1. పరిచయం
This manual provides detailed instructions for the MLX90640-D110 IR Array Thermal Imaging Camera. This module is designed for non-contact temperature measurements and thermal imaging applications, compatible with various microcontrollers such as Raspberry Pi, ESP32, and STM32.
The MLX90640-D110 utilizes a far-infrared thermal sensor array to detect IR distribution, convert data into surface temperatures, and generate thermal images. Its compact size allows for integration into industrial and intelligent control systems.

Figure 1: MLX90640-D110 IR Array Thermal Imaging Camera Module.
2 కీ ఫీచర్లు
- Adopts the MLX90640 far-infrared thermal sensor array.
- Features 32×24 pixel resolution.
- 110° ఫీల్డ్ view (horizontal×vertical: 110°×75°), suitable for short-range measurements.
- Communicates via I2C interface, configurable to fast mode (up to 1MHz data rate).
- 1Hz రిఫ్రెష్ రేటు వద్ద 0.1K RMS యొక్క నాయిస్ ఈక్వివలెంట్ టెంపరేచర్ డిఫరెన్స్ (NETD).
- ఆన్బోర్డ్ వాల్యూమ్tage translator for compatibility with 3.3V/5V operating voltage.
- Compatible with host platforms such as Raspberry Pi, Arduino (ESP32), and STM32.
3. సాంకేతిక లక్షణాలు
| పరామితి | విలువ |
|---|---|
| ఆపరేటింగ్ వాల్యూమ్tage | 3.3V / 5V |
| ఆపరేటింగ్ కరెంట్ | <23mA |
| కమ్యూనికేషన్ ఇంటర్ఫేస్ | I2C (చిరునామా 0x33) |
| ఫీల్డ్ View (Horizontal×Vertical) | 110°×75° (wide angle FOV) |
| ఆపరేటింగ్ ఉష్ణోగ్రత | -40 ° C 85 ° C. |
| లక్ష్య ఉష్ణోగ్రత పరిధి | -40 ° C 300 ° C. |
| రిజల్యూషన్ | ±1°C |
| రిఫ్రెష్ రేట్ | 0.5Hz ∼ 64Hz (programmable) |
| కొలతలు | 28mm × 16mm |
| మౌంటు హోల్ పరిమాణం | 2.0మి.మీ |

Figure 2: Dimensions of the MLX90640-D110 module in millimeters.
4. సెటప్ మరియు కనెక్షన్
The MLX90640-D110 module communicates via the I2C interface. Ensure your host microcontroller (e.g., Raspberry Pi, ESP32, STM32) supports I2C communication and provides compatible voltagఇ స్థాయిలు.
4.1 పిన్అవుట్లు
Connect the module to your microcontroller according to the following pin assignments:
- VCC ↔ 3.3V / 5V (Power Supply)
- GND ↔ GND (Ground)
- SDA ↔ MCU.I2C data line
- SCL ↔ MCU.I2C clock line

Figure 3: MLX90640-D110 module connected with the included PH2.0 4PIN wire.

Figure 4: Pin labels (SCL, SDA, GND, VCC) on the MLX90640-D110 module.
4.2 ఉదాample Connection to Raspberry Pi
To connect the MLX90640-D110 to a Raspberry Pi, ensure the Raspberry Pi's I2C interface is enabled. Connect the pins as follows:
- VCC ↔ Raspberry Pi 3.3V or 5V pin (depending on your setup and voltage translator).
- GND ↔ Raspberry Pi GND pin.
- SDA ↔ Raspberry Pi SDA pin (GPIO2).
- SCL ↔ Raspberry Pi SCL pin (GPIO3).

