[kreutz]

A few years ago I designed and built a toaster oven controller for SMD reflow for a 100 prototype order. The oven worked so beautifully I kept it and all my prototypes from then on have been soldered on that oven.

It features local and RS232 remote control and programming, profile setup and storage, manual control, (adjustable) PID temperature control with a modified Bresenham algorithm based power control (for more efficient heating). RS-232 optional PC data adquisition (for oven profile comparison and graphic oven temperature vs profile display) in real time, etc.

Now I am going to retrofit a few more ovens for production using the same design. So decided to offer a DIY kit with the basic components including the programmed micro-controller and PCB, the KIT will be sold at $39.95. The rest of the components including optional local LCD display and a 4x4 matrix Keyboard, could be locally obtained by the user. I will also provide complete schematics and Step by Step instructions.

Here are some photos of my SMD work.