Autoshot | MEGR 3171 IOT Project | Group 28

Sit back and relax while the Autoshot pours the perfect shot with the press of a button.

BeginnerFull instructions provided258

Autoshot | MEGR 3171 IOT Project | Group 28

Things used in this project

Hardware components

Particle Argon

Jumper wires (generic)

Breadboard (generic)

4 AA Batter Case Holder

Food Grade Hose

DC 12 V Mini Water Pump

USB-A to Micro-USB Cable

Software apps and online services

Particle Build Web IDE

ControlEverything.com Mobicle

Google Sheets

IFTTT Maker service

Hand tools and fabrication machines

Hot glue gun (generic)

Story

Summary

For our IOT project we decided to build an automatic shot dispenser with the use of two particle argons. As long as the Argons are connected to WIFI, the drink can be dispensed with the press of a button on your phone even if you're not next to the system.

Howdoes it work?

The first particle argon was the publish device and it was responsible for initiaing the communication process between the two argons. We used Mobicle.io to make a remote control that could turn the D7 pin on the argon device on and off. The D7 pin on the publish argon was connected to the D0 pin via jumper wire in order for the argon to read the digital write signal from the D7 pin. Once the digital write signal is read by the D0 pin an event gets published to the cloud where the live data can be found.

The second particle argon was responsible for subscribing to that event that was published by the publishing argon, sending a signal to the D7 pin to turn off. This then sent a signal to the relay which controls the DC water pump to switch ON and pump liquid for 0.7 seconds. After running for 0.7 seconds the relay then switches off, turning the water pump OFF.

Project Setup

Project Setup

As seen in the picture above both of the particle argons were powered by directly connecting the usb cords to a laptop. The DC 12 V pump was powered by two AA battery case holders each holding 4 AA batteries resulting in a 12V power source. The motor was installed by drilling a fitted hole into an empty Gatorade bottle and using a hot glue gun to seal the hole to prevent any liquid from leaking from the bottle. We then used zip-ties to elevate the food grade hose for the Autoshot to dispense directly into the shot glass.

Particle Argon Connections

Relay Schematic

Autoshot Video

Code

// *                          |          +-----+          |
 //*                          | [ ] RST               __  |
 //*                          | [ ] 3V3              |    |
 //*                          | [ ] MD               |__  |
 //*                          | [ ] GND                   |
 //*                          | [ ] A0            LI+ [ ] |
 //*                          | [ ] A1            EN  [ ] |
 //*                          | [ ] A2           VUSB [ ] |
 //*                          | [ ] A3  [M]  [Re]  D8 [ ] |
 //*                          | [ ] A4             D7 [*] |<-LED is jumpered to pin D0 (digitalWrite)
 //*                          | [ ] A5  +-------+  D6 [ ] |
 //*                          | [ ] D13 |   *   |  D5 [ ] |
 //*                          | [ ] D12 | Argon |  D4 [ ] |
 //*                          | [ ] D11 |       |  D3 [ ] |
 //*                          | [ ] D10 +-------+  D2 [ ] |
 //*                          | [ ] D9             D1 [ ] |
 //*                          | [ ] NC             D0 [*] |<-This pin reads signal from the D7 pin (digitalRead)
 //*                          |                           |
 //*                           \    []         [______]  /
 //*                            \_______________________/
 //*
//The D7 pin is jumpered to the D0 pin.  





int led = D7;
int lightsensor = D0;
int val = 1;

void setup() 
{
pinMode(led, OUTPUT);
pinMode(lightsensor, INPUT_PULLDOWN);


digitalWrite(led, HIGH);
digitalWrite(led, LOW);

Particle.function("togglelights", togglelights);

}

int togglelights(String command){
    if(command == "On" || command == "on" || command == "ON"){
        digitalWrite(led,LOW);
        return 1;
    }
 else if (command=="off") {
        digitalWrite(led,HIGH);
    
        return 0;
}
else {
    return -1;
}
}

void loop() {
    
    val = digitalRead(lightsensor);
    digitalWrite(led, val);

 
    if(digitalRead(lightsensor) == 1){
        Particle.publish("Patricks_Argon","flowin",60);
    }
   else 
   {delay(3000);
   }
}

// *                               |          +-----+          |
 //*                               | [ ] RST               __  |
 //*                               | [ ] 3V3              |    |
 //*                               | [ ] MD               |__  |
 //* GND connect to GND on relay-->| [*] GND                   |
 //*                               | [ ] A0            LI+ [ ] |
 //*                               | [ ] A1            EN  [ ] |
 //*                               | [ ] A2           VUSB [*] |<-- connects to vcc on relay
 //*                               | [ ] A3  [M]  [Re]  D8 [ ] |
 //*                               | [ ] A4             D7 [*] |<-- connects to IN1 on relay
 //*                               | [ ] A5  +-------+  D6 [ ] |
 //*                               | [ ] D13 |   *   |  D5 [ ] |
 //*                               | [ ] D12 | Argon |  D4 [ ] |
 //*                               | [ ] D11 |       |  D3 [ ] |
 //*                               | [ ] D10 +-------+  D2 [ ] |
 //*                               | [ ] D9             D1 [ ] |
 //*                               | [ ] NC             D0 [ ] |
 //*                               |                           |
 //*                                \    []         [______]  /
 //*                                 \_______________________/
 //*

int led = D7;


void setup() {

    pinMode(led, OUTPUT);
    digitalWrite(led, HIGH);

    Particle.subscribe("Patricks_Argon", pumpOn);

}

void loop (){
    
}

void pumpOn(const char *event, const char *data)
{

digitalWrite(led, LOW);

  // We'll leave it on for 0.7 seconds...
  delay(700);


  // Then we'll turn it off...
  digitalWrite(led, HIGH);
  


}

Credits

Lucas Popan

1 project • 0 followers

Patrick Lichtenwalner

1 project • 0 followers

Autoshot | MEGR 3171 IOT Project | Group 28