ESP32 Arduino Reflow Oven Controller download

This reflow oven controller was built to control a modified toaster oven for the purpose of doing reflow soldering of printed circuit boards. The controller was designed and built around an ESP32-DevKitC development board with ancillary electronics added to complete the controller. The schematic can be found in <files/hardware>.

The code for the controller was modified extensively from existing Arduino sketches for reflow oven controllers and is PID-algorithm based. The firmware ("sketch") can be found in <Files/firmware>.

The Serial Profile Plotter For Reflow Ovens utility was written to operate in conjunction with this controller. You can download it here:

https://sourceforge.net/projects/serial-profile-plotter-reflow/

Features

ESP32-DevKit-C Arduino based reflow oven controller
I2C LCD display with support code for 4 line x 20 characters display
USB-Serial board interface to PC using serial Rx/Tx data from/to ESP32
MAX6675 thermocouple interface board with SPI connection to ESP32
Single Start / Stop button for initializing / halting reflow process
Button to select between lead-free and leaded solder profiles
EN and BOOT buttons brought out from ESP32 for programming the device
Output for driving Solid State Relay (SSR)
Output for driving a small 8 ohm speaker which is used for audible warnings
Startup sounds and alarm sounds for start of different phases of reflow process
SPDT switch to select between stand-alone (oven) mode and ESP32 programming mode
The Serial Profile Plotter For Reflow Ovens utility was written to operate in conjunction with this controller

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