{"product_id":"nodemcu-v2-1-esp8266-iot-development-board","title":"NodeMCU V2.1 ESP8266 IoT Development Board","description":"\u003ch2\u003eNodeMCU V2.1 ESP8266 IoT Development Board\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eNodeMCU V2.1\u003c\/strong\u003e is a refined iteration of the NodeMCU V2 platform, powered by the \u003cstrong\u003eESP8266 ESP-12E\u003c\/strong\u003e module with a \u003cstrong\u003eCP2102 USB-to-UART\u003c\/strong\u003e bridge. It offers a compact design, reliable serial communication, and full compatibility with the ESP8266 ecosystem — making it an excellent choice for IoT prototyping, wireless sensor networks, and smart home projects.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicrocontroller:\u003c\/strong\u003e ESP8266 ESP-12E\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-to-UART:\u003c\/strong\u003e CP2102 (stable, low-latency serial communication)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiFi:\u003c\/strong\u003e 802.11 b\/g\/n (2.4 GHz) built-in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClock Speed:\u003c\/strong\u003e 80 MHz \/ 160 MHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlash Memory:\u003c\/strong\u003e 4 MB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGPIO Pins:\u003c\/strong\u003e 13 digital I\/O (3.3V logic)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog Input:\u003c\/strong\u003e 1 × ADC (0–1V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 3.3V (onboard regulator, 5V via USB)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Connector:\u003c\/strong\u003e Micro USB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoard Size:\u003c\/strong\u003e 49mm × 24mm (compact form factor)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eV2.1 Highlights\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eImproved PCB layout over original V2 for better signal integrity\u003c\/li\u003e\n\u003cli\u003eUses \u003cstrong\u003eCP2102\u003c\/strong\u003e for reliable and stable USB-to-serial communication\u003c\/li\u003e\n\u003cli\u003eBreadboard-friendly narrow form factor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWiFi sensor nodes (temperature, humidity, air quality)\u003c\/li\u003e\n\u003cli\u003eHome automation and smart switching\u003c\/li\u003e\n\u003cli\u003eMQTT-based IoT communication\u003c\/li\u003e\n\u003cli\u003eWeb servers and REST API clients\u003c\/li\u003e\n\u003cli\u003eESPHome \/ Home Assistant \/ Tasmota integrations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eProgramming \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino IDE\u003c\/strong\u003e with ESP8266 board package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLua scripting\u003c\/strong\u003e via NodeMCU firmware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicroPython\u003c\/strong\u003e support\u003c\/li\u003e\n\u003cli\u003eCompatible with \u003cstrong\u003eESPHome\u003c\/strong\u003e, \u003cstrong\u003eTasmota\u003c\/strong\u003e, and \u003cstrong\u003eHome Assistant\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Includes\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × NodeMCU V2.1 ESP8266 IoT Development Board\u003c\/li\u003e\u003c\/ul\u003e","brand":"MCU Store","offers":[{"title":"Default Title","offer_id":47196840951980,"sku":null,"price":0.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/0214\/4940\/files\/NodemcuV2.1ESP8266BasedIOT.jpg?v=1789283235","url":"https:\/\/www.mcustore.com\/products\/nodemcu-v2-1-esp8266-iot-development-board","provider":"My Store","version":"1.0","type":"link"}