చిత్రం 5: ఉదాample connection of the MLX90640-D110 to a Raspberry Pi, demonstrating thermal image generation.
5. ఆపరేషన్
After successful physical connection, software configuration is required to operate the MLX90640-D110. This involves:
- Enabling I2C: Ensure the I2C interface is enabled on your host microcontroller. For Raspberry Pi, this can typically be done via
raspi-config. - Installing Libraries: Install the necessary libraries for the MLX90640 sensor. Specific libraries and example code are usually available for Raspberry Pi, Arduino (ESP32), and STM32 platforms. Refer to the development resources provided by the manufacturer.
- రీడింగ్ డేటా: Use the provided software examples to read raw thermal data from the sensor via the I2C bus.
- Processing Data: The raw data needs to be processed to convert it into actual temperature values and then into a visual thermal image. The MLX90640 datasheet and associated libraries will contain algorithms for this conversion.
- Displaying Output: Display the generated thermal image on a connected screen or through a graphical user interface.
The module's refresh rate can be programmed between 0.5Hz and 64Hz, allowing adjustment for different application requirements.
6 అప్లికేషన్లు
The MLX90640-D110 Thermal Imaging Camera is suitable for a variety of applications, including:
- అధిక-ఖచ్చితమైన నాన్-కాంటాక్ట్ ఉష్ణోగ్రత కొలతలు.
- IR థర్మల్ ఇమేజింగ్ పరికరాలు మరియు IR థర్మామీటర్లలో ఏకీకరణ.
- Smart home systems, intelligent building management, and intelligent lighting solutions.
- పారిశ్రామిక ఉష్ణోగ్రత నియంత్రణ మరియు పర్యవేక్షణ.
- Security monitoring, including intrusion and movement detection.
7. నిర్వహణ
The MLX90640-D110 module is a sensitive electronic component. Follow these guidelines for proper maintenance:
- నిర్వహణ: Handle the module with care to avoid physical damage to the sensor lens or circuit board. Avoid touching the sensor surface directly.
- శుభ్రపరచడం: If necessary, gently clean the sensor lens with a soft, lint-free cloth. Do not use abrasive materials or harsh chemicals.
- నిల్వ: Store the module in a dry, dust-free environment within its specified operating temperature range when not in use.
- విద్యుత్ సరఫరా: విద్యుత్ సరఫరా వాల్యూమ్ నిర్ధారించుకోండిtage is within the specified 3.3V/5V range to prevent damage.
- పర్యావరణ పరిస్థితులు: Avoid exposing the module to extreme temperatures, high humidity, or corrosive environments.
8. ట్రబుల్షూటింగ్
If you encounter issues with your MLX90640-D110 module, consider the following troubleshooting steps:
- No Data/Communication Errors:
- అన్ని వైరింగ్ కనెక్షన్లు (VCC, GND, SDA, SCL) సరైనవి మరియు సురక్షితమైనవి అని ధృవీకరించండి.
- Confirm the I2C interface is enabled on your host microcontroller.
- విద్యుత్ సరఫరా వాల్యూమ్ను తనిఖీ చేయండిtage to the module (3.3V or 5V).
- Ensure the I2C address (0x33) is correctly configured in your software.
- Test with a known working I2C device or another MLX90640 module if available, to rule out host controller issues.
- తప్పు ఉష్ణోగ్రత రీడింగ్లు:
- సెన్సార్ లెన్స్ శుభ్రంగా మరియు అడ్డంకులు లేకుండా ఉందని నిర్ధారించుకోండి.
- Verify that the correct software libraries and calibration data for the MLX90640 are being used.
- Check the ambient temperature and ensure it is within the sensor's operating range.
- No Thermal Image Output:
- Confirm that data is being successfully read from the sensor.
- Review your data processing and image rendering code for errors.
- Ensure your display or GUI is correctly configured to receive and show the thermal data.
9. మద్దతు మరియు వనరులు
For additional resources, development examples, or technical support, please contact the seller via the Amazon messaging system. They can provide further documentation and assistance for integrating the MLX90640-D110 with your specific platform (Raspberry Pi, Arduino/ESP32, STM32).
Always refer to the official MLX90640 datasheet for in-depth technical details and programming guides.





