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Showing posts with label automatic barriers. Show all posts
Showing posts with label automatic barriers. Show all posts

Thursday, June 23, 2022

Railway Crossing Multi Track Two Way

    This article is based on the article with same name and Railway Crossing Part 4: Putting it all Together article.

   My tests included few models until at last version with sounds (warnings) and other count method for trains, but main structures are same:

Railway_Crossing_1 (just added tip and free lights), sketch: us_barriers_rudysarduinoprojects_1b.ino


Railway_Crossing_2 (added sounds using Mike Osborn MKO tips),sketch: bell_and_button_servo_4
Railway_Crossing_3 (added sounds and test different count methods: original with few updates or big changes)
with 3 sketches 
   For last sketch, I uploaded this videos:
Railway Crossing with lights and sounds for Multi Track Two Way
   If no train between IR sensors, barriers (gates) are open:
but at least a train is between sensors, barriers (gates) are closed:


29.08.2022
   I changed the sketch for remove sound after gate is open (us_barriers_2b_2)
as Jedidiah Sawyer wanted. 
   Last change of the sketch is to have also fading light as in 2nd Avenue Railroad Crossing, Clanton, AL

so, last sketch is us_barriers_2b_3
and a short video made by Jedidiah Sawyer:

31.08.2022
   The variable for change the fade effects are:
and the fade for LED3 is
so, LED3 is off (brightness = 0), than after 200ms (variable time_to_stop) brightness increased at 1 (variable fadeAmount), than after 2 ms (variable fade_delay) brightness is 2, after more 2ms brightness is 4, etc, until brightness is 255 (maximum = 100%) .. is a pause (time_to_stop = 200ms) and after that brightness decrease with 1 at every 2ms until 0... 
Leds for blink effect (LED1 and LED2) are same period as fadding leds (LED3and LED4):
..so, you can change the values as you want,...