LILYGO® TTGO T-Watch T-Fingerprint ESP32 Main Chip 1.54 Inch Touch Screen Expansion Fingerprint Sensor Development Hardw

More Information https github com Xinyuan LilyGO TTGO TWatch Library https t watch document en readthedocs io en latest index html Feature Hardware SpecificationsChipsetESP32 dual core MCU PMU power managementFLASHQSPI flash 16MB SRAM 520 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 DACLNA On board clock40MHz crystal oscillator Working voltage2 7V 3 6VWorking temperature range 40℃ 85℃Size69 50 46 4 22mmWeight56 23gDisplay 1 54 inch LCD capacitive touch screenSensor BMA423 three axis accelerometer built in step counting algorithm activity recognition tracking advanced gesture recognition RTC clock PCF8563Power 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 WPSEncryption Type AES RSA ECC SHAFirmware upgradeUART download