The SHT85 series is a newly designed temperature and humidity sensor from Sensations. These sensors added a new platform for reliability and improved the sensing accuracy specification compared to its predecessor. The functionality incorporates enhanced signal processing, two distinctive and user-selectable 12C addresses with a communication speed of up to 1 MHz of frequency. Moreover, the device is driven to 5.5v and is compatible in an assembly situation.
Hardware Overview
SHT85, is a cheap-cost, sensor system on a single chip. The sensor comprises a band-gap temperature sensor to measure temperature, a capacitive humidity sensor for measuring humidity in the environment, an analog-to-digital converter, data memory, measurement data processing, and also a digital communication interface.
Features SHT85
- High-accuracy RH&T sensor for demanding measurement & test applications
- Typical accuracy of 1.5 %RH and 0.1 °C
- Pin-type packaging for easy integration and replacement
- Fully calibrated
- Temperature compensated digital output
- High reliability and long-term stability
- Industry-proven technology with a track record of more than 10 years
- Designed for mass production
- Optimized for lowest cost
- Low signal noise
Specifications SHT85
| Humidity Range: | 0% to 100% Relative Humidity |
| Humidity Accuracy: | ± 1.5% RH |
| Temperature Accuracy: | ± 0.1°C |
| RH Response Time: | 8s |
| Temperature Response Time: | 2s |
| Sensor Interface Type: | I2C |
| Sensor Output Type: | Digital |
| Sensor Case Style: | SIP |
| No. of Pins: | 4Pins |
| Operating Temperature Min: | -40°C |
| Operating Temperature Max: | 105°C |
| Supply Voltage Min: | 2.15V |
| Supply Voltage Max: | 5.5V |
| Product Range: | SHT Series |
Pinouts of SHT85 Sensor
| Pin Number | Pin Name | Description |
| 1 | SCL | Input Serial clock used to synchronize the communication between microcontroller and sensor |
| 2 | VDD | Supply voltage must be between 2.4 and 5.5V |
| 3 | GND | Ground |
| 4 | SDA | Serial Data, is used to transfer data in and out of the sensor |
Applications
Environmental Monitoring
This SHT71 Sensor is useful for the advancement of embedded systems for monitoring environmental parameters like humidity and temperature
IOT Based Monitoring Systems
Through IOT based Weather monitoring and reporting system, one can gather, convert, evaluate, and present calculated data on a web server.
Weather Station
A weather station is a system that collects data or information about the weather or environment and thus uses many sensors. Hence, it can use temperature and humidity sensors for this purpose.
