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Rp13.800
ESP8266 ESP-01S wifi Relay Switch Shield Module | Arduino IoT
Rp13.800
Core Module SpecificationsWi-Fi & MCU
Wi-Fi Module: Uses ESP8266 ESP-01S (can also accept ESP-01) — 2.4 GHz 802.11 b/g/n Wi-Fi.
MCU: Tensilica L106 32-bit RISC @ 80 MHz (ESP8266EX).
Wi-Fi Modes: AP / STA / AP+STA.
Control Interfaces: Wi-Fi control via AT/LUA/firmware (UART for programming).
Power & Dimensions
Supply Voltage: Typically DC 5 V for the relay board (some variants can accept 5 – 12 V powering the onboard regulator).
ESP-01S Logic Voltage: 3.3 V (module-level only; the relay board has level shifting).
Operating Current: ~≥ 250 mA typical (depends on Wi-Fi activity and relay drive).
Module Size: ~37 × 25 mm (compact shield).
Relay Output
Type: Single-channel mechanical relay.
Load Ratings:
10 A @ 250 V AC (AC mains).
10 A @ 30 V DC (DC loads).
Contact Function: Commonly NO/NC (Normally Open/Normally Closed) pads.
Relay Life: Rated for many switching cycles (often ~100 000 cycles typical).
Features & Connectivity
Wireless Control: Control relay via Wi-Fi — mobile app or custom firmware.
AP Mode for Direct Control: Can create its own Wi-Fi network.
Firmware Support: Supports Arduino IDE upload, AT commands, LUA scripts.
LED Indicators: Some modules include LEDs for power/relay status.
Reset/Button: Many variants include a reset/test button.
Typical Use Cases
Smart home Wi-Fi light switches and appliance controls.
IoT automation controllers (fans, pumps, lamps).
Remote relay switching from smartphone/web interfaces.
DIY smart devices using custom firmware (Tasmota, ESP-Easy, Mongoose OS).
️ Notes & Considerations
ESP-01S firmware: You can reprogram the ESP-01S with your own firmware (Arduino, NodeMCU/LUA).
Level shifting: Ensure proper logic level conversion if interfaced to 5 V microcontrollers.
Safety: When switching mains AC loads, ensure proper insulation and safety precautions.
Power Supply: Provide a stable 5 V supply capable of ≥500 mA to avoid Wi-Fi brown-outs.
Wi-Fi Module: Uses ESP8266 ESP-01S (can also accept ESP-01) — 2.4 GHz 802.11 b/g/n Wi-Fi.
MCU: Tensilica L106 32-bit RISC @ 80 MHz (ESP8266EX).
Wi-Fi Modes: AP / STA / AP+STA.
Control Interfaces: Wi-Fi control via AT/LUA/firmware (UART for programming).
Power & Dimensions
Supply Voltage: Typically DC 5 V for the relay board (some variants can accept 5 – 12 V powering the onboard regulator).
ESP-01S Logic Voltage: 3.3 V (module-level only; the relay board has level shifting).
Operating Current: ~≥ 250 mA typical (depends on Wi-Fi activity and relay drive).
Module Size: ~37 × 25 mm (compact shield).
Relay Output
Type: Single-channel mechanical relay.
Load Ratings:
10 A @ 250 V AC (AC mains).
10 A @ 30 V DC (DC loads).
Contact Function: Commonly NO/NC (Normally Open/Normally Closed) pads.
Relay Life: Rated for many switching cycles (often ~100 000 cycles typical).
Features & Connectivity
Wireless Control: Control relay via Wi-Fi — mobile app or custom firmware.
AP Mode for Direct Control: Can create its own Wi-Fi network.
Firmware Support: Supports Arduino IDE upload, AT commands, LUA scripts.
LED Indicators: Some modules include LEDs for power/relay status.
Reset/Button: Many variants include a reset/test button.
Typical Use Cases
Smart home Wi-Fi light switches and appliance controls.
IoT automation controllers (fans, pumps, lamps).
Remote relay switching from smartphone/web interfaces.
DIY smart devices using custom firmware (Tasmota, ESP-Easy, Mongoose OS).
️ Notes & Considerations
ESP-01S firmware: You can reprogram the ESP-01S with your own firmware (Arduino, NodeMCU/LUA).
Level shifting: Ensure proper logic level conversion if interfaced to 5 V microcontrollers.
Safety: When switching mains AC loads, ensure proper insulation and safety precautions.
Power Supply: Provide a stable 5 V supply capable of ≥500 mA to avoid Wi-Fi brown-outs.
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