The ESP-01S ESP8266 WiFi Module is a self-contained SOC with integrated TCP/IP protocol stack that can give any microcontroller access to your WiFi network. The ESP8266 is capable of either hosting an application or offloading all Wi-Fi networking functions from another application processor. Each ESP-01S ESP8266 module comes pre-programmed with an AT command set firmware, meaning, you can simply hook this up to your Arduino device and get about as much WiFi-ability as a WiFi Shield offers (and that’s just out of the box)! The ESP-01S ESP8266 module is an extremely cost-effective board with a huge, and ever-growing, community.
This module has a powerful enough on-board processing and storage capability that allows it to be integrated with the sensors and other application-specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry, including the front-end module, is designed to occupy minimal PCB area. The ESP8266 supports APSD for VoIP applications and Bluetooth co-existence interfaces, it contains a self-calibrated RF allowing it to work under all operating conditions and requires no external RF parts.
Note: Product image may vary from actual product in terms of IC labels
Features:
- 1MB (8Mbit) Flash size.
- Very competitive price
- AP, STA, AP+STA modes available.
- Very simple AT commands, easy to use.
- Internal LWIP interface.
- Four pins interface, VCC-3V3, GND, TXD, and RXD. Two extra GPIOs can use.
- AT commands firmware. New IC ESP8266ex
Package includes:
Technical Specifications
| Model | ESP-01S |
|---|---|
| Interface / Protocol | WiFi |
| SKU | AI1698 |
| Weight | 0.0 kg |
| Availability | In Stock |
Applications & Use Cases
The Ai Thinker ESP-01S ESP8266 WiFi Module is a versatile ai thinker esp modules used across a wide range of applications including WiFi-enabled IoT devices, smart home sensors, web servers, mesh networks, and wireless data logging.
Common use cases:
- Connecting an Arduino project to WiFi
- Building a smart plug or switch
- Creating a wireless sensor network
This product is ideal for IoT developers, home automation enthusiasts, and embedded engineers.
Technical Tip: ESP32 supports both WiFi and Bluetooth. ESP8266 is WiFi-only but more affordable. Both are programmable via Arduino IDE or ESP-IDF.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components





Ayush Desai (verified owner) –
Decent Ai Thinker ESP-01S ESP8266 WiFi. Had to install CP2102 drivers but works fine after that.
Yogesh Menon (verified owner) –
Outstanding Ai Thinker ESP-01S ESP8266 WiFi! Programmed it with Arduino IDE. All features work as documented.
Karan Rathore (verified owner) –
Perfect for my IoT project. This Ai Thinker ESP-01S ESP8266 WiFi has excellent WiFi performance.
Rohan Modi (verified owner) –
Decent Ai Thinker ESP-01S ESP8266 WiFi. Had to install CP2102 drivers but works fine after that.
Atharv Modi (verified owner) –
Great quality Ai Thinker ESP-01S ESP8266 WiFi. Flashed with ESPHome and it works beautifully.
Eshan Reddy –
Good Ai Thinker ESP-01S ESP8266 WiFi. WiFi works well. Sometimes needs a reset but overall solid.
Ankit Reddy –
Outstanding Ai Thinker ESP-01S ESP8266 WiFi! Programmed it with Arduino IDE. All features work as documented.
Aman Jain (verified owner) –
Superb Ai Thinker ESP-01S ESP8266 WiFi! Using it for my weather monitoring station. WiFi range is impressive.
Jai Dhawan (verified owner) –
Nice Ai Thinker ESP-01S ESP8266 WiFi for IoT prototyping. Breadboard compatible which is a plus.
Nikhil Chopra (verified owner) –
Outstanding Ai Thinker ESP-01S ESP8266 WiFi! Programmed it with Arduino IDE. All features work as documented.
Pooja Sethi (verified owner) –
Great quality Ai Thinker ESP-01S ESP8266 WiFi. Flashed with ESPHome and it works beautifully.
Pallavi Trivedi (verified owner) –
Outstanding Ai Thinker ESP-01S ESP8266 WiFi! Programmed it with Arduino IDE. All features work as documented.
Siddharth Dhawan –
Perfect for my IoT project. This Ai Thinker ESP-01S ESP8266 WiFi has excellent WiFi performance.
Tanmay Pillai (verified owner) –
Excellent for smart home projects. This Ai Thinker ESP-01S ESP8266 WiFi connects reliably to my router.
Tushar Panchal (verified owner) –
Decent Ai Thinker ESP-01S ESP8266 WiFi. Had to install CP2102 drivers but works fine after that.
Akash Joshi (verified owner) –
Excellent Ai Thinker ESP-01S ESP8266 WiFi! WiFi connectivity is strong and stable. Perfect for IoT projects.
Abhishek Banerjee –
Outstanding Ai Thinker ESP-01S ESP8266 WiFi! Programmed it with Arduino IDE. All features work as documented.
Sneha Arora (verified owner) –
Excellent Ai Thinker ESP-01S ESP8266 WiFi! WiFi connectivity is strong and stable. Perfect for IoT projects.
