Built in Wi-Fi module of standard 802.11Wi-Fi module operate in range of 2.4 GHz – 2.5 GHzThree modes of operation: 1. Access point. 2. Client. 3. Access point stationDual core microprocessor of 32 – bitOperating voltage is 3.3 VClock frequency from 80 MHz and goes up to 240 MHzSRAM memory is of 512 KBROM memory is 448 KBExternal flash memory is supported and is up to 32 Mb i.e. 4MBMaximum current in each pin is 12 mA but 6 mA is recommended to useIt has 36 general purpose input / output pinsGeneral purpose input / output pins comes up with PWM / I2C and SPI functionalityBluetooth version 4.2 is available and Bluetooth low energy (BLE) version2 to 3.6 V operating voltageDeep sleep current of 2.5 µA10 electrode capacitive touch supportHardware supported encryption for AES, ECC, RSA – 4096, SHA2On board PCB antenna or IPEX connector which act as external antennaOperating temperature lies in range of -40°C to 125°C
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