Leds And Switches; Figure 11. Led's And Switches Circuit - ST X-STM32MP-GNSS1 Getting Started

2.8

LEDs and Switches

3 LEDs are used as an output to indicate to the user of the functioning of the module. Red LED glows constantly
indicating adequate power supply is available to the board. Green LED blinks continuously to indicate the
functioning of PPS (pulse per second). All user indicated functions are denoted by the Yellow LED when the
USER Switch (SW3) is pressed. The other 2 push button switches (SW1, SW2) are used to take input such as
RESET or WAKEUP from the user.
TES EO-LIV3FL_P P S
3V3
R49
300
D4
LED RED
UM3237 - Rev 1
Figure 11.
TP 8
R46 22K
R47 0
NM
LED_US ER
R50
300
D5
LED YELLOW
LED'S and Switches Circuit
3V3
R45
75
D3
LED GREEN
1 Q1
2S TR1160
CN4
U.FL-R-S MT-1(10)
S WITCH_US ER
UM3237
LEDs and Switches
3V3
R48
4.7K
R51 1K
S W3 C26
100nF
S P S T S W
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