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Post by Deleted on Jan 13, 2021 13:46:22 GMT -7
I concur.
MPH sensor can be any distance you want with Track Mate as long as you put it in correctly in settings. I use 12". I don't know about Arduino
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Post by skillet on Jan 13, 2021 15:54:04 GMT -7
Thanks on the measurements guys
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Post by dynomike on Jan 13, 2021 17:52:49 GMT -7
I see thats the difference i believe in the arduino uno and mega I think. Besides just having more plugs. The arduino mega has a driver built in. I just happen to have a driver called ch34 in my mega. That's the driver drc doesn't like. Ill get back to mine tomorrow and see what I figure out. Sam, you might want to post the issues you are encountering on the drc on slot forum. Dave, more than likely will have a solution. I think also Gale is using the mega, but i don't know what windows version. |
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Post by GTS on Jan 13, 2021 17:58:05 GMT -7
I see thats the difference i believe in the arduino uno and mega I think. Besides just having more plugs. The arduino mega has a driver built in. I just happen to have a driver called ch34 in my mega. That's the driver drc doesn't like. Ill get back to mine tomorrow and see what I figure out. Sam, you might want to post the issues you are encountering on the drc on slot forum. Dave, more than likely will have a solution. I think also Gale is using the mega, but i don't know what windows version. I'm running it on Win 7 pro. I installed the Arduino software (available at the link I posted previously) and had no issues getting the computer to recognize the Arduino Mega that I'm using. |
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Post by dave632 on Jan 13, 2021 18:40:56 GMT -7
Looks about right. I know my track is 15' 7.5" in length.
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Post by dynomike on Jan 25, 2021 12:28:52 GMT -7
Sam, are you ready to get back to the timing project?
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Post by skillet on Jan 25, 2021 16:22:50 GMT -7
I'm ready Mike. Im going to start poking at it tomorrow
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Post by dynomike on Jan 25, 2021 16:37:26 GMT -7
I had everything working fine on a breadboard. When I hooked it up to the track, the finish line sensor would not pickup a fast car. It might have something to do with the light intensity or the value of thr resistors i am using. We no longer have a electronics store in the area. So i have to order everything on line. I sure do miss Radio Shack.
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Post by GTS on Jan 25, 2021 16:43:16 GMT -7
. . . . I sure do miss Radio Shack. . . . I'm with ya' there! |
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Post by skillet on Jan 25, 2021 20:00:01 GMT -7
You ain't kidding radio shack was in walking distance from me. Alot of research I've been finding, lighting is very important as to what kind of light. I think this was my problem originally on my road course. Thats why I went with everything Gale has. Except I screwed up on the mega when I got the wrong driver in it( ch32 I think is the bad one) . I still think it will work though. If not I'm ordering a different arduino and trying again lol. What I find funny is autoworld dragstrip sensors work just fine with regular room light. I've sent several messages to autoworld and tried getting replacement sensors, trying to find out exactly the one they use. No luck so far. I bought the closest looking sensors to the autoworld dragstrip I could find. I still had to put a light bridge over them to work. The make shift bridge was an led lamp i screwed to the side of the track . With the light kit Gale suggested I will have a light or 2 left so ill switch out my road course with the extra lights and sensors at a later time. Possibly ha ha  |
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Post by dave632 on Jan 26, 2021 8:59:35 GMT -7
Yes I should have chimed in about the type of light used for sensors.
I have found that LED, Florescent, and even some incandescent type lights
do not emit enough infra red to activate our sensors. If you look at my track
I have a couple of IR light bridges on my track to better read the cars.
I used some track lighting so I could spot the lights right at the sensors
and in most cases that worked. Where there are no sensors I used LED lights.
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Post by dynomike on Jan 26, 2021 9:54:10 GMT -7
What type of sensors are you using Dave?
I am using ldr's or opto sensors along with a pull down resistor to create a voltage divider. It is similar to what I used with the digital stop watch.
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Post by dave632 on Jan 26, 2021 10:59:27 GMT -7
They came with the TrackMate system, I don't know the number
but a drop down resistor was not necessary when I installed them
in the track.
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Post by AJR on Jan 26, 2021 11:31:02 GMT -7
Yes I should have chimed in about the type of light used for sensors. I have found that LED, Florescent, and even some incandescent type lights do not emit enough infra red to activate our sensors. If you look at my track I have a couple of IR light bridges on my track to better read the cars. I used some track lighting so I could spot the lights right at the sensors and in most cases that worked. Where there are no sensors I used LED lights. This is what I have read and experianced as well. I use IR sensors like the Trackmate systems use. I have those numbers if anyone needs them. I also order from a company called Digikey and the sensors are pennies on the dollar compared to what Trackmate wants for them. They have been fantastic and have anything that you would want. The IR sensors have been flawless in their performance. Never a missed or double count! |
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Post by GTS on Jan 26, 2021 12:12:46 GMT -7
Yes I should have chimed in about the type of light used for sensors. I have found that LED, Florescent, and even some incandescent type lights do not emit enough infra red to activate our sensors. If you look at my track I have a couple of IR light bridges on my track to better read the cars. I used some track lighting so I could spot the lights right at the sensors and in most cases that worked. Where there are no sensors I used LED lights. This is what I have read and experianced as well. I use IR sensors like the Trackmate systems use. I have those numbers if anyone needs them. I also order from a company called Digikey and the sensors are pennies on the dollar compared to what Trackmate wants for them. They have been fantastic and have anything that you would want. The IR sensors have been flawless in their performance. Never a missed or double count! Digikey is a great outfit to deal with, IMO. Here is a link to a post earlier in this thread. At the bottom of the post there is a link to the sensors I had good luck with. I had good luck triggering them with incandescent light but didn't want to go that route. Also had success triggering them with those HF battery flashlights with the led lights ( the ones they used to give away) I had them set up on a bridge across the track but didn't like the look. After that I went with the lighting I have now which works well with the sensors I mentioned earlier. They seem reasonable at $ .60 each, $ .40 each if you buy 10 at a time. These sensors are the same ones that the developer of the DRC software recommends. |
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