5pcs ESP-01S ESP8266 Serial to WiFi Module Wireless Transparent Transmission Industrial Grade Smart Home Internet of Thi

Feature Built in cloud service function means that you can enter the global remote control function with three instructions The READY message is output after power on 1 With free cloud service it can only be used in LAN 2 Support AT command to set the high and low level of IO port3 Support AT command to read IO port level 4 Support AT command to read ADC voltage5 Support AT command upgrade to the latest official version of Essence6 Support AT to set the unit to display the HOST NAME function on the computer 7 The AT command can be executed wirelessly on the network 8 After the subsequent power on is supported the APP control function is directly used Use the official firmware of AI thinker Technology to achieve Convenient development environment free of virtual machines and familiar with Linux system directly developed in the Windows environment saving development time and preempting the market in advance Add AT CLDSTART to start the cloud connection The default parameter is the Ai Cloud cloud platform After executing this command the system will automatically maintain the connection and heartbeat packet of the cloud and reconnect the disconnection The system handles all protocol layers AT CLDSTOP stops the cloud connection Free all system resources related to the cloud AT CLDSEND sends data to the cloud The parameter is the data length After executing this command the system will return and a certain length of data can be sent at this time Data rece