| + Operating Frequency | 38 kHz |
| + Detection Range | 1-5 cm |
| + Operating Frequency | 38 kHz |
| + Detection Range | 1-5 cm |
+ Arduino/ESP32 compatible
| + Flash Memory | 32 KB/4 MB |
| + SRAM | 2 KB/520 KB |
| + Flow Rate | 1-5 mL/min |
| + Maximum Pressure | 10 psi |
| + Capacity | 500 mL |
| + Material | Food-grade plastic |
+ USB-powered adapter (5V, 1A) or battery holder (4x AA batteries)
Assembly and Installation
The DIY Automatic Sanitizer Dispenser Kit comes with a detailed assembly guide and instructions for installing the components. Users can assemble the kit using the provided hardware and software resources.
Software and Programming
The kit includes a sample code and programming guide for the microcontroller, allowing users to customize the dispenser's behavior and adjust the dispensing volume according to their needs.
Certifications and Compliance
The DIY Automatic Sanitizer Dispenser Kit complies with relevant safety and regulatory standards, including CE, RoHS, and FCC certifications.
Warranty and Support
The kit comes with a limited warranty and dedicated customer support, providing users with assistance and resources for troubleshooting and optimization.
DIY Automatic Sanitizer Dispenser Kit DocumentationOverviewThe DIY Automatic Sanitizer Dispenser Kit is a innovative IoT component designed to promote good hygiene practices by providing a convenient and touchless way to dispense hand sanitizer. This kit includes a servo-controlled dispenser, an ultrasonic sensor, and a microcontroller (Arduino or compatible). The kit can be easily integrated into various applications, such as smart homes, public facilities, or commercial buildings.Hardware ComponentsServo motor (for dispenser control)
Ultrasonic sensor (HC-SR04)
Microcontroller (Arduino or compatible)
Dispenser mechanism ( custom-designed or 3D printed)
Power supply (5V, 1A)Software ComponentsArduino IDE (for programming the microcontroller)
Servo library (for controlling the servo motor)
Ultrasonic sensor library (for distance measurement)Connecting the Hardware1. Connect the servo motor to digital pin 9 of the microcontroller.
2. Connect the ultrasonic sensor (VCC to 5V, GND to GND, Trig to digital pin 2, Echo to digital pin 3) of the microcontroller.
3. Connect the power supply to the microcontroller and servo motor.Code Examples### Example 1: Basic Automatic Sanitizer Dispenser (Arduino Sketch)
```c++
#include <Servo.h>#define TRIG_PIN 2
#define ECHO_PIN 3
#define SERVO_PIN 9Servo dispenserServo;void setup() {
dispenserServo.attach(SERVO_PIN);
pinMode(TRIG_PIN, OUTPUT);
pinMode(ECHO_PIN, INPUT);
}void loop() {
int distance = measureDistance();
if (distance < 10) { // adjust distance threshold as needed
dispenserServo.write(0); // rotate dispenser to dispense sanitizer
delay(500); // adjust delay time as needed
dispenserServo.write(90); // rotate dispenser back to original position
}
delay(50);
}int measureDistance() {
digitalWrite(TRIG_PIN, LOW);
delayMicroseconds(2);
digitalWrite(TRIG_PIN, HIGH);
delayMicroseconds(10);
digitalWrite(TRIG_PIN, LOW);
int duration = pulseIn(ECHO_PIN, HIGH);
int distance = duration 0.034 / 2;
return distance;
}
```
This example demonstrates a basic automatic sanitizer dispenser that uses the ultrasonic sensor to detect the user's hand and dispenses sanitizer when the hand is within a certain distance.### Example 2: IoT-Enabled Automatic Sanitizer Dispenser with Wi-Fi Connectivity (Arduino Sketch)
```c++
#include <WiFi.h>
#include <Servo.h>#define TRIG_PIN 2
#define ECHO_PIN 3
#define SERVO_PIN 9
#define WIFI_SSID "your_wifi_ssid"
#define WIFI_PASSWORD "your_wifi_password"Servo dispenserServo;
WiFiClient wifiClient;void setup() {
dispenserServo.attach(SERVO_PIN);
pinMode(TRIG_PIN, OUTPUT);
pinMode(ECHO_PIN, INPUT);
WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi...");
}
Serial.println("Connected to WiFi");
Serial.println("Starting dispenser...");
}void loop() {
int distance = measureDistance();
if (distance < 10) { // adjust distance threshold as needed
dispenserServo.write(0); // rotate dispenser to dispense sanitizer
delay(500); // adjust delay time as needed
dispenserServo.write(90); // rotate dispenser back to original position
sendNotification("Sanitizer dispensed!");
}
delay(50);
}int measureDistance() {
// same implementation as in Example 1
}void sendNotification(String message) {
// send notification to a cloud-based service or a mobile app
// using HTTP or MQTT protocols
// implementation not shown for brevity
}
```
This example demonstrates an IoT-enabled automatic sanitizer dispenser that uses Wi-Fi connectivity to send notifications to a cloud-based service or a mobile app when the sanitizer is dispensed.Note: These examples are meant to provide a starting point for developers and may require modifications to suit specific use cases. Additionally, ensure compliance with relevant safety guidelines and regulations when integrating this kit into real-world applications.