Description

ESP8266 ESP-01S WiFi Serial Transceiver Module

The ESP8266 ESP-01S WiFi Serial Transceiver Module is one of the most popular and cost-effective solutions for adding wireless communication to your electronics projects. Compact in size but powerful in functionality, this module enables microcontrollers and embedded systems to connect to Wi-Fi networks, making it ideal for Internet of Things (IoT) applications, smart home devices, and wireless data logging projects. Whether you are a beginner experimenting with Arduino or a developer creating advanced IoT systems, the ESP-01S offers a reliable and affordable way to integrate Wi-Fi connectivity into your projects.

🔹 Compact Yet Powerful Design

The ESP-01S module is based on the highly acclaimed ESP8266EX chipset, which provides excellent processing power and Wi-Fi capabilities in a small form factor. Measuring just a few centimeters in size, this module is perfect for projects where space is limited but reliable wireless communication is required. Its small design makes it suitable for wearable devices, embedded sensors, and compact IoT gadgets.

🔹 Easy Serial Communication

One of the standout features of the ESP8266 ESP-01S Wi-Fi module is its UART (serial) interface, which allows easy communication with popular microcontrollers such as Arduino, STM32, or PIC. Using simple AT commands, you can configure the module to connect to Wi-Fi networks, send and receive data, or even host a basic web server. This simplicity makes it highly accessible for beginners and efficient for professionals.

🔹 Reliable Wi-Fi Connectivity

The ESP-01S supports the 802.11 b/g/n standard, ensuring compatibility with most Wi-Fi networks. It can operate as both a client and an access point, giving you flexibility depending on your application. You can connect it to your local Wi-Fi to send sensor data to the cloud or configure it as an access point to allow direct device-to-device communication. Its strong RF performance ensures stable wireless connections for your projects.

🔹 Versatile Applications

The ESP8266 ESP-01S WiFi Serial Transceiver is used in a wide range of applications across DIY electronics, smart home automation, and industrial systems. Some common uses include:

• IoT Devices: Collecting and transmitting sensor data to the cloud.

• Smart Home Projects: Controlling lights, fans, and appliances wirelessly.

• Remote Monitoring: Sending environmental data (temperature, humidity, etc.) to online dashboards.

• Data Logging: Wireless transfer of experimental or lab data.

• Prototyping: Quick and inexpensive way to test Wi-Fi enabled systems.

🔹 Technical Specifications

• Model: ESP8266 ESP-01S WiFi Serial Transceiver Module

• Chipset: ESP8266EX

• Flash Memory: 1 MB

• Interface: UART (3.3V TTL logic)

• Operating Voltage: 3.0 – 3.6V (typically 3.3V)

• Wi-Fi Standard: IEEE 802.11 b/g/n

• Frequency Range: 2.4 GHz – 2.5 GHz

• Operating Modes: Station (STA), Access Point (AP), and Station + AP

• Baud Rate (default): 115200 bps

• GPIO Pins: 2 (for flexible control in custom applications)

• Antenna: Onboard PCB antenna for strong signal reception

• Size: Approx. 24.8mm × 14.3mm

🔹 Benefits of Using ESP-01S Module

• Affordable Wi-Fi Solution: Low-cost module for adding wireless connectivity to any microcontroller.

• Beginner Friendly: Simple AT command set makes it easy to configure.

• Flexible Functionality: Operates as client, server, or both.

• Compact Size: Fits easily into small enclosures and embedded systems.

• Reliable Performance: Stable wireless connection with good range.

🔹 Compatibility with Arduino and Microcontrollers

The ESP8266 ESP-01S works seamlessly with Arduino boards, ESP32, Raspberry Pi, and other microcontrollers. For Arduino users, libraries such as ESP8266WiFi and example sketches make it simple to get started. You can use it to fetch data from APIs, control devices over the internet, or send sensor readings to platforms like Blynk, ThingSpeak, or Home Assistant.

✅ Conclusion

The ESP8266 ESP-01S WiFi Serial Transceiver Module is a compact, versatile, and budget-friendly solution for bringing wireless capabilities to your electronics projects. Its reliable Wi-Fi performance, simple communication protocol, and wide compatibility make it a favorite among makers, students, and professional engineers. Whether you are developing IoT prototypes, smart home devices, or wireless sensor networks, the ESP-01S provides everything you need to connect your project to the world.

Bring your ideas to life with the ESP8266 ESP-01S module and explore endless possibilities in the growing field of IoT and wireless communication.

Data Sheet