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Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
**broken link removed** Instructables has a few pretty good tutorials on making PCBs using the demo version of Eagle CAD.
The program that I use is expressPCB ExpressPCB - Free PCB layout software - Low cost circuit boards - Top quality PCB manufacturing. They churn out really high quality...
I see no reason why you could not use any thing on port A for other purposes. Just add a switch with a pull-up to pull-down to the pin. Blueroom is right if you want to stop the motor then stop sending step commands..
It sounds like you are wanting something like a limit switch to prevent...
The I2C pins on the VGA connector are for device identification. They are not required. They are used by the host hardware to determint things like supported resolutions, refresh rates and if drivers are required for the display.
So for your needs they will not be required.
Here is a project that you might be interested in.
https://www.ladyada.net/make/gamegrrl/index.html
This guy also has a lot of information about making homebuilt personal gaming systems. Benjamin J Heckendorn is considered to be the ultimate guru of homade portable gaming systems...
Are you planning to have this board made or make it yourself?
Looks a lot like ExpressPCB software to me but maybe they are the same.
I would agree with TrevorP as the board seems really spread out. Just from personal experience it always helps to make the traces look nice as that usually...
I have used both the LM34 and the LM35. Never used one with an external voltage refrence before. Usually either just hook the device directly to the ADC pin or run it through an opamp to up the voltage sensativity.
good luck,
kingpin094
Depending on you budget you can get WiFi to RS232 servers that are pretty small. The show you like a TCP port on the server side so I would guess that they are prety easy to use.
Here is an example: **broken link removed**
I have used simirar devices that do ethernet to RS-232 with great...
The bigger question is what are you planning to do with it? If you don't need the ability to run in harsh environments there are other SBC type devices that would offer the same sort of flexibility at a fraction of the price.
kingpin094
I will start this off by saying that I am not an audiophile, so be nice. I am not a noob to electronics
just to making audio base circuits.
This is on of those projects that came up out of the pile of stuff and a general desire to take a
break from the other 12 projects that are currently...
I don't know of any cheap off the shelf part that will composite 2 video sources together. I used to work for a company that designed display for avionics and one of the display lines hard PIP. But the chip used was really expensive and hard to use. The other problem you are going to find is...
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