Akshat Kohli (verified owner) –
Perfect for my IoT project. This Ai Thinker ESP-01S ESP8266 WiFi has excellent WiFi performance.
Shubham Shetty (verified owner) –
Perfect for my IoT project. This Ai Thinker ESP-01S ESP8266 WiFi has excellent WiFi performance.
Karan Panchal (verified owner) –
Excellent Ai Thinker ESP-01S ESP8266 WiFi! WiFi connectivity is strong and stable. Perfect for IoT projects.
Vansh Thakur (verified owner) –
Nice Ai Thinker ESP-01S ESP8266 WiFi for IoT prototyping. Breadboard compatible which is a plus.
Pranav Luthra –
Decent Ai Thinker ESP-01S ESP8266 WiFi. Had to install CP2102 drivers but works fine after that.
Sunil Patel –
Good Ai Thinker ESP-01S ESP8266 WiFi. WiFi works well. Sometimes needs a reset but overall solid.
Farhan Shetty –
Good Ai Thinker ESP-01S ESP8266 WiFi. WiFi works well. Sometimes needs a reset but overall solid.
Aarav Nayak (verified owner) –
Excellent for smart home projects. This Ai Thinker ESP-01S ESP8266 WiFi connects reliably to my router.
Ananya Agarwal (verified owner) –
Outstanding Ai Thinker ESP-01S ESP8266 WiFi! Programmed it with Arduino IDE. All features work as documented.
Eshan Mukherjee (verified owner) –
This Ai Thinker ESP-01S ESP8266 WiFi is amazing for home automation. Connected all my smart devices easily.
Sonali Rao (verified owner) –
This Ai Thinker ESP-01S ESP8266 WiFi is amazing for home automation. Connected all my smart devices easily.
Prashant Bhandari –
Outstanding Ai Thinker ESP-01S ESP8266 WiFi! Programmed it with Arduino IDE. All features work as documented.
Deepak Banerjee (verified owner) –
Superb Ai Thinker ESP-01S ESP8266 WiFi! Using it for my weather monitoring station. WiFi range is impressive.
Ojas Luthra (verified owner) –
This Ai Thinker ESP-01S ESP8266 WiFi is a beast for the price. Running a web server on it with no issues.
Sandeep Saini (verified owner) –
Excellent Ai Thinker ESP-01S ESP8266 WiFi! WiFi connectivity is strong and stable. Perfect for IoT projects.
Vivek Dave –
Excellent Ai Thinker ESP-01S ESP8266 WiFi! WiFi connectivity is strong and stable. Perfect for IoT projects.
Gaurav Bose (verified owner) –
Great Ai Thinker ESP-01S ESP8266 WiFi. OTA updates work perfectly. Using 5 of these around my house.
Tarun Mukherjee (verified owner) –
Okay Ai Thinker ESP-01S ESP8266 WiFi. Took time to figure out the pin mapping but functional.
Tejas Choudhury (verified owner) –
Excellent for smart home projects. This Ai Thinker ESP-01S ESP8266 WiFi connects reliably to my router.
Priya Pillai –
Superb Ai Thinker ESP-01S ESP8266 WiFi! Using it for my weather monitoring station. WiFi range is impressive.
Priya Mishra (verified owner) –
Great quality Ai Thinker ESP-01S ESP8266 WiFi. Flashed with ESPHome and it works beautifully.
Zubin Modi (verified owner) –
Outstanding Ai Thinker ESP-01S ESP8266 WiFi! Programmed it with Arduino IDE. All features work as documented.
Mayank Reddy (verified owner) –
This Ai Thinker ESP-01S ESP8266 WiFi is a beast for the price. Running a web server on it with no issues.
Dinesh Luthra –
Good quality Ai Thinker ESP-01S ESP8266 WiFi. Flash memory is sufficient for most projects.
Rahul Thakur (verified owner) –
Nice Ai Thinker ESP-01S ESP8266 WiFi for IoT prototyping. Breadboard compatible which is a plus.
Sandeep Sethi (verified owner) –
Good Ai Thinker ESP-01S ESP8266 WiFi. WiFi works well. Sometimes needs a reset but overall solid.
Ishan Patil (verified owner) –
Nice Ai Thinker ESP-01S ESP8266 WiFi for IoT prototyping. Breadboard compatible which is a plus.
Anjali Kapoor (verified owner) –
Decent Ai Thinker ESP-01S ESP8266 WiFi. Had to install CP2102 drivers but works fine after that.
Parth Bisht (verified owner) –
Good Ai Thinker ESP-01S ESP8266 WiFi. WiFi works well. Sometimes needs a reset but overall solid.
Ankit Gill (verified owner) –
This Ai Thinker ESP-01S ESP8266 WiFi is a beast for the price. Running a web server on it with no issues.
Siddharth Shah (verified owner) –
This Ai Thinker ESP-01S ESP8266 WiFi is amazing for home automation. Connected all my smart devices easily.
Diya Rathore –
Good quality Ai Thinker ESP-01S ESP8266 WiFi. Flash memory is sufficient for most projects.