... I would hope not :-) I don't think the polarity was reversed, but to be honest I didn't check before unplugging it. I'm not sure but my guess would be no...
... How are you connecting to that header? Is it possible that the 13.8V might have touched one of the nearby pins for a fraction of a second? 13.8V can...
... Probably not. Any chance you bumped something and shorted 13 volts to something else in the process? ... Any 78L05 in a TO-92 case should work. ... I'm...
... I've fried one or two chips that way, but it only killed the MCU (and my weather station), not the regulator. Still, I haven't tried hooking up 13 volts...
Well, it appears to be dead. I got another voltage regulator at Fry's today and put it on the board but nothing seems to happen. Before installing it I checked...
... Already got your order in the mail. Hadn't seen this note yet, so I sent along a spare regulator just in case. ... Who makes the box, and do you have a...
I finally got around to building a full-scale test board for the power control function. I'm using a Fairchild RFP30N06LE power MOSFET. It's on a separate...
... Is this going to be turned into another kit? If so, I'll want some! Those would be great for our SAR rigs, and for my personal vehicle. -- Curt, WE7U...
... Possibly. I'm trying to figure out how to package the whole thing. I'm thinking about mounting the 10-pin header on the tracker upside down, so it'll...
... Screw terminals might reach a bigger audience, but if you force them to use APP's, then you'll make their life better in the long run. ;-) I use the 30-amp...
... I take this to mean that the total currently is around 10ma? ... Hmm, That'd be nice as an option, rather than standard (ignoring the price) I've purchased...
... Usually around 9ma at 12 volts. I was measuring it at about 8.7 ma the other day. With the sleep mode enabled, it was down to about 5.5 ma. Increasing...
Scott & all: I saw the traffic on low power consumption. Something I've recently become aware of are the Datel 780XNS switching voltage 'regulators'. They...
The LDO regulator I mentioned before has really low quiescent current, and 50 ma is more than enough for just running the tracker and triggering a power relay...
Looks like Freescale is still having problems meeting demand for the surface mount versions of the HC08KX8 processor, so it might still be a few weeks before I...
I like the idea of the 24-pin DIP! I thinbk it will have some advantages in respect to mechanical stability. A SIP can tumble more than a DIP, doesn't it? I...
I got a couple of LM2934 regulators for testing, and they seem to work fine in place of the 78L05 for U2. Power consumption at 12 volts drops to 6.8 mA in run...
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Aug 27, 2004 4:44 pm
362
Will not beacon in GPS mode – will in fixed position Good day! I have got my Opentracker to work while in the "fixed position" option, however when I put it...
It has to get a valid position from the GPS before it'll beacon. If it gets a valid position, you'll see the LED blink once. If it gets an invalid position...
I'm finally getting the weather mode configuration program finished up, but I haven't addressed multiple config profiles yet. To start out with, I suppose...
I've looked through the archives and manual for awhile and can't seem to find an answer to this, maybe I'm just missing it, maybe it's not there... Is there a...
Not yet. The problem there is that you need a counter to keep track of how long it's been since you've had GPS lock. RAM is getting really tight, and I need...
I just packed up a 10-pack order, and I'm totally out of microcontrollers. The next batch should be in tomorrow, or Thursday at the latest. Also, I've run...
Scott: Thank you for your help. I am using a Delrome Tripmate as modified per http://wes.johnston.net/aprs/tripmate.htm . I have now tried yet another known...
... That's right. You might check again with the config program and make sure it's still working and that something didn't get fried along the way. But if it...
I've uploaded the 1-wire weather station firmware for beta testing. It's been running reliably here for several days now. If you want to try it out, you'll...
Is there an inexpensive source of weather sensors??? The only ham running an APRS weather station in my town has recently moved away (and his never seemed to...
