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Q-bert controls software asjustment ?
juggle50:
Thanks for the reply Level. I was going to use this one. I've never used a relay before, but I think this is the one that sir poonga recomended. Did your knocker arrive?
http://www.radioshack.com/product/index.jsp?productId=2062478&cp
SirPoonga:
--- Quote from: juggle50 on June 21, 2006, 01:24:06 am ---I think this is the one that sir poonga recomended.
--- End quote ---
I will tell you why I recommend it, I hope I am reading this correctly. Someone can correct me if I am wrong.
It seems like it takes 5V/1A it activate. The switched side can take 60V. Not sure if the amps is good though.
2600:
Juggle50,
You need a diode across the relay and you should get a fuse as well.
When setting up and testing DO NOT hook up the knocker, or anything on the output of the relay for that matter. You will be able to hear the relay. You need to get the relay to ONLY trigger when you need it to, a quick on-off. You DO NOT want it to go "rat a tat tat". This will require testing and a little patience.
The relay is fast, but may be a bit weak and a it's a little fragile. It only takes a few milliamp to activate it, like 20ma. I think they might have some information wrong on their site or I'm misreading it.. It can only handle .5 Amp or 10Watts and you are probably going to go over that. Doubt it would kill it initially, but it will shorten it's life span. I think they have a better one for like $5. Not much info on it though.
http://www.radioshack.com/product/index.jsp?productId=2062480&cp
Really busy sorry can't help more.
juggle50:
Hmmm, I know nothing of diodes and barely understand relays. I just did a little research. Am I correct in saying that the purpose of the diode is to restrict the current to only one direction so current does not flow back into my ledwiz?
Is the purpose of the fuse so that the relay will not get blown?
I know it isn't anyone's job to hold my hand, but if you would be so kind as to reccomend a type of fuse and diode and maybe draw up a little circuit diagram for a moron. I would greatly appreciate it. This project got a little more out of my league than I first expected.
Let me know if the general consensus is that a relay would be too slow, if there are alternate routes to get the project to work with a ledwiz
Thank you again for all your help Poonga, 2600 & Level, I'm learning a lot.
2600:
The purpose of the fuse is protect the knocker. If the relay does get stuck or something then you want the fuse to blow before your knocker does. Connect it just like a real Q*Bert does and use what everyone else does.
The diode protects the relay itself from a short life and also other devices. Off the top of my head 1N4001 should be fine, I think. The coil should have a diode as well just in case you want to check.
I don't think the speed of the relay will be your problem.
Don't have time to draw it up right now. Try to draw it yourelf and myself and others can try to comment. Don't forget to test the circuit without the knocker connected.