5. Peripherals
The starter kit has a set of peripherals that showcase some of the features of the ZGM130S.
Be aware that most ZGM130S 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 ZGM130S and are debounced by RC
filters with a time constant of 1 ms. The buttons are connected to pins PF6 and PF7.
The kit also features two yellow LEDs marked LED0 and LED1 that are controlled by GPIO pins on the ZGM130S. The LEDs are con-
nected to pins PF4 and PF5 in an active-high configuration.
PF5 (GPIO)
User Buttons
& LEDs
UIF_LED0
UIF_LED1
UIF_PB0
UIF_PB1
PF6 (GPIO)
PF7 (GPIO)
PF4 (GPIO)
ZGM130S
Figure 5.1. Buttons and LEDs
5.2 RGB LED
The radio board features an RGB LED that is controlled by GPIO pins on the ZGM130S. The LED is connected in an active-low config-
uration.
PD10 (GPIO)
ZGM130S
PD11 (GPIO)
PD12 (GPIO)
LED_B
LED_R
LED_G
RGB LED
Figure 5.2. RGB LED
UG381: ZGM130S Zen Gecko Wireless Starter Kit User's Guide
Peripherals
silabs.com
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