View source for KS0409 Keyestudio ESP-01 DHT11 Temperature and Humidity Module



<br>[[File:Ks0409-图片1.png|500px|right|thumb|keyestudio ESP-01 DHT11 Temperature and Humidity Module]]<br>

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== Description == 
DHT11 Temperature and Humidity Module is one of the most commonly used components for setting the smart home when we are doing the Internet of Things.<br>
For wireless control, we specially designed this ESP-01 DHT11 Temperature and Humidity module. 
The DHT11 Temperature and Humidity module is equipped with an ESP8266-01 Wifi module, which can access to the wireless network.<br>
You can remote control any other devices according to the temperature and humidity data measured by the DHT11 module.
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For simple use, we provide our own compiled firmware, the firmware is server mode. The specific information are as follows: <br>
*'''Module working mode:''' <br>
 work in mode:3
*'''Softap mode:''' <br>
 softAP SSID: KeyesWifi_A  ;  password: KeyesWifi   <br>
 softAP IP: 192.168.2.1    <br>
 softAP_server IP: 192.168.2.1   <br>
*'''Station mode:'''  <br>
 Station SSID: KeyesWifi_S  ;  password: KeyesWifi   <br>
 Station IP: automatic router assignment   <br>
 Station_server IP: Router automatically assigns port:8080   <br>

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== Specifications ==
* Working voltage: DC 3V--3.3V
* Main control chip: ESP8266-01
* Button function: reset button
* Temperature range: 0℃ to 50℃±2℃
* Humidity range: 20-90%RH±5%RH
* Dimensions：42mm*24mm*22mm
* Weight：5.7g


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== Packing Includes ==
*Keyestudio DHT11 Temperature and Humidity module x 1
*ESP8266-01 Wifi module x 1
<br>[[File:Ks0409-图片2.png|600px|frameless|thumb]][[File:Ks0409-图片3.png|600px|frameless|thumb]]    <br>


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== Use Methods ==
=== 1. Burn the Firmware ===
We have already burned the firmware in the ESP8266-01 WIFI module. And you can re-burn the firmware by yourself as well.  <br>
The programming method is as follows:  <br>
'''<big>①</big>　'''Plug the ESP8266 WIFI module onto the keyestudio USB to ESP-01S Wifi shield, and push the shield’s button to '''Uart Download''' end. Then can directly connect them to your computer’s USB port.  <br>
<br>[[File:Ks0408-图片3.png|600px|frameless|thumb]] <br>

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'''<big>②</big>''' Double click to open '''FLASH_DOWNLOAD_TOOL''', as shown in the figure below, uploading the firmware.  <br>
You will see the interface window below.  <br>
<br>[[File:Ks0408-图片4.png|600px|frameless|thumb]] <br>
<br>[[File:0339图片49.png|600px|frameless|thumb]] <br> 
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Then open the ESP8266 Download Tool. <br>
For SPIDownload, open the corresponding file. As shown below. <br>
<br>[[File:Ks0408-图片6.png|800px|frameless|thumb]] <br>
<br>[[File:Ks0408-图片7.png|500px|frameless|thumb]] <br>
<br>[[File:Ks0408-图片8.png|600px|frameless|thumb]] <br>
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After click to start download, the interface is as shown below.
<br>[[File:Ks0408-图片9.png|600px|frameless|thumb]] <br>
  
