Filament Dryer Thermostat using DS18B20 Temperature sensor

thingiverse

First, I'd like to extend a huge thank you to MirageC for their fantastic design. I was inspired by their work and decided to remix it to suit my specific needs. This project has been incredibly helpful in preheating our 3D printer filaments, which has made a significant difference in the quality of our prints. The main goal was to remove excess moisture from the filaments, and this design has achieved just that. At the heart of this circuit is an Arduino board, where I wrote the code using the Arduino programming language. To monitor temperature levels, I used a DS18B20 temp sensor, and a relay to switch the heater on or off as needed. The code was written with predefined values for different types of filaments available in the market, along with corresponding heating times. Users can navigate through these options using three buttons, making it easy to select the right settings for their specific needs. I designed the PCB using Target 3001, and I've attached editable files for anyone who wants to modify or use this design themselves. Here's a list of components required: 1. Atmega328 2. 16x2 Character LCD display 3. 16 MHz Crystal 4. 4.7 K SMD resistor (1206 package) 5. 0 Ohm resistor 6. 220 uf Capacitor (SMD) 7. 78M05 SMD Voltage regulator 8. 0.1 uf SMD capacitor 9. Three Pushbutton switches 10. DS18B20 Sensor 11. 10 K SMD resistor (1206 package) 12. 12V, 3W power supply module (AC to DC converter) 13. One Relay 14. NPN 547 Transistor 15. Five millimeter LED 16. IN4007 Diode (1 No DIP & SMD) 17. 1 K SMD resistor (1206 package) For more information, check out this video: https://www.youtube.com/watch?v=WwNuwMe8dHg&feature=youtu.be