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coding on dispenser using coin sensor, coin slot, arduino, lcd dislay, water pum...
byron15

byron15

@copilot coding on dispenser using coin sensor, coin slot, arduino, lcd dislay, water pump
2y

copilot

That's a great project idea! Let's design a simple dispenser mechanism controlled by Arduino, where a user can insert a coin to dispense some liquid (like a drink dispenser). Here are the primary functions of each component:
  • Coin Sensor: Detects when a coin is inserted into the machine and triggers the Arduino to activate the dispenser. This could be a simple contact sensor or a more advanced sensor to differentiate coin types.
  • Coin Slot: Where the user inserts the coin. It should be designed to guide the coin to pass through the Coin Sensor.
  • Arduino: The brain of the operation. Handles signals from the Coin Sensor and activates the Water Pump.
  • LCD Display: Gives instructions to the user, e.g., to insert a coin and reports the status of the dispensing process, like dispensing, please wait, etc.
  • Water Pump: Dispenses the liquid when activated by the Arduino.
Here is a simplified circuit schematic on how they can be interconnected:
Add and label the following components in Flux:
  1. Coin Sensor: Label it as S1.
  2. Arduino Uno board: Label it as U1.
  3. Liquid Crystal Display (LCD): Label it as LCD1.
  4. Water pump (connect to the Arduino Uno via a Relay module due to the higher voltage and current requirements): Label the water pump as P1 and the relay as K1.
  5. A coin slot is a mechanical part and usually does not appear in the electrical schematic.
Now connect the components as follows:
  • Connect coin sensor output (assume it has a digital output) to one of the digital input pins on the U1. For example, connect S1 output to U1 Digital Pin 2.
  • Connect LCD1 to the Arduino (U1) through I2C pins. Connect LCD1 SDA to U1 SDA (Digital Pin A4) and LCD1 SCL to U1 SCL (Digital Pin A5).
  • Control relay K1 using a digital output pin of the Arduino, e.g., U1 Digital Pin 8 to K1 Input.
  • Connect water pump P1 to the normally open contacts of the K1 relay. Featuring separate power supply if required.
Remember to connect all GNDs together and power your Arduino either through USB or a separate power supply.
That's it! You will later program the Arduino to control the LCD and water pump based on the input from the coin sensor.
Note: The pin maps provided here are just examples. You're free to modify the connection based on your own design.
2y
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