This tutorial is to teach you how to use the ESP8266 wifi module and expansion board to make the robot smart car walk.
Parts and Device:
1x ESP8266 wifi Nodemcu ESP-12E modules
1x ESP8266 wifi expansion board(L293D)
1x Robot Smart car with 1 motor and power box
2×18650 batteries
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Robot Smart Car Platform Metal Stainless Steel Chassis
ESP8266 Wifi NodeMcu Module + Motor Drive Expansion Shield Board L293D
Step1:
Download the Flash_download_tools zip file–flash_download_tools_v3.4.4
Download the Lua version (Nodemcu、Doit ESP8266 development board)—Download the APP named Doit Car on app store
Step2:
Upzip the file named Flash_download_tools zip on your computer;
Click the ESPFlashDownloadTool_v3.4.4.exe to install the tools
Step3:
Pop up a window as shown:
Copy the store address of the file name Doit_Nodemcu_Car_20160115.bin to download Path Config. And fill 0x00000 on the box as shown.
Such as: C:\Documents and Settings\Administrator\桌面\Doit_Nodemcu_Car_20160115.bin
Note :
Before click the start to burn the fireware , Push FLASH button in ESP8266 NodeMCU , then Push RESET button. Hold both button for one or two seconds and release them at the same time. Now the NodeMCU enters into burning mode.
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Step 4: Open your phone wifi
Choose the Doit_xxx wifi hotspot
Open 192.168.4.1 on your phone browser, then fill in the router wifi name and password to modified the ESPduino Setting
Step5:
Connect the cables of car motor and power box with ESP8266 wifi expansion board as shown.
The circuit graph of car motor
Step6: Open the Doit Car app, register a account and login, then you could use phone app to control the robot smart car to walk as per your needs.
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