%
% Let the build-in LED (GPIO 2) glow up and down
%

% Config params, overwrite any previous settings from the commandline
% Nothing here

% Initialization, this is done once after booting
on init
do
	% PWM
	setvar $pwm_val = 1000
	setvar $pwm_inc = "-10"

	gpio_pwm 2 $pwm_val 

	settimer 1 10

% Now the events, checked whenever something happens

% Timer (every 10ms)
on timer 1
do
	setvar $pwm_val = $pwm_val + $pwm_inc

	% Under 0 (lower limit)? Reverse increment
	if 0 > $pwm_val then
		setvar $pwm_inc = 0 - $pwm_inc
		setvar $pwm_val = $pwm_inc
	endif

	% Over 1000 (upper limit)? Reverse increment
	if $pwm_val > 1000 then
		setvar $pwm_inc = 0 - $pwm_inc
		setvar $pwm_val = 1000 + $pwm_inc
	endif

	gpio_pwm 2 $pwm_val

	settimer 1 10