The ESP8266 WiFi 5V 1 Channel Relay Module uses an ESP8266 WiFi module and micro-controllers to enable wireless control of the relay within the LAN. Commands are sent via a mobile phone app to control the relay wirelessly.
ESP8266 WiFi module
Relay
Do not power off the module after configuring it as some parameters may not be saved.
Avoid incorrect wiring of the power input and serial debug pins.
Do not exceed the relay's maximum switching voltage and current ratings.
Select the appropriate WiFi module mode of operation (STA, AP, STA + AP) based on the desired functionality.
Use serial debugging software and USB to TTL module to configure the WiFi module by sending AT commands.
Ensure the module is powered properly with 5V input and correct pin connections.
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