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The ESP8266/ ESP-12F Module/ Serial WIFI Witty Cloud Development Board + MINI nodeMCU is cheap and small Wifi transceiver, a perfect solution for Home Automation and IoT applications. It can be the replacement for your NRF24L01, it can talk to your Wifi router directly through the UART MCU’s (Rx, Tx). The ESP-12 module is one of the most complete of the ESP family as it allows you to use the biggest amount of pins. You can program this module to work stand alone with the Arduino IDE or with LUA as NodeMCU. It has an LDR and a WS2812 LED already on board for your projects. The board comes with a CH40 micro USB module to program it. The ESP8266 is a highly integrated chip, including antenna and power management converter. The system equips ESP8266 and its features are: energy saving VoIP quickly switch between the sleep/wake patterns, with low-power operation adaptive radio bias, front-end signal processing functions.
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