View source for KS0408 keyestudio ESP-01 Relay Module



<br>[[File:Ks0408-图片1.png|500px|right|thumb|keyestudio ESP-01 3V Relay Module(Black and Eco-friendly)]]<br>

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== Description == 
Relays are 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 relay module. The relay module is equipped with an ESP8266-01 Wifi module. <br>
It can be connected to the wireless network, and then can send commands to the module in the remote or LAN host computer. After receiving the command, the module can close or open the relay.<br>
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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
* Working current: >500MA
* Main control chip: ESP8266-01
* Relay model: HK4100F-DC3V-SHG
* Relay Specifications: 3A 250V AC/3A 30V DC
* Output terminal: 128-3.5 3P
* Button function: reset button


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== Packing Includes ==
* Keyestudio Relay module x 1
* ESP8266-01 Wifi module x 1
<br>[[File:Ks0408-图片2.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:0408001.png|600px|frameless|thumb]] <br>
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From the figure, remember your IP name, here is '''192.168.3.2'''  <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 module into the relay module and access to 3.3V power supply. <br>
<br>[[File:Ks0408-图片1.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:Ks0408-图片16.png|600px|frameless|thumb]] <br>
   
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'''<big>⑧</big>'''　Send the signal '''PIN00=0''' to close the relay. Shown below. <br>
<br>[[File:Ks0408-图片17.png|600px|frameless|thumb]] <br>
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You will hear the tick sound of relay closed.<br>

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'''<big>⑨</big>'''　Send the signal '''PIN00=1''' to open the relay. Shown below. <br>
<br>[[File:Ks0408-图片18.png|600px|frameless|thumb]] <br>
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You will hear the tick sound of relay open. <br>
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 module into the relay module and access to 3.3V power supply and wait for 20 seconds.<br>
<br>[[File:Ks0408-图片1.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:Ks0408-图片19.png|600px|frameless|thumb]] <br>
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'''<big>⑤</big>'''　Send the signal '''PIN00=0''' to close the relay. Shown below.<br>
<br>[[File:Ks0408-图片20.png|600px|frameless|thumb]] <br>
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You will hear the tick sound of relay closed. <br>
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'''<big>⑥</big>'''　Send the signal '''PIN00=1''' to open the relay. Shown below.<br>
<br>[[File:Ks0408-图片21.png|600px|frameless|thumb]] <br>
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You will hear the tick sound of relay open. <br>
For the Softap mode operation, the test is finished! <br>

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==Resource==

https://fs.keyestudio.com/KS0408


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==Get One Now==

*[https://www.keyestudio.com/keyestudio-esp-01-wifi-3v-relay-module-for-arduino-p0541.html   Get one now from keyestudio official website ]

*[https://www.aliexpress.com/store/product/keyestudio-ESP-01-Wifi-3V-Relay-Module-For-Arduino/1452162_32991913341.html?spm=2114.12010615.8148356.1.cb1e56d7Kc20g9   Buy from aliexpress store]


[[Category: Module]]