On 09.11.13 11:46, Jean-Michel Pouré - GOOZE wrote: > Le vendredi 08 novembre 2013 à 23:00 +0000, andy pugh a écrit : > > It might be the case that the Arduino Mega (16 analogue inputs) is a > > better choice for the oven controller.
While I haven't used any of the PID algorithms at: http://playground.arduino.cc/Code/PIDLibrary they've possibly had more exposure than some of the others that a quick google throws up. (I'd certainly read their code before considering hacking my own.) > The seller advises me to place heaters along the train and capture 3 > termal zones. In his opinion, it would be better to capture the > temperature inside oven instead of heater temperature. He's right. There would be little point in measuring the heater temperatures when what you need to know is the temperature around the units going through the reflow oven. > I will wait to receive the oven and make photos. This oven NEEDS to be > upgraded according to seller. Fortunately the temperature in a reflow oven needn't be regulated to within one degree, AIUI, because the A/D converter on an AVR (Arduino) or any other 8 bit MCU that I've come across is only 8 bits, minus offset and gain errors, unless you take the trouble to correct for them. That is well worth doing. Erik -- For those with savings and fixed incomes, deflation is wonderful, but for those with debt, it is catastrophic since the value of the dollar repaid is greater than the dollar borrowed. ... borrowers are ascendant and central banks are working for them, not savers. In fact, savers are being plundered with super low interest in the name of promoting aggregate demand and maintaining inflation. - http://www.abc.net.au/news/2013-11-06/kohler-prices-want-to-fall-but-borrowers-wont-let-them/5072388 ------------------------------------------------------------------------------ November Webinars for C, C++, Fortran Developers Accelerate application performance with scalable programming models. Explore techniques for threading, error checking, porting, and tuning. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60136231&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
