Show Posts
Pages: 1 ... 18 19 [20] 21 22 ... 191
286  Using Arduino / Displays / Re: New "Bubble" display! on: August 12, 2014, 09:22:03 pm
I think others have discovered these bubble displays and know they are a one time offer.
They are getting them before they are all gone.

The bubble-Licious board makes them almost plug and play.
287  Using Arduino / Displays / Re: New "Bubble" display! on: August 12, 2014, 08:56:48 pm
Just got my Bubble-Licious cards.
They look and work great.
Can't wait to get them in some projects.
Sparkfun bubble displays down to 1,727 that is -100 per day.

I finalized the vertical mounting by using two 12 pin right angled female headers ($1.00) and one 24 pin wire wrap socket ($1.00).

EDIT:
I used a piece of old 1/16" PCB material to raise both female headers off the Bubble-Licious surfaces to get the 0.3" spacing needed for the wire wrap socket.
 
Thanks Crossroads.


288  Using Arduino / General Electronics / Re: Mounting LCD on: August 12, 2014, 02:04:16 pm
4 ways to avoid screws thought the panel front, see image below:
289  Using Arduino / General Electronics / Re: Help in Understanding Relay on: August 11, 2014, 11:18:26 pm
3A/5A. 28VDC 220VAC
If they are rated at 3a at 28vdc you can drive DC watts of  84
If  they are rated at 5a at 220vac you can drive AC watts of 1100

Can put contacts in parallel.
290  Using Arduino / Project Guidance / Re: Word lookup table on: August 11, 2014, 10:38:45 pm
May show us some code that you are currently using for this.
291  Using Arduino / Microcontrollers / Re: Voltage Regulators Being Used on: August 11, 2014, 10:36:22 pm
I don't have one but the schematic does show a 3.3 reg.
292  Using Arduino / General Electronics / Re: Help in Understanding Relay on: August 11, 2014, 10:31:24 pm
Show us a link to the relay data sheet.
My first thought would be this has a 12 volt coil with contacts rated at 5 amps each.
You could put the contacts in parallel.
But we need to see the data sheet to see what voltage the manufacturer gives to the contacts rated at 5 amps,
This could be 12 volts at 5 amps or 120VAC at 5amps etc.
293  Using Arduino / General Electronics / Re: Confussing Loading Computation on: August 11, 2014, 10:25:10 pm
To get the exact wattage you need to measure the exact current and voltage involved.
294  Using Arduino / Programming Questions / Re: Void loop() makes confuse me.. on: August 11, 2014, 09:26:40 pm
Quote
compiler doesnot goto second function
How do you know?
295  Using Arduino / Project Guidance / Re: Word lookup table on: August 11, 2014, 09:24:59 pm
Sure
Or
get a Atmega1284 with lots of memory. (Bobuino2)
296  Using Arduino / Programming Questions / Re: switch statment changes for no reason? on: August 11, 2014, 06:11:48 pm
Quote
t also seems to reset every now and then...
What resets?
297  Using Arduino / Programming Questions / Re: can or should this sketch be converted into an array on: August 11, 2014, 05:28:10 pm
If it works and you don't need the memory space leave it as is.
Should you, it's up to you.

Sometimes it's faster if you omit a loop and do as you have.
For practice, I would use arrays for learning purposes if nothing else.
For readability arrays and a loop can make sense.

This is a good read, may not answer your question though (see page 13)
http://www.atmel.ca/Images/doc8453.pdf
298  Using Arduino / Programming Questions / Re: The difference between while and if statements. on: August 11, 2014, 02:17:58 pm
They do the same thing in this case.
Quote
The while statement would run until it was not true.
With this line, it makes it not true immediately.
lastTime += DELAY;
299  Using Arduino / Programming Questions / Re: The difference between while and if statements. on: August 11, 2014, 02:06:57 pm
Quote
What is bad about goto and labels.
Have you heard of spaghetti code?
300  Using Arduino / Programming Questions / Re: The difference between while and if statements. on: August 11, 2014, 01:58:47 pm
Quote
those if and while statements would not be the same there.
They do the same thing in this case.
Pages: 1 ... 18 19 [20] 21 22 ... 191