u-blox XPLR-AOA-3 User Manual

XPLR-AOA-3 - User guide
UBX-22006906 - R07 C209 tag Page 24 of 46
C1-Public
The main components of any C209 tag are shown in Figure 23.
Figure 23: C209 main functional components
The important pin definitions on the C209 application board are described in Table 6.
No.
Name
I/O
Description
Remarks
GPIO_1
RED
O
RED system status signal
Active low
GPIO_2
LIS_INT
I
Interrupt signal from Ambient Light
Sensor
May cause current leak in default configuration.
See C209 GitHub repository [12] for more
information.
GPIO_7
GREEN
O
GREEN system status signal
Active low
GPIO_8
BLUE
O
BLUE system status signal
Active low
GPIO_18
SWITCH_2
I
Switch_2 button
Active low
GPIO_20
UART_RTS
O
UART request to send control signal
Used only when hardware flow control is enabled
GPIO_21
UART_CTS
I
UART clear to send control signal
Used only when hardware flow control is enabled
GPIO_22
UART_TXD
O
UART data output
GPIO_23
UART_RXD
I
UART data input
GPIO_42
LIS_INT
I
Interrupt signal from accelerometer
Table 6: Important pin definitions on the C209
For more information about programming the module, see also the NINA-B4 system integration
manual [13] and NINA-B40 data sheet [14]. See also C209 schematics.
☞ Although the sensors on the C209 application board are not used in the latest direction-finding
tag software from u-blox, the sensors can be utilized in any customer application.

u-blox XPLR-AOA-3 Specifications

General

Brand	u-blox
Model	XPLR-AOA-3
Category	Motherboard
Language	English