T&L Publications

Ok, I've smoked my 3rd µC with this project.

My de-sulfator is now offline for at least a week. Time for some 4n35 chips (x20 for $3)...

Still getting positive results MrAl?

psycho, Truly sage advice, thanks! I've learned to expect such things in my programming travels and have already encountered similar undocumented "features" in the uCs I've played with. For the example you gave, at least you were able to find a corresponding note in the errata. Sometimes w...

Goner19, I've been using a BS2, some PICAXEs and an Arduino board for some time now. You just can't beat the doco that comes along with them if you're new to microcontrollers. Learning C and getting an LED to blink too is more to bite off at one time than it seems. I wish the same strategy had worke...

I was curious about the same thing: my post I guess the mechanisms that break the circuit in AC and DC units are fundamentally different. Too bad, one can find AC circuit breakers just about anywhere but the DC ones are hard to come by (unless you want to leave your first-born at West Marine in exch...

Give ClamWin a shot. I believe they still support Win98 flavors:

ClamWin

It's well-supported and free (as in beer).

Just this past Thursday evening I helped a friend whose computer had really slowed down for some reason. "Some reason" was the McAfee install that came "free" with his AT&T U-Verse package. It was hogging half of his available memory and the resident protection consumed 30-50...

I've upped my pulse width to 20us to try and make things happen more quickly. It's been running for about an hour at 20us/100Hz. No change in battery voltage yet.

I'm watching the 'scope to see if there's an internal resistance change (or at least what I think looks like one).

I'm working with a 12v golf-cart battery now. Here's a picture of my o-scope screen with the probe connected to each side of my 48v supply:

o-scope

v-scale = 2v
h-scale = 5ms

on this larger battery (27Ah), the voltage isn't creeping upward at 100Hz (10us pulse).

The PWMOUT command on the 08M is a bust.

I'm approximating a 10µs and 100Hz with: So far, no increase in battery voltage in half an hour...

Dean, I swapped the attenuator mods between channels and no change. So, I started looking at the switch contacts. There was a piece of lint or something poking out from underneath the second in line from the front panel, so I blew on it to dislodge it with the switch rotated to a position where this...

So I'm pretty sure I wasn't making any progress whatsoever in my experiments prior to obtaining a 'scope. It seems there wasn't any pulsing going on at all. I now appear to have something working... I'm toying with a small SLA (12v, 4Ah) I have just to keep from frying one of my much more expensive ...

For the desulfation circuit, I've already determined that my duty cycle isn't doing what I thought using my working channel 2. Great to have the insight a 'scope lends you, I'll keep at it. I'm hoping Mr. Huster will read about my problem with CH1 and that he's seen it before. Meanwhile, I've asked ...

I've got a manual and a Tek troubleshooting guide. Now if I could just get a clue...

I got jealous of MrAl's ability to see his 6v battery's internal resistance dropping over time on his 'scope ( desulfation thread ). So, while I was at Halted today, I picked up a Tek 465B they had sitting on the shelf. I had read in a few places that these were relatively serviceable workhorses and...

If you find any good posts about a DIY ODBII interface, please post. I poked around for one some time ago and didn't have any luck.