View source for KS0385 Keyestudio ESP 01S WIFI to Serial Shield for Arduino

[[image:ks0385.png|thumb|500px|right|keyestudio ESP-01S WiFi to Serial Shield for Arduino]]

==Introduction==
This is an expansion board for the ESP-01S WiFi module. After power-on, the module is in BOOT flash mode. The AT command can be directly tested through the serial port on the shield.<br>
To burn the firmware, first press and hold the Flash button on the shield, then click on burning on the software interface, and press the RST button. <br>
When release the Flash button, the module will enter the download mode and start burning the firmware.

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==Technical Parameters==
* Working voltage: DC 5V
* Working current: minimum 500mA
* Communication voltage: 3.3V
* Environmental attributes: ROHS
* Dimensions: 24mm*41.3mm*11.9mm
* Weight: 3.8g
 
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==Connection Method==


{| width="40%" cellspacing="0" border="1"
|-
! align="center" scope="col" | Shield
! align="center" scope="col" | USB to Serial Module（FT232 Module）
|-

|-
| align="center" | 3.3V
| align="center" | 5V
|-

|-
| align="center" | GND
| align="center" | GND
|-

|-
| align="center" | TX
| align="center" | RX
|-

|-
| align="center" | RX
| align="center" | TX
|-
|}

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==Use Method==

===1) AT Command Settings===
When testing the AT command, you should use a USB to Serial module, that is [http://www.keyestudio.com/ks0277.html FT232 module], and an [http://www.keyestudio.com/ks0339.html ESP8266 WIFI module]. <br>
Connect well and then connect them to your computer using mini USB cable.<br>
<br>[[Image:ks0385-1.png|700px|frameless]]<br>
Connected successfully, open the [https://drive.google.com/open?id=1UAYAhdqr2iXO49ibkLyV4c2Aieteihs6 '''ESP8266 debugging tool'''], set the baud rate to 115200, click to open the Serial Port, and click Test the AT. <br>
You should see the data received window will print out '''AT OK'''. <br>
To set other AT commands, the method is similar.<br>
You can download the ESP8266 debugging tool from the link below:<br>
https://drive.google.com/open?id=1UAYAhdqr2iXO49ibkLyV4c2Aieteihs6
<br>[[Image:ks0385-2.png|700px|frameless]]<br>

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===2) Firmware Programming===
When setting the AT command, you should use a USB to Serial module, that is [http://www.keyestudio.com/ks0277.html FT232 module], and a [http://www.keyestudio.com/ks0385.html WIFI to serial shield]. <br>
Connect well and then connect them to your computer using mini USB cable.
<br>[[Image:ks0385-1.png|700px|frameless]]<br>    

Then open [https://drive.google.com/open?id=1Zjg-lg7ySsmN4C3A0Oz9UJCdXqtkdf_R flash_download_tools_v3.6.5software], click to open. 
<br>[[Image:ks0385-3.png|700px|frameless]]<br> 
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You can download the flash download tools v3.6.5 from the link:<br>
https://drive.google.com/open?id=1Zjg-lg7ySsmN4C3A0Oz9UJCdXqtkdf_R
<br>[[Image:ks0385-4.png|700px|frameless]]<br>

Wait for a minute, pop up the below interface, click the '''ESP8266 Download Tool'''.
<br>[[Image:ks0385-5.png|700px|frameless]]<br>

Enter the interface to set the firmware burning. This is the address of firmware burning. 
<br>[[Image:ks0385-6.png|700px|frameless]]<br>
<br>[[Image:ks0385-7.png|700px|frameless]]<br>

Hold the '''FLASH''' button on the shield, and Tap '''START'''  button, then press '''RST''' button on the shield, release the '''FLASH''' button. <br>
The module will enter the download mode. Shown below. <br>
<br>[[Image:ks0385-8.png|700px|frameless]]  [[Image:ks0385-9.png|700px|frameless]]<br>
Firmware download completed, can enter the corresponding software to set the AT command.

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==Schematic Diagram==
<br>[[Image:ks0385 Diagram.png|700px|frameless]]<br>

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==Resources==

*'''Download related files here:'''<br>

https://fs.keyestudio.com/KS0385




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==Get One Now==
*[https://www.keyestudio.com/keyestudio-esp-01s-wifi-to-serial-shield-module-for-arduino-esp8266-wifi-p0499-p0499.html   '''Official website'''  ]

*[https://www.aliexpress.com/store/product/Keyestudio-ESP-01S-Wifi-to-Serial-Shield-Module-for-Arduino-ESP8266-Wifi/1452162_32962666306.html?spm=2114.12010611.8148356.3.27956c0ehzaxb3  Shop on aliexpress ]

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[[Category: Shield]]