[Test passed] ESP-01S IoT switch connected to Xiaoai classmates

       This design is based on esp-01s, which uses the Internet module to control the opening and closing of the relay to achieve the purpose of remote control of charging and discharging. The design is small in size and is very suitable for embedding into equipment as an expansion of the power supply part. The control circuit part adopts the design of photocouple isolation and triode control relay, which can prevent the external circuit from burning out the control components and meet the design needs of the application scenario. The type_c input interface can drive larger currents. The signal line in this design is not drawn out. If necessary, the type_c and USB_A interface signal pins can be directly connected, so that the data exchange function can be realized.
 
       We have completed the design of the program part in the project, which can be connected to Alibaba Cloud's IoT management platform to achieve remote control functions. See the project attachment relay-01.zip.
      The engineering attachment esp-01s-blink.ino has updated the routine for connecting Xiaoai classmates through Dian Deng Technology to achieve voice control. You can change it to your own Dian Deng Technology registered device key and burn it.