5. Peripherals
The starter kit has a set of peripherals that showcase some of the features of the EFR32.
Note that most EFR32 I/O routed to peripherals are also routed to the breakout pads or the EXP header, which must be taken into
consideration when using these.
5.1 Push Buttons and LEDs
The kit has two user push buttons marked BTN0 and BTN1. They are connected directly to the EFR32 and are debounced by RC filters
with a time constant of 1 ms. The buttons are connected to pins PD15 and PB11.
The kit also features two yellow LEDs marked LED0 and LED1 that are controlled by GPIO pins on the EFR32. The LEDs are connec-
ted to pins PD13 and PF3 in an active-high configuration.
PF3 (GPIO)
User Buttons
& LEDs
UIF_LED0
UIF_LED1
UIF_PB0
UIF_PB1
PD15 (GPIO)
PB11 (GPIO)
PD13 (GPIO)
EFR32
Figure 5.1. Buttons and LEDs
UG476: Z-Wave 700 - EFR32ZG14 Long Range Wireless Starter Kit User's Guide
Peripherals
silabs.com
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