LILYGO® TTGO T-Watch Sensor Development Kit STEM Programming Educational Sensor Module Multiple Function Sensor

 More information https t watch document en readthedocs io en latest introduction index htmlhttps github com Xinyuan LilyGO TTGO TWatch Library Hardware Specifications ChipsetESP32 dual core MCU PMU power managementFLASHQSPI flash 16MB PSRAM8MBSRAM 520 kB SRAMButtonpower 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 currentAbout 70mASleep currentAbout 3mAWorking temperature range 40℃ 85℃SizeWeight46 47 43 20 4mm43 19gDisplay 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 Specifications Power SupplyUSB 5V 1ACharging current500mABattery3 7V lithium batteryWi Fi StandardFCC CE RED IC TELEC KCC SRRC NCC esp32 chip Protocol802 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 distance300mBluetooth ProtocolMeet bluetooth v4 2BR EDR and BLE standardRadio frequencywith 97dBm sensitivity NZIF receiver Class 1 Class 2Class 3 emitter AFHAudio frequencyCVSDSBC audio frequencySoftware specification Wi Fi ModeStation SoftAP SoftAP Station P2PSecurity mechanismWPA WPA2 WPA2 Enterpris