Search found 99 matches
- Wed Jun 02, 2004 6:08 am
- Forum: General Discussion
- Topic: looking for schematic / plans
- Replies: 15
- Views: 6331
Re: looking for schematic / plans
Well, I'll bite. How about using an LM34? This outputs 10mV/degree and 100 degrees would be 1V. Then you could use one of the cheap LED panel meters and set the decimal point in the right place with a divider:<p> http://www.web-tronics.com/test-equipment-panel-meters-digital-panel-meters--lcd---led-...
- Wed Jun 02, 2004 6:01 am
- Forum: General Discussion
- Topic: PIC Programmer
- Replies: 15
- Views: 6477
Re: PIC Programmer
Hi Mike,<p>Have a look at http://tutor.al-williams.com -- these tutorials discuss the 16F873 which is the same as a 16F877 except it has fewer pins and slightly less memory. The core is exactly the same.<p>Also, http://www.piclist.com is a good resource.<p>As for projects, take a look at some N&...
- Tue May 25, 2004 2:59 pm
- Forum: General Discussion
- Topic: Unusual Blue LED source
- Replies: 4
- Views: 2911
Re: Unusual Blue LED source
Hi Edd. You have to wait for the shoes to go on clearance <p>That's 50 cents an LED. You can get them with less work for 50 cents/each: <p>.here<p>Of course, no shoes (I hesitate to call them flip flops around here).
- Thu May 20, 2004 1:33 pm
- Forum: General Discussion
- Topic: data i/o 201 EPROM Programmer
- Replies: 2
- Views: 1679
Re: data i/o 201 EPROM Programmer
Yeah, this is one that has been obsoleted and they don't support it at all, which means they pull the documents and everything as far as I know. They "sold off" all the old stuff to one of their old sales managers and they will sell you the users manual (but don't know if it discussess err...
- Thu May 20, 2004 10:29 am
- Forum: General Discussion
- Topic: data i/o 201 EPROM Programmer
- Replies: 2
- Views: 1679
data i/o 201 EPROM Programmer
Anyone have any documentation for this old EPROM programmer? I get a fail code 95 when it powers up and have no idea what that means. The CPU is obviously working since the LCD drives OK. The power supply board is ok disconnected, but the 5 and 5.5V supplies drop about 1/2 volt when connected to the...
- Thu Apr 01, 2004 5:22 am
- Forum: General Discussion
- Topic: USB microcontroller project
- Replies: 3
- Views: 1993
- Wed Mar 31, 2004 3:07 pm
- Forum: General Discussion
- Topic: science project
- Replies: 4
- Views: 2256
Re: science project
Take a look at http://www.wd5gnr.com/rfrem.htm and make a trip to Radio Shack. I think this will do what you want.
- Tue Mar 30, 2004 10:06 am
- Forum: General Discussion
- Topic: Corrected Xilinx Cable schematic
- Replies: 0
- Views: 1714
Corrected Xilinx Cable schematic
In the "A Really Solderless Breadboard" article this month, there is a link to JTAG schematic on the Xilinx site. It has moved and you can find it here now.<p> Schematic <p>Keep in mind that with the kit mentioned in the article, you don't need this schematic since the kit includes a suita...
- Wed Mar 10, 2004 10:37 am
- Forum: General Discussion
- Topic: Using transparencys for pcbs?
- Replies: 9
- Views: 3836
Re: Using transparencys for pcbs?
I've used transparencies. The key is to use ones meant for a laser printer since they will hold up under the heat. Also use a piece of paper between the iron and plastic just in case (hard to clean that plastic off the iron -- um, not that I'd know from first hand experience -- NOT!).<p>The good par...
- Mon Mar 08, 2004 2:51 pm
- Forum: Computer Programming
- Topic: Visual Basic help
- Replies: 4
- Views: 3590
- Fri Jan 30, 2004 5:38 am
- Forum: General Discussion
- Topic: Resistor keys
- Replies: 15
- Views: 5522
Re: Resistor keys
For a simple circuit I would also do this with a bridge. However, for microprocessor devices without A/D it is still easy to do this without an A/D.<p>You can hook the resistor up to a capacitor. Suppose the resistor connects between +5V and the capacitor. The capacitor connects from the resistor to...
- Fri Jan 30, 2004 4:29 am
- Forum: Computer Programming
- Topic: PBASIC II programming
- Replies: 2
- Views: 2852
Re: PBASIC II programming
I'm not sure I completely understand your question. The BS2 can use otherwised unused program space to save data. So presumably the answer is yes.<p>However, there are practical problems. Write to EEPROM is not very fast, so if you were trying to capture, say, 9600 baud data coming in large chunks, ...
- Wed Jan 21, 2004 5:49 am
- Forum: General Discussion
- Topic: Microcontroller Networking
- Replies: 1
- Views: 1404
Re: Microcontroller Networking
I'm not familiar with that particular board. However, what you want to do is possible (my book, Embedded Internet Design from McGraw Hill) shows several similar examples based around a TINI and a Javelin Stamp from Parallax.<p>Java is the easiest way (in my mind) to write network code for the PC. If...
- Wed Jan 21, 2004 5:46 am
- Forum: General Discussion
- Topic: Old Question Hoping for Fresh Answer
- Replies: 4
- Views: 1960
Re: Old Question Hoping for Fresh Answer
I don't know how far it is for you (but it has to be closer than Ca) but if you take a road trip to Dayton Ohio, Mendelson's http://www.meci.com/ is amazing. They have one entire floor devoted to electronic stuff and it is nothing short of amazing. You can't get a feel for the scope of it unless you...
- Fri Jan 16, 2004 7:58 am
- Forum: Computer Programming
- Topic: pic c compilers
- Replies: 3
- Views: 4920
Re: pic c compilers
For my money, the PIC 16 family's architecture is too odd for C. Yes, you can get C compilers but they aren't terribly efficient to me. Now the 18F -- that's a different story. For the 16's Basic is a good fit since the internal architecture maps well into the "virtual" architecture.<p>Tha...