This HiLetgo ESP8266 NodeMCU board is beautifully made and functionally perfect. Breadboard friendly, it provides an ideal way into programming WiFi applications while having much lower power consumption and heat than the more modern ESP32. Be the first to review “NodeMcu LUA ESP8266 ESP-12E CH340G WiFi + Development Board V3 DIY Expansion Base” Cancel reply. You must be logged in buy nexium no prescription buy letrozole canada femara to post a review. NodeMCU ESP-12E ESP8266 WiFi Amica LUA CP2102 and Motor Shield. WiFi Bluetooth Cp2102 Development Board Esp32 Esp-32s 2.4ghz Antenna. WiFi is 2.4Ghz only, is not fast, and has limited range due to the antenna being no more than a squiggle of PCB track, but it serves the hobbyist purpose of forwarding remote readings wirelessly. It supports both WEP and WPA encryption and when in AP mode it can offer encrypted or open connections. There's not a great deal to getting the board up and running, but there follows a summary of my installation experience in case it helps someone. Connection to Computer On connecting a commonplace A-to-Micro USB lead to the board Windows 10 informed me it was installing a 'CP2102 to UART Bridge Controller' but that was not the end of the matter. In Device Manager the CP2102 USB to UART Bridge Controller was shown under Other Devices (screenshot attached) but with an exclamation mark to indicate no drivers were installed. Nodemcu Esp8266 2.4 Ghz Wifi Esp-12e Cp2102 Development DownloadThe CP2102 is designed by Silicon Labs, and a visit to the products/development-tools/software/ section of their website allowed me to download their Windows 10 usb-to-uart-bridge-vcp-drivers package. With the driver package extracted I right-clicked on the CP2102 listed under Other Devices, selected Update Driver, and pointed to the directory containing the extracted files; make sure you have the Include Subfolders box checked. Success, the USB to UART Bridge was now shown in Device Manager under Ports (screenshot attached) so the PC was able to communicate with the board. Using With The Arduino IDE The ESP8266 can be programmed in many scripting languages, but because I have been tinkering with Arduino I'm sticking with that.The Arduino IDE for Windows I have installed is Version 1.8.4 which doesn't by default have support for the ESP8266, so it is necessary to install the libraries as follows: 1. In the Arduino IDE click on File>Preferences 2. In the Additional Boards Manager URLs dialogue type the address of the ESP8266 library, see my third screenshot. Go to Tools>Board>Boards Manager 4. Scroll down the Boards Manager to 'esp8266 by Esp8266 Community' 5. Select the ESP package and click on Install. It will take a little while for this to process, click on Close when finished. Go to Tools>Port and check you have the correct COM selected. Windows Device Manager will show you which COM number is used. Go to Tools>Board and select NodeMCU 1.0 (ESP-12E Module) 8. You should be in business. Now when you select File>Examples you'll see many sketches (programs) for the ESP8266 listed. Power Supply & Consumption Although the ESP8266 is a 3.3V chip the NodeMCU does not need 3.3V supply due to it having an on-board regulator. It is definitely safe to connect up to 6V to the VIN pin, I've tried that for extended periods, but I'd be wary of higher voltages for long periods. ![]() Nodemcu Esp8266 2.4 Ghz Wifi Esp-12e Cp2102 Development SoftwareWhen a USB lead is connected its 5V line is available on the VIN pin, and that's useful for powering peripherals. With a 3.3V supply to the board I measured the current drain as 76mA, a power consumption of 250 mW. With WiFi set to Access Point mode in software the current drain increased to 82mA, a power consumption of 270 mW. Your mileage may vary, but not by much. This HiLetgo ESP8266 NodeMCU board is beautifully made and functionally perfect. Breadboard friendly, it provides an ideal way into programming WiFi applications while having much lower power consumption and heat than the more modern ESP32.
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