Update interfaces information

Author: santaimpersonator

flex_boards/SparkPNT_GNSS_Flex_Module_LG290P/docs/hardware_overview.md

@@ -90,7 +90,7 @@ The built-in NIC anti-jamming unit provides professional-grade interference sign
 
 
 ## Board Layout
-The GNSS Flex system is designed around two 2x10-pin, 2mm pitch headers used mate the two types of boards. A standardized pin layout, keeps the ecosystem pin-compatible for upgrades and allows board to be easily swapped for repairs. Depending on the capabilities of the GNSS receiver, these pins will breakout the UART (x4), I<sup>2</sup>C, and SD card interfaces along with any PPS or event signals of the GNSS receiver.
+The GNSS Flex system is designed around two 2x10-pin, 2mm pitch headers used mate the two types of boards. A standardized pin layout, keeps the ecosystem pin-compatible for upgrades and allows board to be easily swapped for repairs. Depending on the capabilities of the GNSS receiver, these pins will breakout the USB, UART (x4), I<sup>2</sup>C, and SD card interfaces along with any PPS or event signals of the GNSS receiver.
 
 The LG290P GNSS Flex module has the following features:
 
@@ -389,7 +389,7 @@ The accuracy of the position reported from the LG290P GNSS module, can be improv
 
 
 ## GNSS Flex Headers
-The GNSS Flex system is designed around two 2x10-pin, 2mm pitch headers used mate the two types of boards. A standardized pin layout, keeps the ecosystem pin-compatible for upgrades and allows boards to be easily swapped for repairs. Depending on the capabilities of the GNSS receiver, these pins will breakout the UART (x4), I<sup>2</sup>C, and SD card interfaces along with any PPS or event signals of the GNSS receiver.
+The GNSS Flex system is designed around two 2x10-pin, 2mm pitch headers used mate the two types of boards. A standardized pin layout, keeps the ecosystem pin-compatible for upgrades and allows boards to be easily swapped for repairs. For the LG290P GNSS receiver, these pins will breakout the UART (x3) and I<sup>2</sup>C interfaces along with a PPS, event, and LED status indication signal from the GNSS receiver.
 
 
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flex_boards/SparkPNT_GNSS_Flex_Module_mosaic-X5/docs/hardware_overview.md

@@ -282,7 +282,7 @@ For the users who prefer a command-line interface, Septentrio has you covered. U
 
 
 ## Board Layout
-The GNSS Flex system is designed around two 2x10-pin, 2mm pitch headers used to mate the two types of boards. A standardized pin layout, keeps the ecosystem pin-compatible for upgrades and allows boards to be easily swapped for repairs. Depending on the capabilities of the GNSS receiver, these pins will breakout the UART (x4), I<sup>2</sup>C, and SD card interfaces along with any PPS or event signals of the GNSS receiver.
+The GNSS Flex system is designed around two 2x10-pin, 2mm pitch headers used to mate the two types of boards. A standardized pin layout, keeps the ecosystem pin-compatible for upgrades and allows boards to be easily swapped for repairs. Depending on the capabilities of the GNSS receiver, these pins will breakout the USB, UART (x4), I<sup>2</sup>C, and SD card interfaces along with any PPS or event signals of the GNSS receiver.
 
 The mosaic-X5 GNSS Flex module has the following features:
 
@@ -576,7 +576,7 @@ The accuracy of the position reported from the mosaic-X5 module, can be improved
 
 
 ## GNSS Flex Headers
-The GNSS Flex system is designed around two 2x10-pin, 2mm pitch headers used mate the two types of boards. A standardized pin layout, keeps the ecosystem pin-compatible for upgrades and allows boards to be easily swapped for repairs. Depending on the capabilities of the GNSS receiver, these pins will breakout the UART (x4), I<sup>2</sup>C, and SD card interfaces along with any PPS or event signals of the GNSS receiver.
+The GNSS Flex system is designed around two 2x10-pin, 2mm pitch headers used mate the two types of boards. A standardized pin layout, keeps the ecosystem pin-compatible for upgrades and allows boards to be easily swapped for repairs. For the mosaic-X5 GNSS receiver, these pins will breakout the USB, UART (x4), and SD card interfaces along with a configurable PPS signal, two event signals, and two LED status indication signals from the GNSS receiver.
 
 
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