Type in the full discussion title or a part of it.
Discussion Title Created date
Capacitive humidity sensor interface, how?
I have picked up this humidity sensor. Datasheet rates it at 330pF at 55 percent RH, with a 0.6pF per percent gradation (so range is 300pF-360pF for 1 percent to 100 percent RH...
Tuesday, 15 September 2009 - 21:21
RTC + backup battery question...
I am currently designing a very small "stamp" board to fit any of the 64-pins QFP (and maybe also lesser pin-count chips via a superposed footprint) Mega chips that will contain...
Saturday, 12 September 2009 - 23:47
Direct Toner transfer PCB masking method...
Saw this, looks neat, going to have to try this... Anyone already uses/used this method before? His 3-mils strip looks pretty impressive, definition looks somewhat better than...
Tuesday, 26 May 2009 - 14:18
USB Type A Male Connectors... Source?
I am having a bit of a problem finding a small quantity (1-100) supplier for those connectors at affordable prices. Digikey and Mouser carry them, but at a whopping 3$ each, which...
Tuesday, 7 April 2009 - 21:01
Constant current programmable load, concepts and ideas...
I will need soon to design a programmable load to test the 2.5v 60A power supply I have built for my little electrolysis project, and I was wondering if you freaks had any...
Saturday, 28 March 2009 - 16:59
Altium PCB editor question...
I realize this might be a little bit off topic, but hey this is general electronics... ;) I am looking for a feature I know probably exists in Altium, but I can't find it... Maybe...
Saturday, 21 March 2009 - 14:58
Looking for OBD-I link specs for '92 Olds Eighty Eight...
I post here because googling this only returns a crapload of programmers and devices I have no interest in. (Amazing how suddenly Google went from a search engine to a publicity...
Monday, 2 March 2009 - 18:29
LC filter for automotive power entry.
I have been struggling for the last few hours trying to find a suitable power inductor for a LC filter at the 12V (car 12v) power entry on my board. The reference design used...
Thursday, 26 February 2009 - 19:52
Voltage division at high power.
I have a very simple objective, yet a reasonable solution eludes me. I need to convert a 12V DC source to 2V (or close), however I will be drawing around 25 to 30 amps from that...
Tuesday, 17 February 2009 - 17:54
Radio telescope filters, low noise amplifier, downsampling.
Hello folks! I am contemplating the idea of building myself a radio telescope from an old c-band big dish, with a computer-controlled azimuth/elevation control. The mechanical...
Tuesday, 5 August 2008 - 18:29
USB AVR ISP Adaptor With Digital Isolation.
Hello freaks! I came upon an extremely easy programmer that works with AVRdude and uses the COM port, the old ISP Adaptor ( http://elm-chan.org/works/avrx/a... ), and I decided to...
Thursday, 12 June 2008 - 19:33
Advice on robotized Dremel table project.
Hello freaks! Ok i have had a little woodworking project in mind for a while now, however, due to lack of tools, time, and money, have been putting it aside for awhile now... To...
Saturday, 10 May 2008 - 17:38

Pages