Design with Human Presence Sensor in Cirkit DesignerThe Grove - Human Presence Sensor (AK9753) is a sophisticated device designed to detect the presence of a human in a specific area. Utilizing advanced infrared technology, it senses body heat or motion, making it ideal for a variety of applications. This sensor is commonly used in security systems, smart home automation, energy-saving systems, and interactive installations.
This is a multi-functional sensor and communication circuit built around an Arduino UNO. It is designed to collect environmental and health-related data, process and respond to voice commands, and communicate wirelessly. Output feedback is provided through LEDs and a buzzer.
Open Project in Cirkit Designer
This circuit uses an Arduino UNO to control a fan based on human presence detected by an LD2410C sensor. The sensor communicates with the Arduino via serial communication, and the Arduino activates a 5V relay to power the fan when human presence is detected.
Open Project in Cirkit Designer
This circuit is designed to automatically control a light bulb in a washroom based on occupancy, detected by two IR sensors. An Arduino UNO reads the state of the IR sensors and toggles a relay to power the light bulb when at least one person is detected inside. The code for the Arduino manages the count of people entering and exiting to determine the occupancy and control the light accordingly.
Open Project in Cirkit Designer
This circuit is designed for environmental monitoring and personal health tracking. It uses an ESP8266 NodeMCU to connect various sensors, including a DHT11 for temperature and humidity, an MQ6 gas sensor for detecting LPG and smoke, a MAX30102 for heart rate and blood oxygen saturation (SpO2) monitoring, and a buzzer and vibration motor for alerts. The system interfaces with the Blynk platform for remote data visualization and can trigger alerts based on sensor readings, such as excessive temperature or gas levels.
Open Project in Cirkit Designer| Specification | Value |
|---|---|
| Manufacturer | Grove |
| Part ID | AK9753 |
| Operating Voltage | 3.3V - 5V |
| Current Consumption | 1.5mA (typical) |
| Detection Range | Up to 5 meters |
| Interface | I2C |
| Operating Temperature | -10°C to 60°C |
| Dimensions | 20mm x 40mm |
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VCC | Power supply (3.3V - 5V) |
| 2 | GND | Ground |
| 3 | SDA | I2C data line |
| 4 | SCL | I2C clock line |
| 5 | INT | Interrupt output (optional) |
#include <Wire.h>
#define AK9753_I2C_ADDRESS 0x64
void setup() {
Serial.begin(9600);
Wire.begin(); // Initialize I2C communication
// Configure the sensor (if needed)
// For example, setting up the interrupt pin
pinMode(2, INPUT); // Assuming INT pin is connected to digital pin 2
}
void loop() {
Wire.beginTransmission(AK9753_I2C_ADDRESS);
Wire.write(0x00); // Register address to read data
Wire.endTransmission();
Wire.requestFrom(AK9753_I2C_ADDRESS, 2); // Request 2 bytes of data
if (Wire.available() == 2) {
int data = Wire.read() << 8 | Wire.read();
Serial.print("Presence detected: ");
Serial.println(data);
}
delay(1000); // Wait for 1 second before next reading
}
No Detection: The sensor does not detect any presence.
False Positives: The sensor detects presence when there is none.
I2C Communication Failure: The microcontroller cannot communicate with the sensor.
By following this documentation, users can effectively integrate the Grove - Human Presence Sensor (AK9753) into their projects, ensuring reliable and accurate human presence detection.