This example simply blinks all of the LEDs on the dev board and outputs a counter via serial. Note that some dev boards do not have a serial output by default, and therefore do not output anything.
This example is compatible with these development boards:
al_avreb_can
(no logger)arduino_uno
(no logger)nucleo_f031k6
nucleo_f103rb
nucleo_f303k8
nucleo_f401re
nucleo_f411re
nucleo_f429zi
stm32f072_discovery
(no logger)stm32f103c8t6_blue_pill
(no logger)stm32f1_discovery
(no logger)stm32f3_discovery
(no logger)stm32f429_discovery
(no logger)stm32f469_discovery
stm32f4_discovery
(no logger)stm32f746g_discovery
stm32f769i_discovery