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Solder Reflow Oven Build

joe

I was watching the episode of Ben Heck's show here on element14 where he build a solder reflow oven out of a toaster oven and I thought this might make a nice project.  If you'd like to check out Ben's build, you can check out the link below:

Episode 116: Ben's Home-Brew Solder Reflow Oven 2.0 Episode

 

I have started work on this project and will post additional details if I make any progress.  To get going, I have chosen the MSP430G2955 to be the controller and will be interfacing it with the EA DOGS102-6 102x64 dot matrix display. 

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  • I have added in some fault detection code.  This code will first check to see if any fault exits. If none exist, the program will proceed on to the previously discussed temperature measurement. If one does exist, the program checks which fault(s) are currently being reported by the MAX31855:

     

            /* Check Fault condition bit D16 (BIT0 of temp[1]). If 1, a fault exists
             and don't proceed with the temperature measurement. Instead determine which fault(s)
             exist and display the result to the screen.
             OC = Open Circuit
             SCG = Short Circuited to Ground
             SCV = Short Circuited to Vcc
             It is possible to have more than one fault at the same time.
             */
            if ( (temp[1] & 0x01) == 1){

             switch (temp[3] & 0x07) {
             case 0x01:
                    sprintf(buffer, "OC Fault");
              break;
             case 0x02:
                    sprintf(buffer, "SCG Fault");
              break;
             case 0x03:
                    sprintf(buffer, "OC/SCG Fault");
              break;
             case 0x04:
                    sprintf(buffer, "SCV Fault");
              break;
             case 0x05:
                    sprintf(buffer, "OC/SCV Fault");
              break;
             default:
                    sprintf(buffer, "Other Fault");
              break;

             }
                Dogs102x6_stringDraw(1, 0, buffer, DOGS102x6_DRAW_NORMAL);
            }
            else{

                 //  Continue to temperature measurement

       }

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  • I have added in some fault detection code.  This code will first check to see if any fault exits. If none exist, the program will proceed on to the previously discussed temperature measurement. If one does exist, the program checks which fault(s) are currently being reported by the MAX31855:

     

            /* Check Fault condition bit D16 (BIT0 of temp[1]). If 1, a fault exists
             and don't proceed with the temperature measurement. Instead determine which fault(s)
             exist and display the result to the screen.
             OC = Open Circuit
             SCG = Short Circuited to Ground
             SCV = Short Circuited to Vcc
             It is possible to have more than one fault at the same time.
             */
            if ( (temp[1] & 0x01) == 1){

             switch (temp[3] & 0x07) {
             case 0x01:
                    sprintf(buffer, "OC Fault");
              break;
             case 0x02:
                    sprintf(buffer, "SCG Fault");
              break;
             case 0x03:
                    sprintf(buffer, "OC/SCG Fault");
              break;
             case 0x04:
                    sprintf(buffer, "SCV Fault");
              break;
             case 0x05:
                    sprintf(buffer, "OC/SCV Fault");
              break;
             default:
                    sprintf(buffer, "Other Fault");
              break;

             }
                Dogs102x6_stringDraw(1, 0, buffer, DOGS102x6_DRAW_NORMAL);
            }
            else{

                 //  Continue to temperature measurement

       }

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