MEGR 3171: Restaurant Order Notifier

Ever worked at a restaurant and wanted to know when the order was ready for you to serve to the customer. We've got the thing just for you.

BeginnerFull instructions provided136

Things used in this project

Hardware components

Particle Argon

Breadboard (generic)

LED (generic)

Jumper wires (generic)

Microphone Sound Detection Sensor

Seeed Studio Grove - Barometer (High-Accuracy)

Software apps and online services

Particle Build Web IDE

ThingSpeak API

Story

During this fall In our MEGR 3171 course, we were tasked with an assignment to design and implement an IoT project to provide a service. Ahmed and I (Mohammad) then started thinking and asking ourselves how can our IoT technology make life easier. We immediately thought back to our days when we worked at restaurants and remembered how hectic it was to be a waiter and having to worry about when the food in the back of the kitchen was ready to be taken out to the customer and also how hard it was for the chef/cook to try and notify the waiters that the food is ready before it started stacking up. We came up with an idea where we would create a device that can be used in all restaurants especially where waiters/waitresses and chiefs/cooks are involved. The idea is that the cook will have the clap device next to them in the kitchen and clap whenever an order is ready to be taken out to the customer. The clap will send a signal to the device outside where the hosts and waiters are, from there the front desk/host will receive a red light notification on the device next to them that will will let them know that the order is ready to be taken from the back of the kitchen and they will then notify the waiters that the order is ready to be served out to the customer. People would want this device because it comes with a sound detector feature which makes it different from other devices. This device can also help the business keep track of how many orders they've had that current day, as it records each clap as an order. Since there will be lots of noise in the restaurant and we don't want the device to pick up any loud noise as a clap and mislead the workers we have made the noise sensitivity for the mic sensor less sensitive and you have to literally clap right next to the device in order for it to register. We did this because there is usually other noise going on around in the kitchen of restaurants and we want the device to be 100% accurate and not pick up other noises and register them as orders or accidentally lead a waiter to the back of the kitchen thinking an orders ready. This technology also comes with a button that can manually be used to notify the back staff that a big order has been placed, so that they are prepared. People would want this in their place of work because it takes a lot of stress away from the workers and can make the business work more smoothly as everyone is staying in touch together by using this device. Our newly IoT skills are allowing us to bring this solution alive by using different codes and sensors to communicate back and forth with two argon devices. We have used the knowledge and skills learned this semester in our MEGR 3171 course to make this happen.

This video shows a small demonstration of our device and how it is used and what it can be used for.

1 / 2 • Figure 2: Button Notifier

Figure 1 shows the sound detector sensor connected to the first argon device in configuration with our second argon device.

Figure 2 displays the grove button connected to the second argon device.

Live Chart: Number of Orders per Day

The live chart above the number of orders on the specific date which is used to track how many orders went out that day.

Code

 const int led = D7; // sets led as pin D7 and is not changed throughout the process sound pin are not changed throughout the process
 const int buttonpin = A2; // sets sound detector as pin Analog2 is changed throughout the process
 const int threshold = 250; // choose any value this number
 int Numberoforders=0; // creates a value for the number of orders
 


void setup() {
    Serial.begin(9600);
    pinMode(led, OUTPUT); // Configure pin for output
    digitalWrite(led, LOW); // creates the starting value for D7
    pinMode(buttonpin, INPUT); // Configure pin for input
    Particle.subscribe("Clap Notifier", anything ,"e00fce68b7279452b67c3045"); // communicates with other argon device
    
}
void anything(const char *event, const char *data)
{
    digitalWrite(led, HIGH); // Turns the led on when output is sent from the other device's sensor 
    delay(1000); // waits 1 second
    digitalWrite(led, LOW); // Turns the led off 
}
    
void loop() {
    int buttonsens=analogRead(buttonpin); // read analog data from sensor
    if (buttonsens>=threshold) {
        digitalWrite(led, HIGH); // turn led on
        Particle.publish("Clap Notifier", "Big order coming your way", PUBLIC);// creates an event called Clap Notifier and sends the message "order is taken"
        delay(1000); // waits 1 second
        
}
if (buttonsens>=threshold) {
    digitalWrite(led, LOW); // turn led off
    
    }
    
}

const int led = D7; // sets led as pin D7 and is not changed throughout the process sound pin are not changed throughout the process
 const int soundpin = A2; // sets sound detector as pin Analog2 is changed throughout the process
 const int threshold = 250; // sets threshold for sound sensorvoid setup()
 int Numberoforders=0;

void setup() {
    Serial.begin(9600);
    pinMode(led, OUTPUT); // Configure pin for output
    digitalWrite(led, LOW); // creates the starting value for D7
    pinMode(soundpin, INPUT); // Configure pin for input
    Particle.subscribe("Clap Notifier", anything ,"e00fce68da963e833e516d1f"); // communicates with other argon device

}
void anything(const char *event, const char *data)
{
    digitalWrite(led, HIGH); // Turns the led on when output is sent from the other device's sensor 
    delay(1000); // waits 1 second
    digitalWrite(led, LOW);  // Turns the led off
}
void loop() {
    int soundsens=analogRead(soundpin); // read analog data from sensor
    if (soundsens>=threshold) {
        digitalWrite(led, HIGH); // turn led on
        Particle.publish("Clap Notifier", "Order is ready", PUBLIC); // creates an event called Clap Notifier and sends the message "order is not ready"
        delay(1000); // waits 1 second
        Numberoforders = Numberoforders + 1;
        String data = String(Numberoforders);
        Particle.publish("counter", data, PRIVATE); // gathers data for the graph
        delay(500); // waits 1 second

}

if (soundsens>=threshold) {
    digitalWrite(led, LOW); // turn led off
    Particle.publish("Clap Notifier", "Order is not ready", PUBLIC); // creates an event called Clap Notifier and sends the message "order is not ready"

}
}

Credits

Mohammad Mohamedtaha

1 project • 0 followers

Contact

MEGR 3171: Restaurant Order Notifier