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-- move a servo in a sinisoidal fashion
local SERVO_FUNCTION = 94
local PERIOD = 0.5
function update() -- this is the loop which periodically runs
local t = 0.001 * millis():tofloat()
local pi = 3.1415
local output = math.sin(pi * t * PERIOD * 2.0)
local pwm = math.floor(1500 + 500 * output)
SRV_Channels:set_output_pwm(SERVO_FUNCTION, pwm)
return update, 20 -- reschedules the loop at 50Hz
end
return update() -- run immediately before starting to reschedule