Feature Update information Add audio output interface 3 5mm interface and speaker output JST 2 0 PH 2 Pin interfaceHardware SpecificationsChipsetTTGO Micro32FLASHQSPI flash 4MB PSRAM 8MBSRAM 520 kB SRAMButtonReset IO36Extended functionVGA PS 2USB to TTLCH9102FModular interfaceUART SPI SDIO I2C LED PWM TV PWM I2S IRGPIO capacitor touch sensor ADC DACLNApre amplifierOn board clock40MHz crystal oscillator Working voltage2 7V 3 6VWorking currentabout 30mASleep current230uAWorking temperature range 40â?? 85â??SizeWeightwithout VGA 60 99mm 32 06mm 16 79mmwith VGA 66 70mm 32 06mm 16 79mm21 25gPower Supply SpecificationsPower SupplyUSB 5V 1ACharging current500mABattery3 7V lithium batteryWi FiDescriptionStandardFCC CE RED IC TELEC KCC SRRC NCCProtocol802 11 b g n 802 11n speed up to150Mbps A MPDU and A MSDU polymerization support 0 4μS Protection intervalFrequency range2 4GHz 2 5GHz 2400M 2483 5M Transmit Power22dBmCommunication distance300mBluetoothDescriptionProtocolmeet bluetooth v4 2BR EDR and BLE standardRadio frequencywith 97dBm sensitivity NZIF receiver Class 1 Class 2Class 3 emitter AFHAudio frequencyCVSDSBC audio frequencySoftware specificationDescriptionWi Fi ModeStation SoftAP SoftAP Station P2PSecurity mechanismWPA WPA2 WPA2 Enterprise WPSEncryption Type AES RSA ECC SHAFirmware upgradeUART download OTA Through network host to download and write firmware Software DevelopmentSupport cloud server development SDK for user firmware developmentNetworki
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