The **HTS-0E-R** is a specialized high-temperature humidity and temperature sensor module. It is designed for applications where standard consumer electronics would fail due to thermal stress. --- ### 1. Key Technical Specifications | Parameter | Specification | |:---|:---| | **Operating Voltage** | 3.3V to 5.5V DC | | **Interface** | I2C (Inter-Integrated Circuit) | | **Humidity Range** | 0% to 100% RH | | **Temperature Range** | -40°C to +125°C (Extended range) | | **RH Accuracy** | ±3% RH (typical) | | **Temp Accuracy** | ±0.3°C (typical) | | **Package Type** | Surface Mount (SMD) | --- ### 2. Core Electronic Components The HTS-0E-R is an integrated system-on-chip (SoC) style module consisting of several critical sub-components: * **Capacitive Polymer Sensing Element:** The humidity sensor uses a dielectric polymer that changes capacitance based on the ambient moisture level. * **Band-gap Temperature Sensor:** A precision silicon band-gap sensor measures the thermal energy and provides a linear voltage output proportional to temperature. * **EEPROM/Calibration Memory:** Contains factory-calibrated coefficients used to linearize the raw data from the sensors. * **14-bit ADC (Analog-to-Digital Converter):** Converts the analog signals from the sensors into high-resolution digital data. * **I2C Interface Logic:** Manages communication with the host microcontroller (MCU) using the Serial Data (SDA) and Serial Clock (SCL) lines. --- ### 3. Pin Configuration & Connection To integrate the HTS-0E-R into a circuit, four primary connections are typically required: ```cpp // Example: Standard I2C Wiring 1. VCC -> 3.3V or 5V Power Supply 2. GND -> Ground 3. SDA -> Serial Data Line (Requires Pull-up resistor) 4. SCL -> Serial Clock Line (Requires Pull-up resistor) ``` --- ### 4. Distinctive Features 1. **Thermal Stability:** Unlike the DHT series, the "0E-R" variant is often ruggedized for industrial environments. 2. **Low Power Consumption:** Features a sleep mode that draws less than 1µA, making it suitable for battery-powered IoT devices. 3. **Fast Response Time:** The sensing membrane is optimized for quick recovery from saturation (condensing environments).