LILYGO® TTGO T-Watch Keyboard ESP32 Programmable Watch Main Chip Hardware with MINI Expansion Keyboard

More Information https github com Xinyuan LilyGO TTGO TWatch Libraryhttps t watch document en readthedocs io en latest index html  Product Description  Hardware SpecificationsChipsetESP32 dual core MCU PMU power managementFLASHQSPI flash 16MBSRAM520 kB SRAM PSRAM8MBButtonPower key IO36Extended functionReference enhanced version and sensor kitUSB to TTLCP2104Modular interfaceUART SPI SDIO I2C LED PWM PWM I2S IRGPIO capacitor touch sensor ADC DACLNAOn board clock40MHz crystal oscillatorWorking voltage2 7V 3 6VWorking currentAbout 70mASleep CurrentAbout 1mAWorking temperature range 40℃ 85℃Size91 71 x 70 64 x 25 33mmWeight56 23gDisplay1 54 inch LCD capacitive touch screenSensorBMA423 three axis accelerometer built in step counting algorithm activity recognition tracking advanced gesture recognition RTC clockPCF8563Power Supply SpecificationsPower SupplyUSB 5V 1ACharging current500mABattery3 7V lithium battery JST 2Pin 1 25mm Wi FiStandardFCC 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 distance300mBluetoothProtocolMeet bluetooth v4 2BR EDR and BLE standardRadio frequencyWith 97dBm sensitivity NZIF receiver Class 1 Class 2Class 3 emitter AFHAudio frequencyCVSDSBC audio frequencySoftware specificationWi Fi ModeStation SoftAP SoftAP Station P2PSecurity mechanismWPA WPA2 WPA2 Enterprise WPSEn