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ESP8266-01 + 5V WiFi Relay Module
Control any appliance or device remotely over WiFi with this compact ESP8266-01 paired with a 5V relay module. Ideal for home automation, IoT projects, and smart switching applications, this combo lets you toggle lights, fans, pumps, and more from anywhere using a smartphone or web interface. A must-have for makers building wireless control systems. Premium electronics from The Engineer Store, Bengaluru. Fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| WiFi Module | ESP8266-01 (ESP-01) with onboard antenna |
| Processor | Tensilica L106 32-bit RISC, 80 MHz |
| WiFi Standard | 802.11 b/g/n, 2.4 GHz |
| Flash Memory | 1 MB (8 Mbit) |
| GPIO Pins | 2 (GPIO0, GPIO2) |
| Relay Voltage | 5V DC single-channel relay |
| Relay Load Rating | 10A @ 250V AC / 10A @ 30V DC (max) |
| Relay Trigger | Low-level trigger via ESP8266 GPIO |
| Relay Type | SPDT (NO, NC, COM terminals) |
| Module Supply Voltage | 5V DC (onboard 3.3V regulator for ESP8266) |
| Communication | UART (TX/RX), AT commands or custom firmware |
| Firmware Support | Arduino IDE, NodeMCU (Lua), MicroPython, AT firmware |
| Indicator LEDs | Power LED, relay status LED, ESP8266 activity LED |
| Board Dimensions | Approx. 37 x 25 mm (relay module with ESP-01 socket) |
| Operating Temperature | -20 degreesC to 75 degreesC |
| Type | WiFi Relay / IoT Control Module |
| Origin | Original/Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- WiFi-Enabled Relay Control: Toggle the relay on/off remotely over a local WiFi network or the internet using the ESP8266-01's built-in WiFi capabilities.
- Plug-and-Play Combo: The relay module features a dedicated ESP-01 socket - simply plug in the ESP8266-01 and power with 5V to get started.
- Onboard Voltage Regulator: Built-in 3.3V regulator on the relay board powers the ESP8266-01 directly from the 5V supply, eliminating the need for separate level conversion.
- High-Current Switching: The relay handles up to 10A at 250V AC, suitable for controlling household appliances, solenoid valves, motors, and lighting.
- SPDT Relay Output: Normally Open (NO), Normally Closed (NC), and Common (COM) terminals provide flexible wiring for both on-state and off-state default configurations.
- Arduino IDE Compatible: Program the ESP8266-01 using the familiar Arduino IDE with the ESP8266 board package - extensive libraries and community examples available.
- Compact Form Factor: The small footprint makes it easy to embed inside electrical enclosures, switchboards, or custom housings.
- Optocoupler Isolation: Relay driver circuit includes optocoupler isolation to protect the ESP8266 from relay switching noise and back-EMF.
- Status Indicators: Onboard LEDs show power status and relay state at a glance for easy debugging and monitoring.
- OTA Update Capable: With appropriate firmware, supports over-the-air updates so you can reprogram without physical access.
Why Choose This?
