Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Development Boards & Control Boards |
| Origin | - |
| Chipset Model | ESP8266EX |
| Flash Memory Capacity | 1MB (8Mbit) |
| Input Power Supply | 5V DC |
| GPIO Logic Level | 3.3V TTL |
| WiFi Standard | IEEE 802.11 b/g/n |
| WiFi Frequency | 2.4GHz |
| Relay Contact Rating | 10A 250VAC |
| Communication Interface | UART / GPIO |
| Operating Temperature | -40°C to +85°C |
| Package Contents | 1 x ESP8266 Relay Module |
Anonymous
Apr 14, 2026
Rating: 5/5
Perfect for Home Automation
Running Tasmota firmware smoothly. Integrated with Home Assistant without any issues. Highly recommended.
Anonymous
Apr 03, 2026
Rating: 5/5
Great for beginners
Easy to program using Arduino IDE. I got it connected to my home WiFi within minutes. Perfect for learning IoT basics.
Anonymous
Mar 16, 2026
Rating: 4/5
Good value
Relay switching is reliable. Just remember to use a logic level converter if connecting to 5V microcontrollers.
Anonymous
Jan 29, 2026
Rating: 4/5
Solid hardware
Works well but documentation is sparse. You need to know your way around GPIO pins to get the best results.
Anonymous
Jan 19, 2026
Rating: 5/5
Compact design
Fits nicely into small junction boxes. The form factor is ideal for retrofitting existing switches.
Q: What is the standby current?
A: Approximately 70mA in active WiFi connection mode. Deep sleep mode consumes significantly less power.
Q: Does this support 5V Arduino signals?
A: The module power is 5V but logic is 3.3V. Please use a logic level converter for 5V signal lines to avoid damage.
Q: Does it come with headers soldered?
A: Usually shipped unsoldered for flexibility. This allows you to choose straight or right-angle headers based on your project.
Q: Can I use this with MQTT?
A: Yes, it supports MQTT protocols. You can flash custom firmware like Tasmota or ESPEasy to enable this feature.
Q: Is an external antenna required?
A: No, it features an onboard PCB antenna. No external components are needed for standard range operations.
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