ESP32 Wroom 32d N4 is a complete, small form factor(sff)802. 11 b/g/n/e/i(2. 4ghz)wlan plus bt4. 2combo solution optimized for low-power, mobile consumer electronics, wearable and internet of things(iot) devices. ESP32 integrates all wlan and bt functionality in a single package to support a low cost, layout friendly implementation while allowing flexibility for platform specific customization. ESP32 is a highly integrated solution with less than 10 external components. ESP32 integrates the transmit /receive rf functionality including the antenna switches, rf banal, power amplifier, low noise receive amplifier, filters, power management, and advanced calibration circuitries that allow the solution to dynamically adjust itself to adapt to external circuit inflections. 

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