Attributes

Brand	-
Category	Electronic Components / Maker DIY / Development Boards & Control Boards
Origin	-
Microcontroller	ESP8266EX
Flash Memory	4MB
Operating Voltage	3.3V
Input Voltage	5V via Micro USB
Digital I/O Pins	11
Analog Input Pins	1 (A0)
WiFi Standard	802.11 b/g/n
CPU Frequency	80MHz / 160MHz
USB Connector	Micro USB
Board Size	34mm x 25mm

5 reviews

Anonymous

Mar 24, 2026

Rating: 3/5

WiFi range is average

Does the job but range could be better through walls. Good for close proximity projects.

Anonymous

Feb 17, 2026

Rating: 5/5

Easy to setup

Uploaded code in minutes. Great for beginners looking to get into ESP8266 development.

Anonymous

Jan 26, 2026

Rating: 4/5

Good value board

Great price point. The pins are a bit tight for breadboards but overall solid performance.

Anonymous

Jan 24, 2026

Rating: 5/5

Perfect for IoT projects

Works flawlessly with Arduino IDE. Setup was quick and the WiFi connection is stable.

Anonymous

Jan 21, 2026

Rating: 5/5

Highly recommended

Stable connection and fast processing. I have bought five of these for my home automation.

5 FAQ

Q: Are headers pre-soldered?

A: No, headers are not included. You will need to solder them separately.

Q: Can it act as a web server?

A: Yes, the ESP8266 supports hosting a simple web server directly.

Q: What is the max current per pin?

A: Typically 12mA is recommended per GPIO pin to ensure stability.

Q: Is 5V tolerant?

A: No, GPIO pins are 3.3V logic level. Do not connect 5V directly to pins.

Q: Does this work with Arduino IDE?

A: Yes, you need to install the ESP8266 board manager package within the IDE.

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