{"product_id":"esp8266-esp32-serial-wifi-module-nodemcu-wemos-d1-mini-esp01s-arduino-iot","title":"ESP8266 \/ ESP32 Serial WiFi Module — NodeMCU, Wemos D1 Mini, ESP-01S, for Arduino \u0026 IoT","description":"\u003ch2\u003eESP8266 \/ ESP32 Serial WiFi Wireless Module — NodeMCU, Wemos D1 Mini, ESP-01S\u003c\/h2\u003e\u003cp\u003eThis product line covers the most popular \u003cstrong\u003eESP8266 and ESP32 WiFi modules\u003c\/strong\u003e for Arduino and IoT development. Whether you need a compact ESP-01S for AT command WiFi bridging, a NodeMCU V3 for full standalone development, or a Wemos D1 Mini for compact IoT builds, all variants are fully supported by the Arduino IDE and MicroPython.\u003c\/p\u003e\u003ch3\u003eModule Variants \u0026amp; Key Specs\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModule\u003c\/th\u003e\n\u003cth\u003eChip\u003c\/th\u003e\n\u003cth\u003eFlash\u003c\/th\u003e\n\u003cth\u003eGPIO\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eESP-01S\u003c\/td\u003e\n\u003ctd\u003eESP8266\u003c\/td\u003e\n\u003ctd\u003e1MB\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eAT command WiFi bridge, UART interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNodeMCU V3\u003c\/td\u003e\n\u003ctd\u003eESP8266 (ESP-12E)\u003c\/td\u003e\n\u003ctd\u003e4MB\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003eCH340G USB, breadboard-friendly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWemos D1 Mini\u003c\/td\u003e\n\u003ctd\u003eESP8266\u003c\/td\u003e\n\u003ctd\u003e4MB\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003eCompact, shield ecosystem\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eESP32 DevKit V1\u003c\/td\u003e\n\u003ctd\u003eESP32 dual-core\u003c\/td\u003e\n\u003ctd\u003e4MB\u003c\/td\u003e\n\u003ctd\u003e30+\u003c\/td\u003e\n\u003ctd\u003eWiFi + Bluetooth, 240MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eESP32-CAM\u003c\/td\u003e\n\u003ctd\u003eESP32-S\u003c\/td\u003e\n\u003ctd\u003e4MB\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003eOV2640 camera, microSD slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCommon Specifications (ESP8266)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiFi Standard:\u003c\/strong\u003e 802.11 b\/g\/n, 2.4GHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 3.3V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -40°C to +80°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgramming:\u003c\/strong\u003e Arduino IDE, MicroPython, AT commands\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtocol Support:\u003c\/strong\u003e TCP\/IP, HTTP, MQTT, WebSocket\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Choose ESP8266 \/ ESP32?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eArduino IDE compatible\u003c\/strong\u003e — install ESP8266\/ESP32 board package and start coding\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eBuilt-in WiFi\u003c\/strong\u003e — no external WiFi shield needed\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eLarge community\u003c\/strong\u003e — thousands of libraries and tutorials available\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eLow cost\u003c\/strong\u003e — most affordable WiFi-enabled MCU platform\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eOTA update support\u003c\/strong\u003e — update firmware over WiFi without USB\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIoT sensor data upload to cloud (MQTT, HTTP)\u003c\/li\u003e\n\u003cli\u003eHome automation (smart switch, thermostat, door sensor)\u003c\/li\u003e\n\u003cli\u003eWiFi-controlled LED strips and relays\u003c\/li\u003e\n\u003cli\u003eWeb server on ESP8266 \/ ESP32\u003c\/li\u003e\n\u003cli\u003eESP32-CAM security camera and face detection\u003c\/li\u003e\n\u003cli\u003eAT command WiFi bridge for Arduino Uno \/ Mega\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × ESP8266 or ESP32 WiFi 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