Automatic Powder Dispenser

thingiverse

The purpose of this device is to deliver specified amounts of drink mix, including hot chocolate, sugar, or powdered flavoring. It includes a choice of three distinct sizes: small, medium, and large. There are three design options available. The first is fully manual; turning the knob releases the powder. The second uses a servo to control the knob and three LED's to signal the amount of powder that will be dispensed. This option features two buttons to control the preferred size: either small, medium, large, or unlimited. Holding the button activates the unlimited feature, allowing powder to be released until the button is released. The third option utilizes an LCD screen to display the preferred size selection, along with the status of the servo motor: either "in progress" or "ready." It also employs two buttons in the same manner as the second option: to select the desired size. The stand and hopper can be easily redesigned and modified based on individual preferences according to the dispenser's dimensions. To get started, simply download the corresponding parts for your preferred model. For the manual model: * Dispenser * Dispenser Hopper * Dispenser Stand * Dispenser Key Without Servo For the LED display model: * Dispenser * Dispenser Hopper * Dispenser Stand * Dispenser Key With Servo * Dispenser Control Panel for LEDs * Powder_Dispenser_LED.ino For the LCD display model: * Dispenser * Dispenser Hopper * Dispenser Stand * Dispenser Key With Servo * Dispenser Control Panel for LCD Screen * Powder_Dispenser_LCD.ino The LED and LCD models rely on an Arduino Uno to control a servo that attaches to the back of the dispenser. The key features two push buttons as well as an LCD screen or three LED's. The program can be easily modified to alter the timing of the servo motor.