{"product_id":"ai-thinker-esp-01s-esp8266-wifi-module","title":"Ai Thinker ESP-01S ESP8266 WiFi Module","description":"\u003cmeta name=\"description\" content=\"Buy Ai Thinker ESP01S ESP8266 WiFi Module online in India at best price from The Engineer Store, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\u003ch1\u003eAi Thinker ESP-01S ESP8266 WiFi Module\u003c\/h1\u003e\n\u003cp\u003eAdd 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 The Engineer Store, Bengaluru, with fast shipping and full technical support.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule\u003c\/td\u003e\n\u003ctd\u003eAi Thinker ESP-01S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChipset\u003c\/td\u003e\n\u003ctd\u003eESP8266EX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiFi Standard\u003c\/td\u003e\n\u003ctd\u003eIEEE 802.11 b\/g\/n (2.4 GHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlash Memory\u003c\/td\u003e\n\u003ctd\u003e1 MB (8 Mbit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPIO Pins\u003c\/td\u003e\n\u003ctd\u003e2 (GPIO0, GPIO2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eUART (TX\/RX) at 115200 baud default\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAntenna\u003c\/td\u003e\n\u003ctd\u003eOnboard PCB Antenna\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiFi Modes\u003c\/td\u003e\n\u003ctd\u003eStation (STA), Access Point (AP), STA+AP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecurity Protocols\u003c\/td\u003e\n\u003ctd\u003eWPA\/WPA2-PSK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor\u003c\/td\u003e\n\u003ctd\u003eTensilica L106 32-bit RISC, 80 MHz (up to 160 MHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 degreesC to +125 degreesC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin Count\u003c\/td\u003e\n\u003ctd\u003e8-pin (2x4 header)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eApprox. 24.75 mm x 14.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFirmware\u003c\/td\u003e\n\u003ctd\u003ePre-loaded with AT command firmware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgrammable\u003c\/td\u003e\n\u003ctd\u003eYes - via Arduino IDE, MicroPython, Lua (NodeMCU), or AT commands\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eWiFi Module \/ IoT Component\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal Ai Thinker - Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7-day warranty on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003eEmail \u0026amp; WhatsApp 24\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull WiFi Connectivity:\u003c\/strong\u003e Supports 802.11 b\/g\/n with Station, Access Point, and combined modes for flexible network configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpgraded 1 MB Flash:\u003c\/strong\u003e The ESP-01S features double the flash memory compared to the original ESP-01, allowing more complex firmware and OTA update capability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Compact Form Factor:\u003c\/strong\u003e Measures just 24.75 x 14.5 mm, making it easy to embed into space-constrained designs and breadboard prototypes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple UART Interface:\u003c\/strong\u003e Communicates with Arduino, STM32, Raspberry Pi, and other microcontrollers via standard serial TX\/RX lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAT Command Ready:\u003c\/strong\u003e Ships with AT firmware pre-loaded, so you can start sending WiFi commands immediately without any programming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino IDE Compatible:\u003c\/strong\u003e Flash custom firmware using the Arduino IDE with the ESP8266 board package for full standalone operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Power Modes:\u003c\/strong\u003e Supports deep sleep mode drawing as low as ~20 uA, ideal for battery-powered IoT sensor nodes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTCP\/UDP Support:\u003c\/strong\u003e Built-in TCP\/IP stack enables direct HTTP requests, MQTT communication, and socket-based data transfer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOnboard PCB Antenna:\u003c\/strong\u003e No external antenna required - provides reliable wireless range for typical indoor IoT applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlue LED Indicator:\u003c\/strong\u003e Onboard LED connected to GPIO2 for easy status indication and debugging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the ESP-01S?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e100% authentic Ai Thinker module sourced from authorized distributors\u003c\/li\u003e\n\u003cli\u003eMost affordable way to add WiFi to any existing microcontroller project\u003c\/li\u003e\n\u003cli\u003eMassive community support with thousands of tutorials, libraries, and example projects available online\u003c\/li\u003e\n\u003cli\u003eWorks seamlessly with popular IoT platforms including Blynk, ThingSpeak, Firebase, AWS IoT, and Home Assistant\u003c\/li\u003e\n\u003cli\u003eCan function as a standalone microcontroller or as a WiFi co-processor for another MCU\u003c\/li\u003e\n\u003cli\u003e1-5 day shipping, 7-8 day delivery across India from our Bengaluru warehouse\u003c\/li\u003e\n\u003cli\u003eExpert technical support included with every purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePin Configuration\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eVCC\u003c\/td\u003e\n\u003ctd\u003e3.3V Power Supply (do NOT connect to 5V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003ctd\u003eGround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTX\u003c\/td\u003e\n\u003ctd\u003eUART Transmit (connect to MCU RX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRX\u003c\/td\u003e\n\u003ctd\u003eUART Receive (connect to MCU TX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPIO0\u003c\/td\u003e\n\u003ctd\u003eGeneral Purpose I\/O \/ Flash Mode Select (pull LOW for programming)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPIO2\u003c\/td\u003e\n\u003ctd\u003eGeneral Purpose I\/O \/ Connected to onboard blue LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eProducts ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs technical support available?\u003c\/summary\u003e\n\u003cp\u003eYes, 24\/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return policy?\u003c\/summary\u003e\n\u003cp\u003e7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003ch2\u003eBuy Ai Thinker ESP-01S ESP8266 WiFi Module Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003eAi Thinker ESP-01S ESP8266 WiFi Module\u003c\/strong\u003e online at \u003ca href=\"https:\/\/theengineerstore.in\"\u003eThe Engineer Store\u003c\/a\u003e - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003eAi Thinker ESP-01S ESP8266 WiFi Module\u003c\/strong\u003e with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.\u003c\/p\u003e\n\u003cp\u003eLooking to buy \u003cstrong\u003eAi Thinker ESP-01S ESP8266 WiFi Module\u003c\/strong\u003e at the best price in India? The Engineer Store 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.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":43720274313379,"sku":"TES-EV2335","price":583.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/4479\/7091\/products\/1691486712351-0a0b3c00f0c64fc2-152436143B24E4D3A6E6609F69D8CEAC.jpg?v=1699528728","url":"https:\/\/www.theengineerstore.in\/or\/products\/ai-thinker-esp-01s-esp8266-wifi-module","provider":"The Engineer Store","version":"1.0","type":"link"}