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This is great! This will be perfect for my Pebble when my phone gets really heavy and I can't lift it out of my pocket.

I will have to build a second one if you do a black solder-mask and I can get a clear case. That would be awesome.

Got mine soldered up and it's working great - thanks.

Count me in please.

I'm planning on upgrading to the new version soon and could sell you my prebuilt HeaterMeter.

Ugg. That was the exact thing I was hoping to avoid. Wasting everyones time here because I can't follow instructions like my teachers always said. :) Thanks Bryan your advice was right on from the beginning. I guess I should be happy that I didn't manage to fry something with my mistake...

I did do step one. I tested and it was disconnected from ground. I'm a little concerned that solder may have wicked up and shorted it to ground again, but I don't think so.

So the fan is working now. On a hunch I removed the jumper I added as described in this post. I soldered it to the what I hope is the other ground on the power connector (J9) and things worked. So Bryan any insight?

Front and back. The LCD display header is a mess but works (I initially soldered it on the wrong side). Full resolution Full resolution

Everything looks clean of solder bridges and I'm working on pictures. With everything unplugged and turned off measuring with my multimeter there is a dead short between pin 4 (Ground) and pin 5 (Blower). That can't be right, correct?

I believe the diode is installed correctly but I will double check. Also the RJ45 looks clean, but I will verify. Thanks! If anyone has any other suggestions I will try it. One thing I noticed in trying to measure a voltage on the blower output. There was like -0.8v between ground and...

Yes, with the fan unplugged (even with the rPi disconnected) it still does it. My power supply is the 1A version suggested off of Amazon.

First build trouble. It appears that everything is working properly with the exception of the fan output. The servo works great as well as all the probes. I initially thought there was a problem with pit probe connection because when I plugged a probe in the HM freaks out (see video). If I...

The instructions say: "Install the 16MHz resonator (the larger yellow orange blob) in the unlabeled oval by the IC2 DIP socket." But nothing is mentioned about which way it should face. Any suggestions?

Does the resonator part Y1 need to face a certain way on the HM v4.1? Or does it not have any polarity. Thanks

Typically the 12v outputs on projectors and a/v equipment only outputs like 20mA's, Sony's are among the lowest . Don't quote me, but for a small relay like you have you'll need like 200mA's. What you need is something like this...

If you are using the projector to trigger the relay directly, a lot of times the projector just outputs a few milliamps that's not enough current to flip and maintain the relay. Have you tried to activate the relay with a 12v battery or something like that?

I'm in the same situation as CMorris. I'm interested to know how this affects the v4.1 boards.

At 400 degrees the plastic roto-damper will be a puddle before the zinc hits its melting point.

I need a HM v4.1 board.