mine too. an hour or two learning to program a $50 temp controller (maybe $100 with multiple ramps and usb with pc based programmer ) is much cheaper than the hours and learning curve to program and to properly interface an arduino that will cost at least $100 with box and interface circuitry. jim fackert On Jun 30, 2014 9:17 AM, "Vicente Alvero Zambrano" < vicente_alvero_14@xxxxxxxxxxx> wrote: > Your opinion is to use the existing PID device? > > > Subject: [SS2S-Main] Re: temperature controller with arduino > > From: waaslandwolf@xxxxxxxxx > > Date: Mon, 30 Jun 2014 14:21:03 +0200 > > To: sugarshot@xxxxxxxxxxxxx > > > > I agree with Peter. Trying to save a mere 180$ by developing a solution > that already exists isn't good use of resources. > > > > > Op 30-jun.-2014 om 00:52 heeft Peter Johansson <rockets4kids@xxxxxxxxx> > het volgende geschreven: > > > > > > On Sun, Jun 29, 2014 at 6:36 PM, Vicente Alvero Zambrano > > > <vicente_alvero_14@xxxxxxxxxxx> wrote: > > > > > >> My idea is to use an old oven heater like the picture. > > >> With respect to the PID controller, maybe it is cheaper to do it > manually, > > >> without writing code. > > > > > > One option to consider -- and an advantage to going with a homebrew > > > solution -- is to simply read a configuration file containing the > > > temperature profile and PID tunings over over the serial port. > > > > > > This way you get the maximal possible control with the minimal > > > hardware cost and minimal software development time. > > > > > > -p. > > > > > >