[Maker.Moekoe] wanted a single controller board that was usable with different reflow ovens or hotplates. The result is a versatile board based on the ESP32-S2. You can see a video of the board’s assembly in the video below.
The board sports several inputs and outputs including:
- 2x MAX6675 thermocouple sensor input
- 2x Fan output with flyback diodes
- 2x Solid state relay output
- 3x Buttons
- 1x LED
- 1x Buzzer
- 1x Servo motor output
- 0.96 inch OLED display
You could probably find a use for the board for other similar applications, not just ovens.
The video is oddly relaxing, watching parts reflow. It is like watching a 3D printer, no matter how many times we see it, we still find it soothing to watch. You can also see how he integrated the board with a toaster oven.
Overall, the board looks great and the workmanship is also very good. If you’ve never seen anyone set heat-set threaded inserts into a 3D printed piece, be sure to watch around the four minute mark.