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Nice project, David. I'll check it out. I've actually already written my own wireless controller with a web interface fairly similar to yours it appears! I am just interested in checking out the great work here in the HM project so that's why I was hoping for a simple way to get the HM software...

I started messing around with QEMU, the image booted but I started to get into that headache territory I mentioned earlier... I'll look into the re-compile. As far as flashing the ATMEGA, I flash that sucker wirelessly over serial with the esp8266 all the time! (esplink)

What emulator are you talking about? I know serial access to arduinos from Virtualbox is no problem. Heatermeter sans rpi. Just put a hc-05 or esp8266 on the rx/tx -> wirelessly talk to the desktop computer inside the house that's running the server.

I'm sorry if this is a bit off topic, or covered else where, but can the OpenWrt image be run from a virtual machine? Or be made to run from a virtual machine with minimal headache? OR the heatermeater software be installed in a virtual mache (w/ minimal headache)?

I'm out toward Frisco, enjoying all the rain and hail this week. Are you in Dallas proper? Did your BGE weather the storm?

Got it, thank you. ONE last question, then I'm done... no promises. What's the size of the draft tube?

That's okay, I got ya. But I am curious if the plastic is protected from falling embers? I know embers fall down to my bottom damper all the time. Finally, I know you said this is just for low and slows, but what is the highest temp you've manged to get with it? (BGE is just too easy to run...

Looks like great results! I've been working out my damper only bge controller as well. Can we get more pictures of the internals of the damper? I'm a little confused about how it's operated. Also, do you have anything to protect ashes and little bits of lit charcoal from falling in there and...

That's what I was kind of thinking I'd do, thank you. I guess I could solder the nipple to the sheet metal if I still don't like the way it threads on. And hey, I have the same bit set!

What are most people using to attach their micro damper to their cookers?

What ss locknut and where did you get it? Have a link? The 1" ss nuts I found are 3/8" thick, that won't work for my setup!

What I mean to say is that the 1" opening seems limiting in ramp ability and higher heat cooks (without a fan). In my experience on the BGE, using nothing but the stock dampers, if I open the bottom damper all the way I can go from ~200F to ~700F before I have time to go get my beer! No fan...

These tests are perfect timing. I've been wondering why there hasn't been much more work done on damper only controllers. I imagine that the 1" hole is pretty restricting when it comes to damper only. Here is an idea I started drawing up the other day for my BGE, I was thinking I'd make it out...

So the feedback is used to monitor the PWM? And adjust it to more accurately hit a voltage? More complicated than that?

I was poking around the schematic again... I don't know why I keep doing that, I just confuse my self. On the blower circuit there is a 12v_fb that goes to ADC1 on the atmega. What is this? Or rather how does the HeaterMeter use it?

What is TC?

Yeah.. I get that a lot. Anyway, after a little more research it *appears* that this RC filter has negligible impact, if any, on the voltage readings. So it's all for nothin.

I understand it doesn't change the resistance of the thermistor, but I would have thought the change in circuitry would have changed the voltage reading at the arduino. Would the calculation of the resistance of the thermistor not now be a combination of a resistive divider AND an RC filter...

I was poking around the schematics on github and had a question and was hoping Bryan or anyone could chime in. The standard way to read a thermistor is to make a simple voltage divider, take an analog reading, and given the known value of the fixed resistor you calculate the resistance of the...