DJ, may I ask a couple of questions about your schematic? (May I ask them even if I reveal all sorts of ignorance on my part? :) I'm taking VSX-S3 near the upper right corner as a power supply that converts the line voltage to 5V. Is this some sort of pre-packaged module? Am I right in thinking that you are detecting the 0 voltage crossover in the AC using U4, and this drives an interrupt? What is the purpose of J1 -- for expansion, reprogramming, or ?? Finally, I think the MAX6675 is the interface to the thermocouple. Does this IC send the temperature of the probe over a serial interface? Many thanks for taking pity on this newbie! Andy > It's just an MCU with an SPI-based thermocouple chip, LCD, a variable > resistor, and a power module: > > http://www.delorie.com/electronics/laminator/laminator.pdf >
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Re: laminator, vacuum, 5-mil spirals - report
2009-03-27 by awakephd