{"product_id":"ai-thinker-esp-12s-esp8266-serial-wifi-module","title":"Ai Thinker ESP-12S ESP8266 Serial WiFi Module","description":"\u003cmeta name=\"description\" content=\"Buy Ai Thinker ESP12S ESP8266 Serial 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-12S ESP8266 Serial WiFi Module\u003c\/h1\u003e\n\u003cp\u003eAdd reliable, compact WiFi connectivity to your embedded projects with the Ai Thinker ESP-12S - an enhanced version of the popular ESP-12 series. Built around the powerful ESP8266EX SoC, this module features improved RF shielding, an optimized antenna design, and a robust metal enclosure for superior wireless performance. Ideal for IoT devices, home automation, smart sensors, and any application requiring seamless 802.11 b\/g\/n connectivity. Available at The Engineer Store, Bengaluru with fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAi-Thinker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eESP-12S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCore Chipset\u003c\/td\u003e\n\u003ctd\u003eESP8266EX (Tensilica L106 32-bit RISC processor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Frequency\u003c\/td\u003e\n\u003ctd\u003e80 MHz (up to 160 MHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlash Memory\u003c\/td\u003e\n\u003ctd\u003e4 MB (32 Mbit) SPI Flash\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\u003eWiFi Modes\u003c\/td\u003e\n\u003ctd\u003eStation, SoftAP, Station + SoftAP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecurity Protocols\u003c\/td\u003e\n\u003ctd\u003eWPA \/ WPA2 \/ WEP \/ Open\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAntenna\u003c\/td\u003e\n\u003ctd\u003eOnboard PCB trace antenna (enhanced design)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPIO Pins\u003c\/td\u003e\n\u003ctd\u003e11 GPIOs (active, active-low, active-high available)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eADC\u003c\/td\u003e\n\u003ctd\u003e1-channel 10-bit ADC (0-1V input range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interfaces\u003c\/td\u003e\n\u003ctd\u003eUART, SPI, I2C, I2S, PWM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUART Baud Rate\u003c\/td\u003e\n\u003ctd\u003eDefault 115200 bps (configurable up to 4.5 Mbps)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e3.0V - 3.6V DC (3.3V typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Current\u003c\/td\u003e\n\u003ctd\u003e~80 mA average (transmit peak ~170 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeep Sleep Current\u003c\/td\u003e\n\u003ctd\u003e~20 uA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003e+20 dBm (802.11b mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReceiver Sensitivity\u003c\/td\u003e\n\u003ctd\u003e-91 dBm (11 Mbps, 802.11b)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 degreesC to +85 degreesC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Dimensions\u003c\/td\u003e\n\u003ctd\u003e24 mm x 16 mm x 3 mm (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePad Pitch\u003c\/td\u003e\n\u003ctd\u003e2.0 mm (castellated half-hole pads for SMD or through-hole)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShielding\u003c\/td\u003e\n\u003ctd\u003eMetal RF shielding can for improved EMI performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFirmware Support\u003c\/td\u003e\n\u003ctd\u003eAT Command firmware (factory default), Arduino Core, MicroPython, NodeMCU Lua, ESP-IDF compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eFCC, CE, RoHS compliant\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 Technical Support\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\u003eEnhanced ESP-12 Design:\u003c\/strong\u003e The ESP-12S is Ai-Thinker's improved revision with better antenna matching, optimized GPIO pull-up\/pull-down resistors built in, and removal of unused pins - resulting in more reliable boot-up and fewer external component requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePowerful ESP8266EX SoC:\u003c\/strong\u003e 32-bit Tensilica processor running at 80\/160 MHz with full TCP\/IP stack, capable of running complex application logic alongside WiFi communication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 MB Onboard Flash:\u003c\/strong\u003e Generous flash storage supports OTA (Over-The-Air) firmware updates, SPIFFS\/LittleFS file systems, and large application binaries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Engineer Store WiFi Performance:\u003c\/strong\u003e +20 dBm transmit power and -91 dBm receive sensitivity deliver reliable wireless range, enhanced by the improved onboard PCB antenna and metal shielding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Low Deep Sleep:\u003c\/strong\u003e ~20 uA deep sleep current makes it ideal for battery-powered IoT sensors and remote monitoring applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile I\/O:\u003c\/strong\u003e 11 GPIO pins with support for UART, SPI, I2C, I2S, PWM, and a 10-bit ADC channel - enough for most sensor and actuator interfacing needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Solderable:\u003c\/strong\u003e Tiny 24x16 mm footprint with castellated edge pads allows easy SMD reflow soldering or manual through-hole adapter mounting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad Ecosystem Compatibility:\u003c\/strong\u003e Program with Arduino IDE, PlatformIO, MicroPython, NodeMCU Lua, or Espressif's native\u003c\/li\u003e\n\u003c\/ul\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-12S ESP8266 Serial WiFi Module Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003eAi Thinker ESP-12S ESP8266 Serial 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-12S ESP8266 Serial 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-12S ESP8266 Serial 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":43720273756323,"sku":"TES-EV2330","price":583.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/4479\/7091\/products\/1691486850153-0a0b3c00f0c64fc2-620CC2C85FBEB2CA8199A0467ECE8799.jpg?v=1699528709","url":"https:\/\/www.theengineerstore.in\/zh-hant\/products\/ai-thinker-esp-12s-esp8266-serial-wifi-module","provider":"The Engineer Store","version":"1.0","type":"link"}