DESCRIPTION
An affordable, compact IoT relay module that allows you to control appliances remotely over the internet.
FEATURES
Primary Processor: ESP-01 or ESP-01S Wi-Fi module (based on the ESP8266 SoC).
Transmission Distance: Up to 400 meters in an open environment.
Safety & Feedback: Features a PC817 optoisolator to protect the ESP-01 from high-voltage spikes, plus LED indicators for power and relay status.
Programming/Modes: Works with Arduino IDE, Lua, and various smart home apps.
APPLICATIONS
Smart Home Automation: Remote control of lighting, ceiling fans, heaters, and garage doors through smartphone apps or voice assistants.
IoT Prototyping (Arduino/Raspberry Pi): Acts as an IoT bridge for your DIY projects, offloading Wi-Fi networking tasks from your main Arduino or microprocessor.
Industrial Monitoring & Management: Short-distance replacement of signal cables to safely manage machinery and monitor equipment in a localized network.
Smart Agriculture/Sensors: When combined with a sensor (like a DHT11), it functions as a remote telemetry node to trigger automated watering systems or fans based on environmental triggers.
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