{"product_id":"nodemcu-esp8266-v3-ch340-wifi-development-board","title":"NodeMCU ESP8266 V3 CH340 WiFi Development Board","description":"\u003ch2\u003eNodeMCU ESP8266 V3 CH340 WiFi Development Board\u003c\/h2\u003e\n\u003cp\u003eThe NodeMCU ESP8266 V3 board is a low-cost WiFi development board for IoT, automation, sensor monitoring, home control, and student electronics projects. It combines an ESP8266\/ESP-12E style WiFi module, CH340 USB-to-serial interface, voltage regulation, reset\/flash buttons, and breadboard-friendly header pins so you can program and power it through Micro-USB.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eESP8266-based NodeMCU V3 WiFi development board\u003c\/li\u003e\n  \u003cli\u003eBuilt-in 2.4 GHz 802.11 b\/g\/n WiFi for IoT projects\u003c\/li\u003e\n  \u003cli\u003eCH340 USB-to-serial converter for programming and serial debugging\u003c\/li\u003e\n  \u003cli\u003eMicro-USB port for power and firmware upload\u003c\/li\u003e\n  \u003cli\u003e3.3 V logic board with onboard voltage regulator\u003c\/li\u003e\n  \u003cli\u003eSupports Arduino IDE, Lua NodeMCU firmware, MicroPython, and ESP8266 SDK workflows\u003c\/li\u003e\n  \u003cli\u003eUseful for smart home, robotics, wireless sensor, and automation projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Details\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBoard type\u003c\/td\u003e\n\u003ctd\u003eNodeMCU ESP8266 V3 development board\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMain controller\u003c\/td\u003e\n\u003ctd\u003eESP8266 \/ ESP-12E class WiFi module\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCPU\u003c\/td\u003e\n\u003ctd\u003eTensilica L106 32-bit processor, commonly 80 MHz \/ 160 MHz configurable\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWireless\u003c\/td\u003e\n\u003ctd\u003e2.4 GHz WiFi, IEEE 802.11 b\/g\/n\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eUSB interface\u003c\/td\u003e\n\u003ctd\u003eCH340 USB-to-serial converter\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eUSB connector\u003c\/td\u003e\n\u003ctd\u003eMicro-USB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLogic voltage\u003c\/td\u003e\n\u003ctd\u003e3.3 V GPIO logic\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePower input\u003c\/td\u003e\n\u003ctd\u003eMicro-USB 5 V or VIN input within board limits\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFlash memory\u003c\/td\u003e\n\u003ctd\u003eTypically 4 MB, depending on batch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInterfaces\u003c\/td\u003e\n\u003ctd\u003eGPIO, UART, SPI, I2C by software, PWM, ADC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eADC\u003c\/td\u003e\n\u003ctd\u003e1 analog input, 10-bit ADC; check board silkscreen\/range before applying voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePackage includes\u003c\/td\u003e\n\u003ctd\u003e1 x NodeMCU ESP8266 V3 CH340 WiFi development board\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIoT and WiFi automation projects\u003c\/li\u003e\n  \u003cli\u003eHome automation switches and sensor nodes\u003c\/li\u003e\n  \u003cli\u003eWireless temperature, humidity, gas, and motion monitoring\u003c\/li\u003e\n  \u003cli\u003eArduino IDE ESP8266 learning projects\u003c\/li\u003e\n  \u003cli\u003eBlynk, MQTT, web server, and cloud-connected prototypes\u003c\/li\u003e\n  \u003cli\u003eRobotics and remote-control experiments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003ch4\u003eIs this board programmable with Arduino IDE?\u003c\/h4\u003e\n\u003cp\u003eYes. Install the ESP8266 board package in Arduino IDE, select a NodeMCU\/ESP8266 board profile, choose the CH340 serial port, and upload your sketch.\u003c\/p\u003e\n\n\u003ch4\u003eDo I need a USB driver?\u003c\/h4\u003e\n\u003cp\u003eMany computers need the CH340 USB serial driver before the board appears as a COM port.\u003c\/p\u003e\n\n\u003ch4\u003eIs the GPIO 5 V tolerant?\u003c\/h4\u003e\n\u003cp\u003eNo. ESP8266 GPIO pins use 3.3 V logic. Use level shifting when connecting 5 V sensors or modules.\u003c\/p\u003e\n\n\u003ch4\u003eCan I power it from a phone charger?\u003c\/h4\u003e\n\u003cp\u003eYes, a stable 5 V Micro-USB supply can power the board for many projects. Make sure connected sensors and relays do not overload the board regulator.\u003c\/p\u003e\n\n\u003ch4\u003eCan it connect to WiFi?\u003c\/h4\u003e\n\u003cp\u003eYes. It supports 2.4 GHz WiFi networks using ESP8266 firmware or Arduino code. It does not support 5 GHz WiFi.\u003c\/p\u003e\n\n\u003ch4\u003eCan I use it with Blynk or MQTT?\u003c\/h4\u003e\n\u003cp\u003eYes. NodeMCU ESP8266 boards are commonly used with Blynk, MQTT, web server dashboards, and cloud IoT services.\u003c\/p\u003e\n\n\u003ch4\u003eWhy is upload failing?\u003c\/h4\u003e\n\u003cp\u003eCheck the CH340 driver, USB cable data support, correct board selection, COM port, baud rate, and whether the board needs to be placed into flash mode.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Note\u003c\/h3\u003e\n\u003cp\u003eUse only 3.3 V-safe signals on GPIO pins. For relays, motors, solenoids, or high-current loads, use a separate driver circuit and proper power supply. Board layout and exact components may vary by batch.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":60779024220530,"sku":"NODEMCU-V3","price":500.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/7935\/3202\/files\/nodemcuv3ch340.webp?v=1788971959","url":"https:\/\/embededstudio.com\/products\/nodemcu-esp8266-v3-ch340-wifi-development-board","provider":"Embeded Studio","version":"1.0","type":"link"}