[hpsdr] Some more ideas on reflow oven

[Darrell Harmon]

On Sat, Aug 19, 2006 at 07:30:41PM -0700, peter at gehughes.us wrote:
> ***** High Performance Software Defined Radio Discussion List *****
> 
> Just ran across this,,maybe it can still be used 
> 
> 
> http://www.circuitcellar.com/library/print/0704/Lacoste_168/index.htm
> 
> Peter
> 
> 
> 
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You may want to consider the MAX6675 SPI thermocouple interface. It is
much cheaper thatn the part in the article and simpler to use. The 
distributors don't stock it, but Maxim will send samples. I use it in
my reflow controller. It uses so little power it can run off of a 
logic line set high on my laptop's parallel port. I use another line
to control a relay for the ovens heater. The oven is a cheap sunbeam
with quartz elements. I think I paid $20 for it.

The very simple schematic and code is at 
http://dlharmon.com/solder/toaster.tar.gz

I have successfully soldered 4 BGA parts with this setup including
one 0.8mm pitch lead free one.

-- 
Darrell Harmon
http://dlharmon.com

 1156044000.0