u-blox XPLR-IOT-1, Руководство пользователя

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XPLR-IOT-1 - User guide
UBX-21035674 - R03 Platform description Page 20 of 42
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Table 8 describes the power and LED states for the NINA-W15 module.
Signal LED State NINA-W15 status LED state
NINA_EN D8 High Powered On
Low Not powered Off
Table 8: NINA-W15 power states
3.4.2.2 NINA-W15 UART and other signals
Table 9 describes the LEDs that indicate the UART activity.
Signal LED State NINA-W15 status LED state
NINA_TXD D5 High UART idle Off
Toggling with data TX data from module Follows NINA_TXD
NINA_RXD D6 High UART idle Off
Toggling with data RX data into module Follows NINA_RXD
NINA_COM_CTRL D4 Low USB-UART bridge active On
High NORA_B10 active Off
Table 9: NINA-W15 UART LEDs
LED RGB1 is connected to the red, green, and blue LED signals of NINA-W15, and functions as
described in the system integration manual
[10] .
Table 10 describes 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 sheet [9] and system integration manual [10] .
3.4.3 SARA-R510S – cellular
SARA-R510S provides LTE-M and NB-IoT connectivity through its UART and AT command set.
Cellular is a second method of providing a network connection for the MQTT messages. A wide-band
cellular antenna from Taoglas (PCS.66.A) is mounted on the PCBA for cellular connectivity in
supported bands from 600 MHZ to 6 GHz
[20] . See also the SARA-R5 data sheet [14] and system
integration manual [15] .
Figure 14 shows the LTE antenna and eSIM. An I2C connection between SARA-R5 and MAX-M10
provides direct communication of GNSS data without involving NORA-B1.
Figure 14: LTE antenna and eSIM