The GY-MCU90640 is a sophisticated thermal imaging sensor module that incorporates the Melexis MLX90640 Far Infrared (FIR) sensor. This module is capable of detecting and measuring temperature variations, which makes it an invaluable tool for a wide range of applications. It is commonly used in thermal imaging cameras, human presence detection, and non-contact temperature measurement systems.
This circuit integrates an ESP32 microcontroller with a GY-MCU90640 thermal camera and a Nextion Touch LCD display. The ESP32 collects thermal data from the GY-MCU90640 and communicates it to the Nextion display for visualization. Power and ground connections are appropriately managed to ensure proper operation of all components.
Open Project in Cirkit Designer
This circuit integrates an Arduino Nano with an MPU6050 accelerometer and gyroscope sensor and a SIM800L GSM module. The Arduino reads sensor data from the MPU6050 via I2C and communicates with the SIM800L for GSM functionalities. Power is managed through a 7805 voltage regulator, converting 3.7V battery input to 5V for the components.
Open Project in Cirkit Designer
This circuit is designed for communication and location tracking purposes. It features an Arduino Nano interfaced with a SIM800L GSM module for cellular connectivity, a GPS NEO 6M module for obtaining geographical coordinates, and an AITrip ADXL335 GY-61 accelerometer for motion sensing. The LM2596 Step Down Module is used to regulate the power supply to the components.
Open Project in Cirkit Designer
This circuit is designed for motion sensing and data logging applications. It features a SparkFun Pro Micro microcontroller interfaced with a BMI160 6DOF sensor for motion detection and two 24LC512 EEPROM chips for extended data storage. The microcontroller reads gyroscopic and accelerometer data from the BMI160 sensor, processes it, and stores it in the EEPROM, with power supplied by a Polymer Lithium Ion Battery.
Open Project in Cirkit Designer| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VCC | Power supply (3.3V - 5V) |
| 2 | GND | Ground |
| 3 | SCL | Serial Clock Line for I2C communication |
| 4 | SDA | Serial Data Line for I2C communication |
| 5 | RX | UART Receive (unused for I2C mode) |
| 6 | TX | UART Transmit (unused for I2C mode) |
#include <Wire.h>
#include <Adafruit_MLX90640.h>
Adafruit_MLX90640 mlx;
void setup() {
Serial.begin(9600);
Wire.begin();
mlx.begin(MLX90640_I2CADDR_DEFAULT, &Wire);
mlx.setMode(MLX90640_INTERLEAVED);
mlx.setResolution(MLX90640_ADC_16BIT);
mlx.setRefreshRate(MLX90640_2_HZ);
}
void loop() {
float temp[32 * 24]; // Array to store temperature for each pixel
mlx.getFrame(temp);
for (int i = 0; i < 24; i++) {
for (int j = 0; j < 32; j++) {
Serial.print(temp[j + i * 32], 1);
Serial.print(", ");
}
Serial.println();
}
delay(500);
}
Note: The above code uses the Adafruit MLX90640 library, which simplifies the interaction with the sensor. Make sure to install the library before compiling the code.
FAQs:
Q: Can the GY-MCU90640 be used with 5V microcontrollers like Arduino UNO? A: Yes, the module can be interfaced with 5V systems as it is 5V tolerant.
Q: How can I change the I2C address of the sensor? A: The I2C address is fixed and cannot be changed.
Q: What is the maximum frame rate of the GY-MCU90640? A: The maximum frame rate is 64Hz, but it can be configured to lower rates to suit the application.
Q: Is it necessary to calibrate the sensor? A: The sensor comes factory-calibrated, but for precise applications, additional calibration may be required.
For further assistance, consult the manufacturer's datasheet and the community forums dedicated to the GY-MCU90640 module.