The **M5TS-N2-R** is a specific digital temperature sensor module, typically associated with the **M5Stack** ecosystem. It is designed for high-precision temperature monitoring, often utilized in industrial or laboratory environments. Below is the technical breakdown of its electronic components and specifications. --- ## 1. Core Component: The Sensor IC The heart of the M5TS-N2-R is the **STS30** (or similar high-accuracy series) digital temperature sensor manufactured by Sensirion. | Feature | Specification | | :--- | :--- | | **Communication** | I2C (Inter-Integrated Circuit) | | **I2C Address** | Typically 0x4A | | **Measurement Range** | -40°C to +125°C | | **Accuracy** | ±0.2°C (typical within optimal range) | | **Resolution** | 0.01°C | --- ## 2. Circuitry & Interface The module is built to be "Plug-and-Play" with M5Stack Controller units (Basic, Core2, StickC). ### A. The Grove Interface It uses a standard 4-pin HY2.0-4P connector: * **GND:** Ground. * **5V/3.3V:** Power supply (The module usually includes an internal LDO to regulate voltage). * **SDA:** I2C Data line. * **SCL:** I2C Clock line. ### B. Onboard Electronics * **Pull-up Resistors:** Necessary for I2C stability, usually 4.7kΩ or 10kΩ resistors on the SDA/SCL lines. * **Decoupling Capacitors:** Small ceramic capacitors (0.1µF) to filter power supply noise and ensure sensor stability. * **Protective Housing:** Unlike raw ICs, the "N2-R" variant usually features a robust casing to protect the electronics from physical impact. --- ## 3. Key Electronic Characteristics The device is optimized for low power consumption and high reliability. | Parameter | Value | | :--- | :--- | | **Supply Voltage** | 3.3V to 5V DC | | **Current Consumption** | ~600µA (active), ~2µA (sleep) | | **Response Time** | > 2 seconds (due to thermal mass of the housing) | | **Stability** | Long-term drift < 0.03°C/year | --- ## 4. Software Implementation To interact with the electronic parts, you use the I2C protocol. Here is a basic structural example using Arduino/C++: ```cpp #include void setup() { Wire.begin(); // Join I2C bus Serial.begin(115200); } void loop() { // Typical sequence: Write command to 0x4A, wait, read 3-6 bytes Wire.beginTransmission(0x4A); Wire.write(0x2C); // High repeatability command Wire.write(0x06); Wire.endTransmission(); delay(20); Wire.requestFrom(0x4A, 3); if(Wire.available() == 3) { uint16_t rawTemp = (Wire.read() << 8) | Wire.read(); uint8_t crc = Wire.read(); float tempC = -45 + 175 * ((float)rawTemp / 65535.0); Serial.println(tempC); } delay(1000); } ``` ---