NoticeDHT11 Humidity Temperature Sensor Brick
From ITEAD Wiki
Contents
Overview
DHT11 electronic brick of digital temperature & humidity sensor features a digital temperature & humidity sensor complex with a calibrated digital signal output. Its single-bus operation, extremely small size and low consumption enable it to be used in HVAC, automotive, weather stations, dehumidifier and other applications.
Features
1. Plug and play, easy to use. Compatible with the mainstream 2.54 interfaces and 4-Pin Grove interfaces in the market.
2. With use of M4 standard fixed holes, compatible with M4-standard kits such as Lego and Makeblock.
3. Rotatable detecting direction for better adaption.
Specifications
| PCB size | 22.0mm X 20.5mm X 1.6mm |
| Working voltage | 3.3 or 5V DC |
| Operating voltage | 3.3 or 5V DC |
| Measurement range | 20-95%RH；0-50℃ |
| Resolution | 8bit（temperature），8bit（humidity） |
| Compatible interfaces | 2.54 3-pin interface and 4-pin Grove interface(1) |
Note 1: S for digital input/output port, V and G for voltage at the common collector and ground respectively
Electrical Characteristics
| Parameter | Min. | Typical | Max. | Unit |
| Working voltage | 3 | 5 | 5.5 | VDC |
| Working current（VCC=5V，T=25℃） | 0.5 | - | 2.5 | mA |
| Sampling interval | 1 | - | - | s |
Humidity
| Parameter | Min. | Typical | Max. | Unit |
| Accuracy (25℃) | - | ±4 | - | %RH |
| Accuracy (0-50℃) | - | - | ±5 | %RH |
| Measurement range (25℃) | 20 | - | 95 | %RH |
| Response time: 1/e（63%）25℃，1m/s air | 6 | 10 | 15 | s |
Temperature
| Parameter | Min. | Typical | Max. | Unit |
| Accuracy | ±1 | - | ±2 | ℃ |
| Measurement range | 0 | - | 50 | ℃ |
| Response time /e（63%） | 6 | 30 | s |