- 100% authentic ESP8266-01 and relay module sourced from trusted suppliers
- 1-5 day shipping, 7-8 day delivery from our Bengaluru warehouse across India
- Expert technical support for wiring, programming, and integration
- Tested and verified before dispatch for reliable out-of-box performance
- Ideal balance of cost, size, and functionality for wireless relay control
Pin Configuration & Connections
| Module Pin / Terminal | Description |
| VCC | 5V DC power input |
| GND | Ground connection |
| COM | Relay Common terminal |
| NO | Normally Open - closes when relay is activated |
| NC | Normally Closed - opens when relay is activated |
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy ESP8266 01 + 5V WiFi Relay Module Online in India
Purchase the ESP8266 01 + 5V WiFi Relay Module online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on ESP8266 01 + 5V WiFi Relay Module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy ESP8266 01 + 5V WiFi Relay Module at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
ESP8266-01 + 5V WiFi Relay Module
Control any appliance or device remotely over WiFi with this compact ESP8266-01 paired with a 5V relay module. Ideal for home automation, IoT projects, and smart switching applications, this combo lets you toggle lights, fans, pumps, and more from anywhere using a smartphone or web interface. A must-have for makers building wireless control systems. Premium electronics from The Engineer Store, Bengaluru. Fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| WiFi Module | ESP8266-01 (ESP-01) with onboard antenna |
| Processor | Tensilica L106 32-bit RISC, 80 MHz |
| WiFi Standard | 802.11 b/g/n, 2.4 GHz |
| Flash Memory | 1 MB (8 Mbit) |
| GPIO Pins | 2 (GPIO0, GPIO2) |
| Relay Voltage | 5V DC single-channel relay |
| Relay Load Rating | 10A @ 250V AC / 10A @ 30V DC (max) |
| Relay Trigger | Low-level trigger via ESP8266 GPIO |
| Relay Type | SPDT (NO, NC, COM terminals) |
| Module Supply Voltage | 5V DC (onboard 3.3V regulator for ESP8266) |
| Communication | UART (TX/RX), AT commands or custom firmware |
| Firmware Support | Arduino IDE, NodeMCU (Lua), MicroPython, AT firmware |
| Indicator LEDs | Power LED, relay status LED, ESP8266 activity LED |
| Board Dimensions | Approx. 37 x 25 mm (relay module with ESP-01 socket) |
| Operating Temperature | -20 degreesC to 75 degreesC |
| Type | WiFi Relay / IoT Control Module |
| Origin | Original/Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- WiFi-Enabled Relay Control: Toggle the relay on/off remotely over a local WiFi network or the internet using the ESP8266-01's built-in WiFi capabilities.
- Plug-and-Play Combo: The relay module features a dedicated ESP-01 socket - simply plug in the ESP8266-01 and power with 5V to get started.
- Onboard Voltage Regulator: Built-in 3.3V regulator on the relay board powers the ESP8266-01 directly from the 5V supply, eliminating the need for separate level conversion.
- High-Current Switching: The relay handles up to 10A at 250V AC, suitable for controlling household appliances, solenoid valves, motors, and lighting.
- SPDT Relay Output: Normally Open (NO), Normally Closed (NC), and Common (COM) terminals provide flexible wiring for both on-state and off-state default configurations.
- Arduino IDE Compatible: Program the ESP8266-01 using the familiar Arduino IDE with the ESP8266 board package - extensive libraries and community examples available.
- Compact Form Factor: The small footprint makes it easy to embed inside electrical enclosures, switchboards, or custom housings.
- Optocoupler Isolation: Relay driver circuit includes optocoupler isolation to protect the ESP8266 from relay switching noise and back-EMF.
- Status Indicators: Onboard LEDs show power status and relay state at a glance for easy debugging and monitoring.
- OTA Update Capable: With appropriate firmware, supports over-the-air updates so you can reprogram without physical access.
Why Choose This?
- 100% authentic ESP8266-01 and relay module sourced from trusted suppliers
- 1-5 day shipping, 7-8 day delivery from our Bengaluru warehouse across India
- Expert technical support for wiring, programming, and integration
- Tested and verified before dispatch for reliable out-of-box performance
- Ideal balance of cost, size, and functionality for wireless relay control
Pin Configuration & Connections
| Module Pin / Terminal | Description |
| VCC | 5V DC power input |
| GND | Ground connection |
| COM | Relay Common terminal |
| NO | Normally Open - closes when relay is activated |
| NC | Normally Closed - opens when relay is activated |
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy ESP8266 01 + 5V WiFi Relay Module Online in India
Purchase the ESP8266 01 + 5V WiFi Relay Module online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on ESP8266 01 + 5V WiFi Relay Module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy ESP8266 01 + 5V WiFi Relay Module at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.