DataSheet39.com

What is DHT11?

This electronic component, produced by the manufacturer "Aosong", performs the same function as "Temperature and humidity module".


DHT11 Datasheet PDF - Aosong

Part Number DHT11
Description Temperature and humidity module
Manufacturers Aosong 
Logo Aosong Logo 


There is a preview and DHT11 download ( pdf file ) link at the bottom of this page.





Total 8 Pages



Preview 1 page

No Preview Available ! DHT11 datasheet, circuit

Temperature and humidity module
DHT11 Product Manual
www.aosong.com
Free Datasheet http://www.datasheetlist.com/

line_dark_gray
DHT11 equivalent
Data format:
The 8bit humidity integer data + 8bit the Humidity decimal data +8 bit temperature integer data +
8bit fractional temperature data +8 bit parity bit.
Parity bit data definition
8bit humidity integer data + 8bit humidity decimal data +8 bit temperature integer data + 8bit
temperature fractional data8bit checksum is equal to the results of the last eight.
Example 1: 40 data is received:
0011 0101
0000 0000
0001 1000
High humidity 8 Low humidity 8 High temp. 8
Calculate
0011 0101+0000 0000+0001 1000+0000 0000= 0100 1101
Received data is correct
Humidity0011 0101=35H=53%RH
Temperature0001 1000=18H=24
0000 0000
Low temp. 8
0100 1101
Parity bit
Example 2: 40 data is received:
0011 0101
0000 0000
0001 1000
High humidity 8 Low humidity 8 High temp. 8
Calculate
0011 0101+0000 0000+0001 1000+0000 00000100 1101
010011010100 1001
The received data is not correct, give up, to re-receive data.
0000 0000
Low temp. 8
0100 1001
Parity bit
Data Timing Diagram
User host (MCU) to send a signal, DHT11 converted from low-power mode to high-speed mode,
until the host began to signal the end of the DHT11 send a response signal to send 40bit data, and
trigger a letter collection. The signal is sent as shown.
Data Timing Diagram
Note: The host reads the temperature and humidity data from DHT11 always the last measured
value, such as twice the measured interval of time is very long, continuous read twice to the second
value of real-time temperature and humidity values.
Aosong(Guangzhou) Electronics Co.,Ltd.
TEL020-36042809 / 36380552
-4-
www.aosong.com
Free Datasheet http://www.datasheetlist.com/


line_dark_gray

Preview 5 Page


Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for DHT11 electronic component.


Information Total 8 Pages
Link URL [ Copy URL to Clipboard ]
Product Image
and Detail view

DHT11 sensor


1. - Humidity & Temperature Sensor

[ Learn More ]




Download [ DHT11.PDF Datasheet ]

Share Link :

Electronic Components Distributor


An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists.


SparkFun Electronics Allied Electronics DigiKey Electronics Arrow Electronics
Mouser Electronics Adafruit Newark Chip One Stop


Featured Datasheets

Part NumberDescriptionMFRS
DHT11The function is Humidity & Temperature Sensor. D-RoboticsD-Robotics
DHT11The function is Temperature and humidity module. AosongAosong
DHT11The function is Humidity and Temperature Sensor. SunromSunrom

Semiconductors commonly used in industry:

1N4148   |   BAW56   |   1N5400   |   NE555   |  

LM324   |   BC327   |   IRF840  |   2N3904   |  



Quick jump to:

DHT1     1N4     2N2     2SA     2SC     74H     BC     HCF     IRF     KA    

LA     LM     MC     NE     ST     STK     TDA     TL     UA    



Privacy Policy   |    Contact Us     |    New    |    Search