ESP-07S ESP8266 Serial WiFi Module – Industrial Low Power Wireless

The ESP-07S ESP8266 Serial WiFi Module is a compact, high-performance wireless communication module designed for industrial and DIY electronics projects. Built around the powerful ESP8266 chipset, this module delivers reliable serial-to-WiFi connectivity in an ultra-low power footprint — making it ideal for IoT devices, smart home automation, embedded systems, and wireless sensor networks.

Whether you're a hobbyist, engineer, or maker, the ESP-07S is a go-to solution for adding WiFi capability to your microcontroller projects with minimal effort and maximum efficiency.

Key Features

ESP8266 Chipset: Industry-proven processor with integrated TCP/IP networking stack for seamless WiFi connectivity.
Ultra-Low Power Consumption: Optimized power modes make it perfect for battery-operated and energy-sensitive applications.
Serial (UART) Interface: Simple serial communication for easy integration with Arduino, Raspberry Pi, STM32, and other microcontrollers.
Industrial-Grade Reliability: Designed to perform consistently in demanding environments.
External Antenna Connector: Supports an external antenna for extended wireless range and stronger signal strength.
Compact Form Factor: Small footprint makes it easy to embed into tight PCB layouts and project enclosures.
Supports Multiple WiFi Modes: Station, Access Point, and Station+AP modes for flexible network configurations.
AT Command Support: Pre-flashed with AT firmware for quick setup and communication via standard AT commands.

Specifications

Module: ESP-07S
Chipset: ESP8266
Interface: UART (Serial)
WiFi Standard: 802.11 b/g/n
Operating Voltage: 3.0V – 3.6V
Operating Current: Average ~80mA
Transmission Rate: 110–4608000 bps
Frequency Range: 2.4 GHz
Antenna: External antenna connector (IPEX)

What's in the Box

1 × ESP-07S ESP8266 Serial WiFi Module

Great Pairings for Your Electronics Projects

Pair your ESP-07S module with other components from our store to build smarter systems:

GY-BMI160 6DOF Gyroscope & Acceleration Sensor Module – Add motion sensing to your WiFi-connected projects.
Round Aluminum Wire 1mm–3mm | DIY Project Wire – Handy prototyping wire for electronics builds.

Learn more: EPA guidance on lithium-ion battery handling

Frequently Asked Questions

Q: What is the ESP-07S ESP8266 Serial WiFi Module used for?

A: The ESP-07S ESP8266 Serial WiFi Module is used to add wireless internet connectivity to microcontroller-based projects. It is commonly used in IoT applications, smart home automation, wireless sensor nodes, remote monitoring systems, and any embedded project requiring WiFi communication via a simple serial (UART) interface.

Q: Is the ESP-07S compatible with Arduino and Raspberry Pi?

A: Yes! The ESP-07S communicates via a standard UART serial interface, making it compatible with Arduino, Raspberry Pi, STM32, ESP32, and virtually any microcontroller that supports serial communication. It can be programmed directly or controlled using AT commands out of the box.

Q: What makes the ESP-07S different from other ESP8266 modules?

A: The ESP-07S features an external IPEX antenna connector, which allows for a stronger and more reliable WiFi signal compared to modules with onboard antennas. It is also built to industrial-grade standards, offering more stable performance in demanding or commercial applications. Its ultra-low power consumption also makes it a top choice for battery-powered deployments.

Q: Does the ESP-07S come pre-flashed with firmware?

A: Yes, the ESP-07S typically comes pre-flashed with Espressif AT firmware, allowing you to communicate with it using standard AT commands immediately. You can also flash it with custom firmware using the Arduino IDE, MicroPython, or Espressif's official SDK.

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.