engineertype / controleo2 Goto Github PK

Firmware 1.6, reflow temp is 215C, bake temp is 55C @ 5 minutes.

Power up controller, start bake cycle, completes, display says "Cool - open door" and plays tune, but door does not actually open. Door is opening on reflow cycles, so there's no question the servo works.

Hi,

I've bought the ControlLeo2 (but don't know your email), so I chose to use github. I spent quite some energy trying to find the best convection oven; ie. quartz elements, small (but not tiny), with fan, well built

I'd recommend you add it to the list of recommended ovens: Oster TSSTTVF816

Its internal construction is solid and it was relatively easy to fit 4 SSRs. With the boost element it has 1650W, but the first two learning runs ended because of the "too fast" soak, I think it would work perfectly without the boost element.

I'm attaching a chart of my testing run and few pics from the build.

https://www.dropbox.com/sh/k70w67po2kize26/AAAVaG-BAQXSAaKS52i60Kjma?dl=0

Hi,

It seems your website is offline. I was interested in purchasing a controleo2.

Thanks!

When baking, have a countdown timer on the display would be handy.

A few months back I bought reflow kit which came with a MG996R servo. I also used the recommended oven. Everything was working fine but the controller would often still reset with the supplied 220uF cap installed. I double checked the capacitor polarity and connections and buzzed them out with my meter to make sure my soldering was good. Adding an additional 1000uF cap across the screw terminals of the 5v input solved the problem. I thought you should know. This might also be helpful to others.

Sooo... Firmware 1.7, 55C bake cycle for 5 minutes. Door now opens, but never closes.

Howdy.

You should use Flash memory for all Serial.prints that only send string constants. Like so ...

Replace ...

Serial.print("Last profile loading from eeprom: ");

... with ...

Serial.print(F("Last profile loading from eeprom: "));

... and similar for the MoveToNextPhase(...) function, like so ....

MoveToNextPhase(F("Max Duration Exceeded"), timeInPhase);

... and a slight change to the function declaration itself ...

void MoveToNextPhase(const __FlashStringHelper *reason, int timeInPhase)
{
  Serial.print("**");
  Serial.print(reason);
  ...

... then you will get back 500+ bytes of wasted SRAM, as well lose the Arduino IDE warning about SRAM resources being low and potential instability, yadee yada.

Then, all that extra RAM could go towards neat new features you add with the 50%+ code space still remaining. Coffee warmer? :-P

I would have posted a pull request for the above, but I've made a whole bunch of other experimental changes and it's a bit of a mess right now. Anyway, hope it helps.

Having fun with my new oven! Thanks for the good works! :-)

Gruvin
Wellington, New Zealand

Hi, I built my own hardware for the Controleo2 using Brian Barrett's design. My boards do get soldered well, except that the solder melts at about 180-183 deg C (I'm using this solder paste) and in the final boards the flux is charred and the board silkscreen is all yellow. Any idea why this is happening? The reflow profile after exiting the learning mode is attached here.

reflow profile (XLS and CSV).zip

Hello.
Great Controller. I have made one for myself and after fine tuning it, it's working great.
Have you thought in implementing PID algorithm to control heater element?

Is there any reason to avoid this?
Thanks.

I feel like I must be missing something that's right in front of my face, so I apologize for the question I'm about to ask:

I'm going from using regular solder paste to some low temperature paste for a project with sensitive components. This is my new paste:
http://www.chipquik.com/datasheets/SMDLTLFP10.pdf
Where do I adjust the temperatures in the ReflowWizard sketch to match the solder paste that I'll be using? I can't seem to find the values in the sketch.

hi, when testing manually or reflowing. when my boost element start (on D6) the second led light is set and not the third one. normal or not?

thank
seb

it use