1from machine import Pin, Signal 2 3# 96Boards/Qualcomm DragonBoard 410c 4# 5# By default, on-board LEDs are controlled by kernel LED driver. 6# To make corresponding pins be available as normal GPIO, 7# corresponding driver needs to be unbound first (as root): 8# echo -n "soc:leds" >/sys/class/leds/apq8016-sbc:green:user1/device/driver/unbind 9# Note that application also either should be run as root, or 10# /sys/class/gpio ownership needs to be changed. 11# Likewise, onboard buttons are controlled by gpio_keys driver. 12# To release corresponding GPIOs: 13# echo -n "gpio_keys" >/sys/class/input/input1/device/driver/unbind 14 15# User LED 1 on gpio21 16LED = Signal(Pin(21, Pin.OUT)) 17 18# User LED 2 on gpio120 19LED2 = Signal(Pin(120, Pin.OUT)) 20 21# Button S3 on gpio107 22BUTTON = Pin(107, Pin.IN) 23