Filament Dehydrator Temperature controller - Thermostat

thingiverse

*** 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