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  1. D

    Proper wiring for HM Case with Switch.

    Thanks! So, I bridged those pads and I'm not sure it solved anything. I took better notes this time with the readings as I plugged/unplugged. -With the RDTC with the probe inserted connected to the HM, I powered up and it registered 807. -I unplugged the Cat5 from the RDTC and it showed no...
  2. D

    Proper wiring for HM Case with Switch.

    I'm not throwing in the towel.....yet!! I reconnected the TC amp on the HM and it operated as it should, aside from being high and oscillating within 3-4 degrees, but it was doing that before, after I had calibrated the offset using a pot of boiling water I was offsetting -10 degrees. The...
  3. D

    Proper wiring for HM Case with Switch.

    Thanks, Ralph. I will work on reconnecting the TC amp on the HM board tonight. I actually soldered that up myself originally. Maybe I was lucky mixed with a healthy dose of naivety, but aside from finding the short on that mini IC on the RDTC, I thought the SMD soldering was much...
  4. D

    Proper wiring for HM Case with Switch.

    Got the 100K resistor back in place and saw all of the food probes were back running. The pulled up end of the 100K was still connected to pin7 of the cat5 jack. So I finished wiring that cat5 jack so that the RDTC would be good to go. The food probes on the RDTC were working great too! I then...
  5. D

    Proper wiring for HM Case with Switch.

    I reinstalled the software on the card and plugged it back in. I also reseated the ATMEGA. I was still seeing those crazy offsets, but was able to reset the configuration on the LCD, and that cured it. From there, I was then able to get into the GUI on my laptop and changed the probe type to...
  6. D

    Proper wiring for HM Case with Switch.

    Doh! Yes. I'm an idiot. So I mated the RPi and connected the cat5 as I should have before. No HM is found when I go to the registration screen. I also scrolled through the LCD menu and noticed my Pit probe had a 100 degree offset then the next probe was listed like this, then a no name probe...
  7. D

    Proper wiring for HM Case with Switch.

    I added the jumper back from ground to pin 8. Still no output from RDTC. That is the only additional wiring that would be added to this photo to match my current build: https://drive.google.com/file/d/0BzS...ew?usp=sharing When I plugged my HM Cat5 jack into my router in order to access the...
  8. D

    Proper wiring for HM Case with Switch.

    After wiring the lifted end of the 100K resistor to the empty pit probe hole, I still didn't get any pit probe readings. Before plugging in my TC probe, the voltage measured 3.3V along the path from the 100K resistor circled above to the ATMega. After plugging in the probe, it measured .14V...
  9. D

    Proper wiring for HM Case with Switch.

    This is the trace that is broken. It looked like you believed it was the other side of the board. Does that fact change anything? Do these symptoms indicate I might have pulled off both traces on this pin? I tried to get a good hi-res close up, but couldn't get a clear shot. All pins on the...
  10. D

    Proper wiring for HM Case with Switch.

    Thanks Ralph - I will have to digest this later tonight. I'll be sure to be as detailed as possible on what I give you back, I really appreciate your help and patience with this.
  11. D

    Proper wiring for HM Case with Switch.

    I did a continuity check and none of the 3.3V pins showed continuity to ground. So, no shorts, right? I do have continuity between the convenient empty hole for the pit probe pullup resistor and the empty VCC hole on the FTDI header. Both were measuring 3.3V when I tested for voltage across...
  12. D

    Proper wiring for HM Case with Switch.

    LOL....I didn't expect you too, I just wanted to get my thoughts down before calling it a night. Using this schematic, I diagnosed that I am getting 3.3v in each of the orange points, except for those circled in red. The trace that came off was the top right trace in the middle circle. I can...
  13. D

    Proper wiring for HM Case with Switch.

    It was totally an accident, I had flipped it over and after a short time forgot I still had it plugged in. I tested the voltages and everything passes from 12v through 3.3 on the regulator. Any other thoughts?
  14. D

    Proper wiring for HM Case with Switch.

    Good news - I picked up a foot of solid wire 24 gauge cat5 cable at Home Depot for $0.31. Bad news - In trying to replace the wire that is in this step, "6) Wire the bottom leg of the switch to the wire side of the 100K resistor behind the TC jack", I pulled off the trace. Initially, it was...
  15. D

    Proper wiring for HM Case with Switch.

    Thanks Ralph, I think I have some spare Cat5 cable that I can open up and split out. Yes, my soldering skills still need some work, felt like it was a quick touch, but obviously need to make it quicker! I should be able to test the amp/lug tonight. Jas E - I'm using .032 diameter solder.
  16. D

    Proper wiring for HM Case with Switch.

    I finally wired everything up as I planned in the previous thread quoted above. After plugging in the wall wart, the pit probes are either showing "No Pit Probe" both when a TC probe is plugged in and when it is not, or, it is showing a temperature that is steadily going up, sometimes starting...
  17. D

    RDTC boards arrived

    You want the jack with all 3 pins in line for the RDTC board.
  18. D

    RDTC boards arrived

    Ah, ok. I get it now. I think the easiest thing for me to do would be to snip the wire on the resistor and wire each as you stated, leaving both holes in the board untouched. That would work fine, right?
  19. D

    RDTC boards arrived

    On 5/6, I was just referring to the sides that had the resistor flush with the board and then the other side where the wire was all that was going through. Are we still on the same page? https://drive.google.com/file/d/0BzSBmZGY0VqYXzhrVDY0V2xJTkE/view
  20. D

    RDTC boards arrived

    I have a TC HM board with a switch with the RDTC box. So I am crystal clear on the switch wiring, can someone please confirm these steps as I work from top to bottom on the image above: 1) Wire ground from the 12V jack to pin 8 of the Cat5 jack 2) Wire pin 1 of the Cat5 jack to the offset pin...

 

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