ESP8266 5V WIFI Relay Smart Home Remote Control Switch

ESP-01S The Main Parameters: Wireless standard: 802.11 b / g / n Frequency range: 2.4GHz~2.5GHz(2400M ~ 2483.5M) Data interface: UART / HSPI / I2C / I2S / IR Remote Contorl / GPIO / PWM Operating voltage: 3.0 ~ 3.6v (Suggest 3.3v) Working current: average 80mA Operating temperature: – 40 degrees to 125 degrees Storage temperature: room temperature Package size: 14.3mm * 24.8mm * 3mm External interface: N / A Wireless network mode: station / softAP / SoftAP + station Security mechanisms: WPA / WPA2 Encryption type: WEP / TKIP / AES Upgrade firmware: local serial port burn, cloud upgrade, host download burn Software development: support customer custom server, provide SDK to customer secondary development Network protocols: IPV4, TCP / UDP / HTTP / FTP User Configuration: AT + instruction set, cloud server, Android / IOS APP GND: GND GPIO2: General purpose IO, internal pull-up GPIO0: Operating mode selection: floating: Flash Boot, operating mode Dropdown: UART DownLoad, download mode RXD: serial port 0 data end RXD VCC: 3.3v, the module power supply RST: External reset pin, low reset, can be left floating or external MCU CH_PD: Chip enable, high enable, low level disable TXD: serial port 0 data end TXD