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=== 2.Station Mode Operation ===
Because the station_server IP is automatically assigned by the router, so need to read the IP from the serial port. For example: <br>
'''<big>①</big>''' Set the SSID of the home Wifi to: KeyesWifi_S and password is KeyesWifi   <br> <span style=color:red>(note here should set your own home wifi) </span><br>
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'''<big>②</big>''' Directly connect the keyestudio USB to ESP-01S Wifi shield to your computer’s USB port. Then push the shield’s button to '''Flash Boot''' side. <br>
<br>[[File:Ks0408-图片10.png|500px|frameless|thumb]] <br>
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'''<big>③</big>''' Open the PUTTY software on your computer. Below is the example figure we operate. <br>
<br>[[File:Ks0408-图片11.png|600px|frameless|thumb]] <br>
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Double-click the icon of PUTTY software, pop up the interface window below.
<br>[[File:Ks0408-图片12.png|800px|frameless|thumb]] <br>
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After Click Open, plug the ESP8266 WIFI module into keyestudio USB to ESP-01S Wifi shield. <br>
<span style=color:red> Note must click '''Open''' first, then plug the ESP8266 WIFI module into keyestudio USB to ESP-01S Wifi shield. Or else it is invalid. </span><br>
<br>[[File:Ks0408-图片13.png|600px|frameless|thumb]] <br>

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'''<big>④</big>''' The PUTTY terminal will print the message showed below. IP read success! <br>
<br>[[File:Ks0409-图片4.png|600px|frameless|thumb]] <br>
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From the figure, remember your IP name, here is '''192.168.3.30'''  <br>
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'''<big>⑤</big>'''　The computer and the home wifi are in the same LAN, and the network segment is the same. Connect your computer to your home WiFi. For example, here we use: '''SSID: KeyesWifi_S  ;  Password: KeyesWifi'''     <br>

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'''<big>⑥</big>'''　Plug the ESP8266-01 WIFI module into the DHT11 Temperature and Humidity module and access to 3.3V power supply. <br>
<br>[[File:Ks0409-图片5.png|600px|frameless|thumb]] <br>

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'''<big>⑦</big>''' Open the network debugging assistant software, as shown below. <br>
<br>[[File:Ks0408-图片15.png|600px|frameless|thumb]] <br>
<br>[[File:Ks0409-图片6.png|600px|frameless|thumb]] <br>
   
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'''<big>⑧</big>'''　Send '''PIN02=DHT11''', print out the temperature and humidity data. <br>
<br>[[File:Ks0409-图片7.png|600px|frameless|thumb]] <br>
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For the Station mode operation, the test is finished!<br>

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=== 3.Softap Mode Operation ===
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'''<big>①</big>'''　The computer and the home wifi are in the same LAN, and the network segment is the same. <span style=color:red> Change your home wifi name to avoid wifi module automatic connected. </span><br>
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'''<big>②</big>'''　Connect your computer to your home WiFi. For example, here we use: '''SSID: KeyesWifi_A  ;  Password: KeyesWifi'''   <br>
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'''<big>③</big>''' Plug the ESP8266-01 WIFI module into the DHT11 Temperature and Humidity module and access to 3.3V power supply and wait for 20 seconds.<br>
<br>[[File:Ks0409-图片5.png|600px|frameless|thumb]] <br>
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'''<big>④</big>'''　Open the network debugging assistant software, as shown below.<br>
<br>[[File:Ks0408-图片15.png|600px|frameless|thumb]] <br>
<br>[[File:Ks0409-图片8.png|600px|frameless|thumb]] <br>
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'''<big>⑤</big>'''　Send '''PIN02=DHT11''', print out the temperature and humidity data.<br>
<br>[[File:Ks0409-图片9.png|600px|frameless|thumb]] <br>
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For the Softap mode operation, the test is finished! <br>

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==Resource==

*Click the link to download all the software and datasheet: <br>
https://fs.keyestudio.com/KS0409


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==Get One Now==

*[https://www.keyestudio.com/keyestudio-esp-01-dht11-temperature-and-humidity-module-esp-8266-wifi-for-arduino-p0542-p0542.html   Get one now from keyestudio official website ]

*[https://www.aliexpress.com/store/product/Keyestudio-ESP-01-DHT11-Temperature-and-Humidity-Module-ESP-8266-WIFI-For-Arduino/1452162_32994121936.html?spm=2114.12010615.8148356.5.3c3a54admC5WKE  Buy from aliexpress store]


[[Category: Module]]