Okay thanks! Just wanted to make sure before I play around with it to prevent burning down anything :)
Now I've heard that some fuses take a little bit of time to "break" once they go past 10 amps. Granted this time is very short, but should this be worrisome at all to the relay? What were to...
Hey guys, hopefully this is the right subforum..
Anyways, I am wondering how to read the ratings of a relay. Here is what I am looking at:
http://www.ebay.com/itm/5pcs-5V-T73-SRD-5VDC-SL-C-5Pin-10A-Relay-Module-Arduino-ARM-PIC-AVR-DSP-/161755474571?pt=LH_DefaultDomain_0&hash=item25a960aa8b...
Hello all,
My robotics club at school will be entering the VEX Nothing But Net competition. We are beginning to design the robot and it's launcher specifically.
We want our flywheel design to be two wheels on each side, on a horizontal line like this. We would squeeze the balls between the...
How did you come up with 560 ohms? Why no more than a β of 10? Is there some sort of calculation that says how much current must be put into the base to close the transistor?
Explain what would happen if I used a 4.7K vs if I used a 560 Ohm resistor?
Yeah, it only uses what it needs and it has a maximum. The power supply I ended up using is a 1.5 amp, 12volt power supply, more than enough for everything.
Okay I got some help from the forums over at the Arduino website. They helped me fix my diagrams and helped with more specific data. Here is my current diagram:
https://dl-web.dropbox.com/get/Stoplight-Project-2%20(4).png?_subject_uid=104089738&w=AAAuMEOU3iZPAZN4dS0Na0zjFg24NrpPvWF92cWvUavJ8g...
Oh I see, a photoTRANSISOR. Turn everything on when a light source is detected. Yes, I will do this then, it would be better.
Also, what's the status on my response to post #62(your post)? Post #63 is my response, I just wanted to make sure that I understood what you explained.
EDIT: Are you...
Like I said, I am new to all this stuff. So this is really helping. But one thing I thought the transistor was to do was to act as a switch for the leds. The transistor would complete the circuit when it is provided a current. Isn't that what I did?
At least how I thought I designed the...
Thanks. The Arduino chip will send a 5volt, 40mA signal when I program it to, triggering the transistor.
Why do you suggest resistors wattage should be rated at least 3 times higher?
Haha I won't. It'll be a few weeks until I get the parts in.
Just to confirm, to calculate the wattage rating I should get for the resistors, I should use P = I^2 * R which is Watts = Current^2 * Resistance. In this case, I would just need a half watt for this circuit.