|mezsgcxea||TARİX: CÜMƏ, 2014-11-07, 12:07 PM | Message # 1|
|in reverse when exposed to IR, it produces voltage. I would have liked to attach an interrupt to this setup but did not realize what was necessary, so in this case, the loop() is fast enough to detect a ball moving fairly quickly. |
the video below shows the prototype circuit in action.
Also I have attached an image showing the emitter/detector setup, the pins connected to the teensyduino and the arduino code I used to test the setup.
An improvement would have been to get some phototransistors. These would have allowed me to use interrupts in the code which may have made detecting the balls faster but overall the results are good.
I used crossdowels and machine screws to join the plywood pieces together for the motor mount mostly.
To to this involves drilling a hole through the face of the plywood. The hole needs to be large enough for the crossdowel to fit into and far enough from the edge of the wood that the wood will not be weakened. I leave a space at least the thickness of the plywood for strength.
Then a hole is drilled into the edge of the plywood so that it intersects with the hole drilled above.
Next a hole is drilled through the face of the plywood piece that you want to connect to the above piece. This hole and the hole <a href=http://www.uggpascherfrance.fr>ugg pas cher en france</a> through the edge of the other piece should be the same <a href=http://www.uggminipascher.fr>ugg mini classic pas cher</a> size large enough for the machine screw.
Probably I am making this overly complicated but I think this is a very strong and simple way to join plywood together.
If you wanted to make many joints you would want a jig, but I found that with only a minimal jig it is <a href=http://www.bottesuggfemmepascher.com>botte ugg femme pas cher</a> possible to make perfectly good joints.ï»¿Putting Together A Transitional Wardrobe
The change between seasons can make dressing quite difficult; one minute it's freezing cold and snowy and the next it's fairly pleasant and sunny, <a href=http://www.magasinuggparis.com>magasin ugg geneve</a> and so what may have worked for the winter probably doesn't for spring days. That's why it's so important to have a transitional wardrobe.
A transitional wardrobe is a versatile one that has key pieces that work for any season and any weather; perfect for those in between months when the weather just can't figure itself out. Being able to take one item of clothing and wear it for a cold day and then on a warmer day is key to making your transitional wardrobe a success.
It can be difficult to figure out what coat or jacket to wear when the weather is a bit hit and miss; you don't want to be too warm but you don't want to get soaked either. That's why it's always a good idea to have certain coats and jackets in your wardrobe. A simple waterproof mac is certainly <a href=http://www.ventepriveeugg.fr>vente de ugg pas cher</a> handy and can even be popped into your bag, while a lightweight fleecy jacket can be worn underneath for extra warmth if needed. For something more fashionable a leather jacket will work well, but you'll need to carry an umbrella with you because most don't have hoods.
Similar to picking your outerwear, footwear is another area that is important in a transitional wardrobe because it needs to be comfortable, waterproof and stylish. With boots it's best to