u-blox EVK-NINA-B50, User Manual

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EVK-NINA-B50 - User guide
UBX-23007761 - R02 Interfaces and peripherals Page 21 of 37
C1-Public
4 Interfaces and peripherals
4.1 Buttons and LEDs
Figure 15: Position of the push buttons and LEDs on the evaluation board
Annotation Function Description
SW0 Reset button Connected directly to the NINA RESET_N pin.
SW1 User button Push button for application use. Connected directly to the NINA SWITCH_1 (GPIO_7) pin
SW2 User button Push button for application use. Connected directly to the NINA SWITCH_2 (GPIO_18) pin
Table 9: EVK-NINA-B50 buttons
Annotation Function Description
DS1 UART CTS LED Connected to the NINA UART_CTS (GPIO_21) pin via jumper header J9
DS2 UART RTS LED Connected to the NINA UART_RTS (GPIO_20) pin via jumper header J9
DS3 Interface MCU LED Blinks on USB enumeration and activity, lit when the Interface MCU is connected via USB
DS4 Interface MCU LED Error LED
DS5 UART DTR LED Connected to the NINA UART_DTR (GPIO_16) pin via jumper header J9
DS6 UART DSR LED Connected to the NINA UART_DSR (GPIO_17) pin via jumper header J9
DS7 UART TXD LED Connected to the NINA UART_TXD (GPIO_22) pin via jumper header J9
DS8 UART RXD LED Connected to the NINA UART_RXD (GPIO_23) pin via jumper header J9
DS9 RGB LED Connected to the NINA RED (GPIO_1), GREEN (GPIO_7) and BLUE (GPIO_8) pins through
jumper header J19.
☞
See also the NINA-B50 data sheet [3] .
Table 10: EVK-NINA-B50 LED indicators
SW0
SW1
SW2
DS6 DS5
DS1
DS2 DS7 DS8
DS9
DS3
DS4
Buttons and LEDs
SW0 Reset
User button
User button
SW1
SW2
DS3
Interface MCU LED
Interface MCU LED
Status LED
DS4
TXD LED
RXD LED
RTS LED
CTS LED
DTR LED
DSR LED
DS9
DS8
DS7
DS2
DS1
DS5
DS6