ESP8266 ESP-01S 5V WiFi Relay Module – Smart Home DIY Switch
ESP8266 ESP-01S 5V WiFi Relay Module – Smart Home DIY Switch
ESP8266 ESP-01S 5V WiFi Relay Module – Wireless Remote Control Switch for Smart Home & IoT Projects
Take full control of your smart home or DIY automation project with this compact and powerful ESP8266 ESP-01S WiFi Relay Module. Designed for makers, hobbyists, and electronics enthusiasts, this plug-and-play relay board lets you wirelessly control electrical devices from anywhere using your smartphone or smart device — no complex wiring required.
Key Features
- High-Load Relay Switching: Equipped with an SRD-3VDC-SL-C electromagnetic relay supporting up to 10A 250VAC / 30VDC load capacity — safely handles both low-power and high-power electrical devices with reliable on/off control.
- Seamless WiFi Connectivity: Features a high-performance ESP-01 WiFi module with gold-plated connection pins and 2.4GHz wireless support, enabling remote IoT control from virtually anywhere without tangled wiring.
- Durable Flame-Retardant PCB: Built on a thickened flame-retardant fiberglass PCB substrate that resists short circuits, overheating, and physical wear — built for long-term, frequent use in testing and DIY builds.
- Plug-and-Play Assembly: Pre-soldered with standard pin sockets and green screw terminals so you can get started immediately. No complicated soldering — perfect for beginners and seasoned electronics enthusiasts alike.
- Wide Microcontroller Compatibility: Built-in high-precision voltage regulator adapts to 3V DC input, making it compatible with Raspberry Pi and most common microcontroller boards to reduce extra power supply costs.
Specifications
| Module Operating Voltage | DC 5V |
| Relay Load Capacity | 10A 250VAC / 10A 125VAC / 10A 30VDC / 10A 28VDC |
| WiFi Standard | 2.4GHz (IEEE 802.11 b/g/n) |
| PCB Material | Flame-Retardant Fiberglass |
| Connection Pins | Gold-Plated |
| Quantity | 1 Piece |
| Country of Origin | Made in Mainland China |
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Frequently Asked Questions
Q: What microcontrollers are compatible with the ESP8266 ESP-01S WiFi Relay Module?
A: This WiFi relay module is compatible with a wide range of popular microcontrollers including Raspberry Pi and most standard Arduino-compatible boards. Its built-in high-precision voltage regulator ensures smooth operation at 3V DC input, minimizing the need for additional power components in your DIY project.
Q: Can I control this relay module remotely over the internet?
A: Yes! The onboard ESP-01 WiFi module supports 2.4GHz wireless connectivity, allowing you to remotely control connected electrical devices from anywhere via a smartphone app or smart home platform — ideal for IoT automation projects.
Q: Is this relay module suitable for beginners in electronics?
A: Absolutely. The module comes pre-soldered with standard pin sockets and green screw terminals, making it a true plug-and-play experience. No advanced soldering skills are needed, so beginners can start building their smart home or automation project right away.
Q: What is the maximum load this relay can handle?
A: The SRD-3VDC-SL-C relay on this board supports up to 10A at 250VAC, 10A at 125VAC, 10A at 30VDC, and 10A at 28VDC — making it capable of switching both low-power and higher-power electrical loads safely and reliably.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.