5 power_on MQTT SN credentials must be reentered through the NORA command line interface See also 4 5 4 MAX M10 MAX M10 firmware resides in ROM and does not require updates ...

Page 37: ...ory 3 and developed using the Nordic Semiconductor nRF Connect SDK NCS 32 Build instructions are located within the repository readme NCS is installed through the Toolchain Manager of the Nordic Semiconductor utility nRF Connect for Desktop 1 Download and install Microsoft Visual Studio Code 33 2 Follow the Getting Started instructions from the NCS documentation 34 When installing NCS select the v...

Page 38: ...aggregation example v0 2 1 SARA R5 power is always enabled Modules SARAR5 power_on and modules SARAR5 power_off commands have no effect 2 NINA W15 SARA_INT NINA_SW1 signal is held high causing the UART to revert to default settings when NINA W15 is powered on 115200 bps 8 data bits no parity 1 stop bit hardware flow control No work around is required for Wi Fi functionality A future release will c...

Page 39: ...Energy LED Light Emitting Diode Li Po Lithium Polymer battery LNA Low Noise Amplifier MCU MicroController Unit MQTT Message Queuing Telemetry Transport NC Normally Closed NCS nRF Connect SDK NFC Near Field Communication NO Normally Open PCBA Printed Circuit Board Assembly RAM Random Access Memory SAW Surface Acoustic Wave filter SDK Software Development Kit SIM Subscriber Identity Module System In...

Page 40: ...lopment platform It has not been RF certified with worldwide agencies It may not be offered for sale as an end user product XPLR IOT 1 contains the modules described in Table 22 Module FCC ID IC ID NORA B106 XPYNORAB1 8595A NORAB1 NINA W156 XPYNINAW15 8595A NINAW15 SARA R510S XPYUBX19KM01 8595A UBX19KM01 MAX M10S N A N A Table 22 Regulatory IDs ...

Page 41: ...41356 16 SARA R5 EasyFlash firmware update utility UBX 13001845 17 MAX 10S data sheet UBX 20035208 18 MAX 10S system integration manual UBX 20053088 19 Abracon Niche antenna 20 Taoglas wideband cellular antenna 21 Taoglas GNSS antenna 22 Bosch humidity pressure temperature sensor BME280 23 ST Microelectronics Accelerometer LIS2DH12 24 ST Microelectronics magnetometer LISMDL 25 TDK gyroscope ICG 20...

Page 42: ...nd related references in the block diagram serial subsystem and PCBA images Other minor editorial changes R03 13 Jul 2022 brec Added cellular coverage area footnote corrected jumper highlighting on Figure 13 and Figure 16 corrected gyroscope part for rev B hardware updated firmware update sections for NORA B1 and SARA R5 added Known issues errata section Contact For further support and contact inf...

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