On 9 August 2013 03:50, Mark Sims <[email protected]> wrote: Hi Mark,
I'm not sure why you needed to start a new thread - why not just add to the old one? > I also use a blinking status LED controlled by an ATTINY13 AVR chip. It also > reads a temperature sensor and controls a PWM'ed fan. The LED blinks out the > temperature. In Morse Code? Now that would be a bit of fun! If has he says that has an open-collector output, I can't understand why one would not just add a resistor and LED and use it. > BTW, the guy made a lot of bad decisions in his build. FOr instance, he > should have brought out the Rb frequency/PPS signals to BNC connectors and > patched them externally into the input BNC's. That way he could use any > unused amplifier channels for other things. I mentioned some things I felt were wrong, and one in particular (BNC terminals) I appeared to be wrong about. But I also wrote I felt it was unwise not to use the 1 PPS output. But if you have other thoughts, about where he went wrong, apart from those I mentioned in my post yesterday, I would be interested. > If you want to get fancy, you can run a speed controlled fan on the heat sink > to regulate the temperature. You still want to pick a temp that's as low as > you can practically get it for your control point. My unit arrived today. It looks OK. I've not tested it yet. Dave, G8WRB _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
