The **M5TS-N0-R** is a high-precision, non-contact infrared thermal sensor module developed by Omron. It is designed specifically for temperature detection in industrial and consumer electronics, focusing on stability and accuracy without physical contact. --- ## 1. Core Technical Specifications The M5TS-N0-R integrates a thermopile sensor with advanced signal processing. Below are its primary electronic characteristics: | Parameter | Specification | | :--- | :--- | | **Operating Voltage** | 3.3V to 5.0V DC | | **Current Consumption** | Max 5mA (at 5V) | | **Object Temperature Range** | -40°C to +125°C | | **Operating Ambient Temp** | -20°C to +85°C | | **Output Type** | Digital (I2C Communication) | | **Field of View (FoV)** | 90° (Standard) | --- ## 2. Key Electronic Components & Architecture The module is not just a raw sensor; it is a complete System-in-Package (SiP). ### A. Thermopile Sensor Element The heart of the module is a MEMS (Micro-Electro-Mechanical Systems) thermopile. It converts infrared energy emitted by an object into a small voltage signal. * **Material:** Silicon-based micromachined structure. * **Function:** Detects long-wave infrared (LWIR) radiation. ### B. Signal Conditioning ASIC Because the voltage generated by a thermopile is extremely low (microvolts), the module includes an integrated ASIC (Application-Specific Integrated Circuit): * **Low-Noise Amplifier (LNA):** Boosts the weak thermopile signal. * **Analog-to-Digital Converter (ADC):** Converts the analog voltage into a 16-bit or 24-bit digital value. * **Temperature Compensation:** Includes an internal ambient temperature sensor to calibrate the output based on the module's own temperature. ### C. Digital Interface (I2C) The module communicates via the **I2C (Inter-Integrated Circuit)** protocol. This allows it to be easily interfaced with microcontrollers like Arduino, ESP32, or STM32 using only two wires: * **SDA:** Serial Data * **SCL:** Serial Clock --- ## 3. Notable Features 1. **High EMI Immunity:** The electronic shielding on the M5TS-N0-R is designed to resist electromagnetic interference, making it reliable in noisy industrial environments. 2. **Factory Calibrated:** The sensor comes pre-calibrated from the factory, meaning the electronic output corresponds directly to temperature without requiring complex user calibration. 3. **Low Power Mode:** Supports power-saving states suitable for battery-operated IoT devices. --- ## 4. Connection Diagram (Typical Pins) ```text [ Pin 1 ] -> VCC (3.3V - 5V) [ Pin 2 ] -> GND (Ground) [ Pin 3 ] -> SCL (I2C Clock) [ Pin 4 ] -> SDA (I2C Data) ```