LILYGO® TTGO T-Watch Without Touch Screen Version TTP223 Touch Button Programmable Wearable Environmental Interaction ES

Feature Hardware SpecificationsChipsetESP32 dual core MCU PMU power managementFLASHQSPI flash 16MBSRAM520 kB SRAM PSRAM 8MBButtonpower 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 voltage27V 3 6VWorking currentabout 70 mASleep currentabout 1mAWorking temperature range 40°C 85°CSizeWeight46 47 43 20 4mm 43 19gDisplay1 54 inch LCD screenSensorBMA423 three axis accelerometer built in step counting algorith m activity recognition tracking advanced gesture recognition RTC clockPCF8563Power Supply SpecificationsPower SupplyUSB 5V 1ACharging currentProgrammable adjustmentBattery3 7V lithium battety JST 2pin 1 25mm Wi Fi DescriptionStandardFCC CE RED IC TELEC KCC SRRC NCC ESP32 chip Protocol802 11 b g n 802 11n speed up to 150Mbps A MPDU and A MSDU polymerization support 0 4uS Prrotection intervalFrequency range2 4GHz 2 5GHz 2400M 2483 5M Transmit Power22dBmCommunication distance300mBluetooth DescriptionProtocolmeet bluetooth V4 2 BR EDR and BLE standardRadio frequencywith 97dBm sensitivity NZIF receiver Class 1 Class 2Class 3 emitter AFHAudio frequencyCVSDSBC audio frequencySoftware specification DescriptionWi Fi ModeStation SoftAP SoftAP Station P2PSecurity mechanismWPA WPA2 WPA2 Enterprise WPSEncryption TypeAES RSA ECC SHAFirmware upgradeUART download OTA Through network host to downloa