ESP8266 NodeMCU V2 WiFi IOT Arduino IDE Compatible Module Overview

ESP8266 NodeMCU V2 WIFI IOT Arduino IDE Compatible Module Overview.
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Features:

The wireless SoC has the following:
802.11 b/g/n protocol
Wi-Fi 2.4 GHz, support WPA/WPA2
Integrated 10-bit ADC
Integrated TCP/IP protocol stack -ipv4 only at the moment
Integrated TR switch, balun, LNA, power amplifier and matching network Integrated PLL, regulators, and power management units
+20dBm output power in 802.11b mode
Supports antenna diversity
Integrated low power 32-bit MCU

The 32-bit MCU has the following:
GPIO, I2C, ADC, SPI, PWM and many more
Running at 80MHz
64KBytes of instruction RAM
96KBytes of data RAM
64KBytes boot ROM
4MB of flash
RISC architecture

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