PWM triangle wave test

TEST/pwm.lua

@@ -0,0 +1,21 @@
+PWM_TIMER = 6
+PWM_PIN = 5
+INTERVAL_MS = 3
+step = 1
+duty = 0
+pwm.setup(PWM_PIN, 60, duty)
+
+tmr.register(PWM_TIMER, INTERVAL_MS, tmr.ALARM_AUTO, function ()
+  pwm.setduty(PWM_PIN, duty)
+  duty = duty + step
+  if duty > 1000 then
+  print(duty)
+end
+  if duty >= 1023 then
+    step = step * -1
+  elseif duty < 0 then
+    step = step * -1
+  end
+end)
+
+tmr.start(PWM_TIMER)