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Sandisp! Sanitizer Dispenser With Voice Notifications

Made by vinayyn / Health / Home Automation

About the project

Touchless hand sanitizer dispenser with voice notifications. voice notification available in 100+ languages.

Project info

Difficulty: Moderate

Platforms: Arduino, Atmel

Estimated time: 4 hours

License: GNU General Public License, version 3 or later (GPL3+)

Items used in this project

Hardware components

	water pipe 1/2 inch	x 1
	Water pipe 12 mm	x 1
	DC DIAPHRAGM WATER PUMP	x 1
	bc857 tansistor P-N-P Transistor	x 1
	bc847 transistor N-P-N SMD Transistor	x 1
	Resistors SMD 1206 package	x 7
	1 uf tantalum capacitor	x 1
	10 uf tantalum capacitor	x 1
	Capacitor 470 µF	x 1
	db 107 bridge rectifier	x 1
	Generic PCB	x 1
	dc power connector	x 1
	12 volt 1 Ah DC adapter	x 1
	Micro SD Card Shield	x 1
	TDA 2030A audio amplifier	x 1
	Texas Instruments LM 567 Using it for IR proximity detection.	x 1
	ARDUINO NANO V3 Main microcontroller for the system	x 1
	Full-Bridge Motor Driver B/O - L298N	x 1
	INFRARED DIODE	x 1
	PHOTO DIODE TRANS.	x 1
	Micro SD Card with Card Reader-32GB(Class 10) 8 GB IS ENOUGH FOR THE SYSTEM BUT I AM USING 16 GB WHICH IS BOUGHT RECENTLY	x 1
	Bi-color LED T 1 3/4 bi-color (red&green) LED	x 1
	Speaker - 0.5W (8 Ohm)	x 1

View all

Software apps and online services

	hacksaw
	Wire Stripper & Cutter, 26-14 AWG Solid & Stranded Wires
	Solder Wire, Lead Free
	audio.online-convert.com For Converting The Audio File Parameters.
	TEXT TO SPEECH APP(TTS) TTS App For Generating Text To Audio Wav files Generating.
	Arduino IDE ARDUINO IDE IS FOR CODING

Hand tools and fabrication machines

Soldering iron (generic)

x 1

Story

Sandisp! is an automatic sanitizer dispenser with voice notifications based on Arduino nano and infrared proximity detection.

Once proximity is detected by the system, You will hear the voice notification from the device, it tells you what to do next. And finally dispenses the alcohol-based sanitizer.

Features

Voice notification can be created in 100+languages.
High sensitive proximity detection up to 1 meter.
Lm567 Based PWM based proximity detection works in bright sunlight.
Open-source: source code and Hardware design files are available for download.

Schematics, diagrams and documents

outer view

Code

SOURCE CODE

TMRpcm Library needed to compile the code

#include "SD.h" //Lib to read SD card
#include "TMRpcm.h" //Lib to play auido
#include "SPI.h" //SPI lib for SD card
#define SD_ChipSelectPin 4 //Chip select is pin number 4
TMRpcm music; //Lib object is named "music"
const int IR_Pin = 2;
int LED = 7;
int IR_PinState = 0;
int song_number = 0;
int st = 0;
boolean play_pause;
int Dispenser = 6;
unsigned long startMillis = 0;
const long interval1 = 15000;//for gave instruction when hand proximity detected
const long interval2 = 2000;//sanitizer pump motor on period
const long interval3 = 5000;//delay time to initialize sd card after the power ON

void setup() {
  pinMode(IR_Pin, INPUT);
  pinMode(Dispenser, OUTPUT);
  pinMode(LED, OUTPUT);
  music.speakerPin = 9; //Auido out on pin 9
  Serial.begin(9600); //Serial Com for debugging
  music.setVolume(5);    //   0 to 7. Set volume level
  music.quality(1);        //  Set 1 for 2x oversampling Set 0 for normal
  startMillis = millis();
  while ((millis() - startMillis) <= interval3) {
  }
  if (!SD.begin(SD_ChipSelectPin)) {
    Serial.println("SD fail");
    return;
  }
}

void loop() {

  IR_PinState = digitalRead(IR_Pin);
  if (IR_PinState  == HIGH && st == 0)
  {
    digitalWrite(LED, HIGH);
    Serial.println("MOTION DETECTED");
    music.play("DISP.wav");
    startMillis = millis();
    while ((millis() - startMillis) <= interval1) {
    }
    digitalWrite(LED, LOW);
    analogWrite(Dispenser, 200);//pump ON
    st = 1;
    startMillis = millis();
    while ((millis() - startMillis) <= interval2) {
    }
    analogWrite(Dispenser, 0);//pump off
    st = 0;
  }
}

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Sandisp! Sanitizer Dispenser With Voice Notifications

About the project

Project info