In this projct, we will show how to burn the MQTT firmware for the ESP13 WiFi shield. To complete the next operation, we need to do the following preparations：
Before install firmware, you need download following software first:
Unzip above files into c:\flash_download_tools_v3.6.3 folder.
Option 1) USE CP1202 USB to TTL adapter to connect PC to ESP13 WIFI Shield
There are two kinds of voltage modes，you can use this addpter to connect the ESP WiFi Shield to computer as follows:
Option 2: Use Arduino to connect ESP13 wifi Shield
Arduino D0(RX) to ESP13 shield TX0
Arduino D0(TX) to ESP13 shield RX0
Arduino 3.3V to ESP13 shield 3.3V
Arduino GND to ESP13 shield G
Arduino Reset to Arduino GND
After completed above operations, open C:\FLASH_DOWNLOAD_TOOLS_V3.6.3 folder and run ESPFlashDownloadTool_v3.6.3.exe program file, now you can config the software settings as per following steps:
Choose the “ESP8266 DownloadTool” for this project.
Set the field values as per following instruction:
As the below photo, you can see “FINISH” on the software, it means you have burned the MQTT firmware successfully.
When we have burned the firmware, if the ESP WiFi Shield restarts again and again, or the softAP can’t be built up, please click the “ERASE” button to erase the flash, then repeat the above steps.
DownLoad Url osoyoo.com
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Your link is broken MQTT firmware: Doit_MQTT&UARTv1.0.3.bin
Can you please share the firmware?