Soldering station

[cncmachineguy]

I'm sure there is something I am missing here but,

Still have BIG thermal inertia of iron soldering (about 7-8 degree)...

Do you think you can do better then this? Or need to? Now if its an excersize in learning and just the fun of doing it, well thats a great reason. But I would think the tip temp will cool that much if you just blow on the tip. but to raise it will take full power for a few seconds to get it back, then it will overshoot. Just my HO.

[Archangel]

I'm sure there is something I am missing here but,


Do you think you can do better then this? Or need to? Now if its an exercise in learning and just the fun of doing it, well that's a great reason. But I would think the tip temp will cool that much if you just blow on the tip. but to raise it will take full power for a few seconds to get it back, then it will overshoot. Just my HO.

Just so we are all playing on the same field . . . are we talking degrees C or degrees F ? I am guessing Centigrade so that's more like 13 or 14 Fahrenheit.
Check out Robert's article:
http://itech.fgcu.edu/faculty/zalews...PIDcontrol.pdf

[mister_e]

Sure enough, it's not Kelvin... just sayin

[Archangel]

Sure enough, it's not Kelvin... just sayin

Hey! He (Kelvin) used to work for me . . .

[Jerson]

I can hazard a guess that changing this section of code

     vt=adval * 500      
            vt=div32 1023 
            grup=vt+grup  
            PAUSE 10

to this

vt=adval >> 1
grup=vt+grup
PAUSE 10

might save you a bit of code & ram space. But, I've not checked this, so, you'll beware. Again, if you notice,
I've used an approximation of divide by 2(500/1000) for 500/1023 instead of 1/2.046 I do not think it will matter much if you calibrate
the readings.

[fratello]

Wow ! Great support here ! Thanks to all !!!
In first post You can see : the temperature it's in Celsius degrees. The PID control it's a verry good ideea; sure I will use in future projects !
But...I try to do like Mr. Ioannis :

if w1 < (calibra - 5) then pwm mosfet 255, 300
if w1 < (calibra - 3) then pwm mosfet 155, 250
if w1 < (calibra - 1) then pwm mosfet 100, 200
endif
endif
endif

I think to reduce the "power" of heating by adjusting the pwm factors... It's OK ?!

[Ioannis]

1. On the above code you do not need the 3 endif.

2. The credit is not for me. Maybe Jerson's?

Ioannis