Filament Dehydrator Temperature controller - Thermostat

*** WORK IN PROGRESS ***

• 3D Printing Filament Dehydrator Control Module
• This sketch will control the heater element(s) of a standard Food Dehydrator
• to enable drying various 3d printing filament to their suggested dryinh tempertaure and time.
• An Arduino is used to display and capture menu selections through 3 momentary push buttons.
• Pre stored values for targetted temperature will be compared to the inputs from a DS18b20 Dallas digital temperature sensor.
• Results of this comparision will then be used to control the heater element relay via 5v signal.
• ####-WARNING-#### Timer function is ONLY for reference, NO ACTION to the dehydrator will be executed by the module through timer functions.
• The reason for this non-action is to prevent the filament to re-absorb humidity in case of long running time after auto-shutdown of heater element.
• Buzzer / Alarm might be added in the future

BOM:

• Arduino pro-mini: http://s.click.aliexpress.com/e/bggepclK
• OLED mini display (128X32) http://s.click.aliexpress.com/e/JS7tG0g
• DS18B20 Température sensorhttp://s.click.aliexpress.com/e/b8dHx8
• 4.7Kohm resistor (for ds18b20)
• Relay module
• Push Buttons (3)
• 10K Resistors (3)
• AC120 to DC5V converter

Arduino Libraries required:

• https://github.com/adafruit/Adafruit-GFX-Library
• https://github.com/adafruit/Adafruit_SSD1306

Arduino Code: https://github.com/MirageC79/FilamentDryer_Controller