Contactless Temperature Sensor Module For Arduino

Ths is an Infra-Red thermometer for non-contact temperature measurements.  Both the IR-sensitive thermopile detector chip and the signal conditioning ASIC are integrated into the same TO-39 can. The Integrate sensor is a low noise amplifier, 17-bit ADC, and powerful DSP unit thus achieving high accuracy and resolution of the thermometer. RoboticsBD

The user can configure the digital output to be PWM. As a standard, the 10-bit PWM is configured to continuously transmit the measured temperature in the range of -20 to 120 °C, with an output resolution of 0.14 °C. RoboticsBD.Featured By RoboticsBD.

Product Images are shown for illustrative purposes only and may differ from the actual product.

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Features:

1. High precision non-contact temperature measurements
2. Thermal Comfort sensor for Mobile Air Conditioning control system
3. The temperature sensing element for residential, commercial and industrial building air conditioning Windshield defogging
4. The automotive blind angle detection
5. Industrial temperature control of moving parts
6. Temperature control in printers and copiers
7. Home appliances with temperature control
8. Healthcare
9. Livestock monitoring
10. Multiple zone temperature control – up to 127 sensors can be read via common 2 wires
11. Thermal relay/alert
12. Body temperature measurement
13. Movement detection. RoboticsBD

Features:

1. Works from 3.3V to 5V input, Module has power regulator IC built-in.
2. Standard I2C interface with built 2x pull up resistors
3. When measuring the temperature, please maintain a measuring distance of 1 cm
4. Small size, low cost
5. Easy to integrate
6. The factory was calibrated in a wide temperature range: -40 to 125 °C for sensor temperature and -70 to 380 °C for object temperature.
7. High accuracy of 0.5°C over the wide temperature range (0..+50 C for both Ta and To)
8. Medical accuracy of 0.1°C in a limited temperature range available on request
9. The measurement resolution of 0.01°C
10. SMBus compatible digital interface for fast temperature readings and building sensor networks
11. Customizable PWM output for continuous reading
12. Simple adaptation for 8 to 16V applications. RoboticsBD

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Please allow 5% measuring deviation due to manual measurement.

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Documentation:

Please use the following sketch to work with our sensor

#include <Wire.h>

constexpr uint8_t I2C_ADDRESS = 0x7f;
constexpr uint8_t CMD_REGISTER = 0x30;
constexpr uint8_t DATA_REGISTER_BASE = 0x10;
constexpr uint8_t POWER_ON_CMD = 0x08;
constexpr uint8_t POWER_OFF_CMD = 0x00;
constexpr float TEMPERATURE_SCALE = 16384.0;  // 2^14

void setup() {
  Serial.begin(9600);

  if (!writeCommand(POWER_OFF_CMD)) {
    Serial.println("Error: Failed to reset sensor!");
  }
  delay(10);

  if (!writeCommand(POWER_ON_CMD)) {
    Serial.println("Error: Failed to power on sensor!");
  }
}

void loop() {
  if (!writeCommand(POWER_ON_CMD)) {
    Serial.println("Error: Communication failed!");
    delay(1000);
    return;
  }

  delay(50);

  int32_t rawTemperature = readTemperatureData();
  if (rawTemperature != -1) {
    float temperature = static_cast<float>(rawTemperature) / TEMPERATURE_SCALE;
    Serial.print("Temperature: ");
    Serial.print(temperature);
    Serial.println(" °C");
  } else {
    Serial.println("Error: Failed to read temperature data!");
  }

  delay(200);
}

bool writeCommand(uint8_t command) {
  Wire.beginTransmission(I2C_ADDRESS);
  Wire.write(CMD_REGISTER);
  Wire.write(command);
  return (Wire.endTransmission() == 0);
}

int32_t readTemperatureData() {
  uint8_t buffer[3] = {0};

  for (int i = 0; i < 3; i++) {
    Wire.beginTransmission(I2C_ADDRESS);
    Wire.write(DATA_REGISTER_BASE + i);
    if (Wire.endTransmission() != 0) return -1;

    Wire.requestFrom(I2C_ADDRESS, 1);
    if (Wire.available()) {
      buffer[i] = Wire.read();
    } else {
      return -1;
    }
  }

  int32_t result =
    ((int32_t)buffer[0] << 16) |
    ((int32_t)buffer[1] << 8) |
    buffer[2];

  if (result & 0x00800000) {
    result |= 0xFF000000;
  }

  return result;
}
  

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Package Includes:

1 x Contactless Temperature Sensor Module For Arduino

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