Description
Reviews
| Brand | - |
| Category | Electronic Components Market / Wi-Fi Modules |
| Origin | - |
| Chipset | ESP8266EX |
| Operating Voltage | 3.3V - 5V DC |
| WiFi Standard | IEEE 802.11 b/g/n |
| Max Load Current | 10A |
| Interface Type | UART / GPIO |
| Dimensions | 43mm x 25mm x 15mm |
| Flash Memory | 1MB (8Mbit) |
| Antenna | PCB Onboard |
| Compatibility | Arduino IDE, MQTT, Blynk |
| Certification | CE, FCC, RoHS |
Anonymous
Mar 29, 2026
Rating: 5/5
Best budget WiFi module
Fast shipping and the product quality is top-notch. The soldering points are clean and the component layout is logical.
Anonymous
Mar 27, 2026
Rating: 5/5
Excellent stability
Compared to other generic modules I've tried, this one maintains a much stronger signal through walls. Highly recommended for IoT prototypes.
Anonymous
Mar 15, 2026
Rating: 4/5
Good performance, needs careful wiring
The WiFi range is impressive for such a small board. Just make sure you provide enough current to the VCC pin, or it might reset unexpectedly.
Anonymous
Mar 15, 2026
Rating: 4/5
Great little switch
Works as advertised. The only downside is the pin spacing which requires a breakout board for easy breadboarding, but that's standard for this form factor.
Anonymous
Mar 05, 2026
Rating: 5/5
Reliable and Easy to Program
I flashed this with Tasmota firmware in minutes. It has been running my living room lamp for three months without any disconnects.
Anonymous
Mar 05, 2026
Rating: 5/5
Perfect for Home Automation Projects
This module works flawlessly with my Arduino setup. The connection is stable and the relay switches instantly. Great value for the price.
Q: What is the maximum wattage this relay can handle?
A: The relay is rated for 10A. At 110V, this equals approximately 1100W, and at 220V, it equals 2200W. Please do not exceed these limits for safety.
Q: Can this module be powered directly via USB?
A: No, the ESP8266-01S operates at 3.3V. You will need a voltage regulator or a dedicated USB-to-TTL adapter that supports 3.3V output to power it safely.
Q: Can I use this outdoors?
A: The module itself is not weatherproof. If you plan to use it outdoors, you must enclose it in an IP65-rated waterproof case.
Q: Does it come with pre-installed firmware?
A: It usually comes with basic AT command firmware. For specific smart home applications, we recommend flashing your own preferred firmware.
Q: Is this compatible with Alexa or Google Home?
A: Yes, but not out of the box. You need to flash custom firmware like Tasmota or ESPHome to integrate it with voice assistants via your local network.
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