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Re: How to get ISE working on Win 10 w/ Mojo

 by thebecwar ¦  Sat Apr 29, 2017 6:03 am ¦  Forum: FPGA's ¦  Topic: How to get ISE working on Win 10 w/ Mojo ¦  Replies: 2 ¦  Views: 2641

So update:

It worked on my laptop, didn't on my desktop. Back to the drawing board I guess.

How to get ISE working on Win 10 w/ Mojo

 by thebecwar ¦  Fri Apr 28, 2017 8:17 am ¦  Forum: FPGA's ¦  Topic: How to get ISE working on Win 10 w/ Mojo ¦  Replies: 2 ¦  Views: 2641

Xilinx has made it abundantly clear that they have no intention to support the Spartan 6 going forward. The toolchain that you have to install in order to make the Mojo IDE build your project is not supported. The 64 bit version of the toolchain doesn't work on Win 10 at all. (It may work for you. Y...

Re: Apartment Mailbox

 by thebecwar ¦  Mon Jul 01, 2013 7:11 pm ¦  Forum: SparkFun Product Questions ¦  Topic: Apartment Mailbox ¦  Replies: 22 ¦  Views: 2777

I'm assuming here that the building was built and has not been modified since before the ADA was signed in 1990. Is this a bank of mailboxes in an apartment building? Is the mail put into your box through a slot, or does the postman (letter carrier is the PC term) have a master key to the boxes? You...

Re: LPD8806 LED Strip Code Questions

 by thebecwar ¦  Wed Jun 26, 2013 5:04 pm ¦  Forum: SparkFun Product Questions ¦  Topic: LPD8806 LED Strip Code Questions ¦  Replies: 2 ¦  Views: 1169

Let's look at the questions one at a time... 1) Does "tick" just continue to count up to 4,294,967,295 (because it is an unsigned long) and then stop? What is the point of this? In an ideal world if tick is the maximum value for your particular long int, and you do "tick++;" you should end up with t...

Re: WS2801 LED project needs a huge voltage regulator? maybe

 by thebecwar ¦  Wed Jun 26, 2013 4:04 pm ¦  Forum: SparkFun Product Questions ¦  Topic: WS2801 LED project needs a huge voltage regulator? maybe? ¦  Replies: 17 ¦  Views: 2281

Yes, but not exactly. The stove is 50A at 220V, we're talking 12V, so for the equivalent power from a 120V wall outlet you need 4.5A (10x the voltage, 1/10th the current). Assuming the supply is 100% efficient. The stove and fridge were offered as a comparison. Yes, to dissipate the amount of power...

Re: One Wire Sensor reading delay

 by thebecwar ¦  Tue Jun 25, 2013 7:34 pm ¦  Forum: Arduino ¦  Topic: One Wire Sensor reading delay ¦  Replies: 5 ¦  Views: 2106

Glad it worked for you, and thanks for posting your code.

Re: WS2801 LED project needs a huge voltage regulator? maybe

 by thebecwar ¦  Tue Jun 25, 2013 7:04 pm ¦  Forum: SparkFun Product Questions ¦  Topic: WS2801 LED project needs a huge voltage regulator? maybe? ¦  Replies: 17 ¦  Views: 2281

Can a backpack be included? How about a cart/wagon? A 12V UPS battery, or a power wheelchair battery would give you the current you're asking for, but at 45A, you're not talking a huge amount of time. A 55 pound 12V 75Ah wheelchair battery, would give you less than an hour and a half at 45A. A 100Ah...

Re: how to multiply and divide frequency from 555 ic

 by thebecwar ¦  Tue Jun 25, 2013 4:20 pm ¦  Forum: SparkFun Product Questions ¦  Topic: how to multiply and divide frequency from 555 ic ¦  Replies: 28 ¦  Views: 3013

OP, You'll probably find that there aren't many people here who will hand you a solution to a college project. I'm hoping the language difficulties are coming because you are not a native english speaker. Without knowing why you've decided not to have a microcontroller there's no way any of us can u...

Re: Learn the basics of electronics

 by thebecwar ¦  Mon Jun 24, 2013 7:25 pm ¦  Forum: SparkFun Product Questions ¦  Topic: Learn the basics of electronics ¦  Replies: 3 ¦  Views: 395

Do you have something specific in mind? There's a lot of possible topics. (digital design, analog circuits, DC theory, AC theory, logic, embedded systems, RF, etc...) Some things are covered well, some not. Knowing what specific topics you're looking for could help the people here give you some more...

Re: One Wire Sensor reading delay

 by thebecwar ¦  Mon Jun 24, 2013 7:17 pm ¦  Forum: Arduino ¦  Topic: One Wire Sensor reading delay ¦  Replies: 5 ¦  Views: 2106

From a quick glance at the temp sensor library, it looks like you can prevent the system from waiting on a conversion. This is an untested idea (I don't have this temp sensor or the display you have) but hopefully gets things started in the right direction. // sets the value of the waitForConversion...

Re: how to multiply and divide frequency from 555 ic

 by thebecwar ¦  Mon Jun 24, 2013 1:08 pm ¦  Forum: SparkFun Product Questions ¦  Topic: how to multiply and divide frequency from 555 ic ¦  Replies: 28 ¦  Views: 3013

How about a VCO like a ltc6990?

Re: Arduino Power source (Car)

 by thebecwar ¦  Sun Jun 23, 2013 6:49 pm ¦  Forum: Arduino ¦  Topic: Arduino Power source (Car) ¦  Replies: 7 ¦  Views: 2056

What I'd use: C1 - 100uF 20v electrolytic C2 - .1uF 10v electrolytic C3 - Not needed. The caps are really just there for smoothing the input and output, and exact specs are not necessary. Whatever you can find is probably fine, as long as you leave yourself a little safety margin in the voltage rati...

Re: Arduino Power source (Car)

 by thebecwar ¦  Sun Jun 23, 2013 5:55 pm ¦  Forum: Arduino ¦  Topic: Arduino Power source (Car) ¦  Replies: 7 ¦  Views: 2056

I don't see why that wouldn't work, but it doesn't sound like you need that much current. A LM7805CT takes 7-20vdc* and regulates it to 5v (1A), and costs less than a candy bar. Add a pair of small filtering capacitors and maybe even a protection diode, and you're still not talking about a lot of mo...

Re: energized circuit detection

 by thebecwar ¦  Sun Jun 23, 2013 5:27 pm ¦  Forum: SparkFun Product Questions ¦  Topic: energized circuit detection ¦  Replies: 17 ¦  Views: 1490

Is the motor shaft exposed? A magnet and a hall effect sensor could get you the information you want. (Plus the added bonus that with a tweak it could give you shaft RPM.

As a side note, I wouldn't recommend the use of automotive style splices on 120VAC.

Re: Making a DC Powered USB Charging Stick/Hub

 by thebecwar ¦  Sun Jun 23, 2013 5:14 pm ¦  Forum: SparkFun Product Questions ¦  Topic: Making a DC Powered USB Charging Stick/Hub ¦  Replies: 2 ¦  Views: 463

http://www.amazon.com/Antec-Quad-Chargi ... harger+hub

There's really not a lot available as 'snap together', especially when you're talking about 3-4 A of supply current.

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