Ai Thinker ESP-01S ESP8266 WiFi Module
Ai Thinker ESP-01S ESP8266 WiFi Module
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Looking to buy Ai Thinker ESP-01S ESP8266 WiFi Module at the best price in India? Tech Depot India offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
Add wireless connectivity to any microcontroller project with the Ai Thinker ESP-01S, a compact and reliable WiFi module powered by the ESP8266 chipset. This tiny yet powerful module enables IoT applications, remote control, and cloud communication with minimal wiring and cost. Available now at Tech Depot India, Bengaluru, with fast shipping and full technical support.
Specifications
| Module | Ai Thinker ESP-01S |
| Chipset | ESP8266EX |
| Operating Voltage | 3.3V DC |
| WiFi Standard | IEEE 802.11 b/g/n (2.4 GHz) |
| Flash Memory | 1 MB (8 Mbit) |
| GPIO Pins | 2 (GPIO0, GPIO2) |
| Communication Interface | UART (TX/RX) at 115200 baud default |
| Antenna | Onboard PCB Antenna |
| WiFi Modes | Station (STA), Access Point (AP), STA+AP |
| Security Protocols | WPA/WPA2-PSK |
| Processor | Tensilica L106 32-bit RISC, 80 MHz (up to 160 MHz) |
| Operating Temperature | -40 degreesC to +125 degreesC |
| Pin Count | 8-pin (2x4 header) |
| Dimensions | Approx. 24.75 mm x 14.5 mm |
| Firmware | Pre-loaded with AT command firmware |
| Programmable | Yes - via Arduino IDE, MicroPython, Lua (NodeMCU), or AT commands |
| Type | WiFi Module / IoT Component |
| Origin | Original Ai Thinker - Authentic |
Why Choose Ai Thinker ESP-01S ESP8266 WiFi Module?
100% Authentic
GST Invoice - A GST invoice is included with every order.
Expert Support - Dedicated technical help on WhatsApp and email.
Pan-India Delivery - Shipped across Bengaluru, Delhi NCR, Hyderabad and all of India.
Trusted by Makers - Used by students, hobbyists and professionals nationwide.
Key Features of Ai Thinker ESP-01S ESP8266 WiFi Module
- Full WiFi Connectivity: Supports 802.11 b/g/n with Station, Access Point, and combined modes for flexible network configurations.
- Upgraded 1 MB Flash: The ESP-01S features double the flash memory compared to the original ESP-01, allowing more complex firmware and OTA update capability.
- Ultra-Compact Form Factor: Measures just 24.75 x 14.5 mm, making it easy to embed into space-constrained designs and breadboard prototypes.
- Simple UART Interface: Communicates with Arduino, STM32, Raspberry Pi, and other microcontrollers via standard serial TX/RX lines.
- AT Command Ready: Ships with AT firmware pre-loaded, so you can start sending WiFi commands immediately without any programming.
- Arduino IDE Compatible: Flash custom firmware using the Arduino IDE with the ESP8266 board package for full standalone operation.
- Low Power Modes: Supports deep sleep mode drawing as low as ~20 uA, ideal for battery-powered IoT sensor nodes.
- TCP/UDP Support: Built-in TCP/IP stack enables direct HTTP requests, MQTT communication, and socket-based data transfer.
- Onboard PCB Antenna: No external antenna required - provides reliable wireless range for typical indoor IoT applications.
- Blue LED Indicator: Onboard LED connected to GPIO2 for easy status indication and debugging.
- Most affordable way to add WiFi to any existing microcontroller project
- Works seamlessly with popular IoT platforms including Blynk, ThingSpeak, Firebase, AWS IoT, and Home Assistant
- Can function as a standalone microcontroller or as a WiFi co-processor for another MCU
Pin Configuration
| VCC | 3.3V Power Supply (do NOT connect to 5V) |
| GND | Ground |
| TX | UART Transmit (connect to MCU RX) |
| RX | UART Receive (connect to MCU TX) |
| GPIO0 | General Purpose I/O / Flash Mode Select (pull LOW for programming) |
| GPIO2 | General Purpose I/O / Connected to onboard blue LED |
Frequently Asked Questions
Is technical support available?
Yes, responsive support via email and WhatsApp for setup, troubleshooting, and application guidance.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Customer Support
Email: techdepotindia@gmail.com
WhatsApp: Available for setup and troubleshooting help
Order your Ai Thinker ESP-01S ESP8266 WiFi Module today and start building your next project.
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Related: Browse more from our Microcontrollers collection, or see all products at Tech Depot India.