LILYGO® TTGO T-Watch-2020 ESP32 Main Chip 1.54 Inch Touch Display Programmable Wearable Environmental Interaction Watch

Product Description  Hardware Specifications ChipsetESP32 dual core MCU PMU power managementFLASHQSPI flash 16MB SRAM 520 KB SRAM PSRAM8MBButtonPower key USB to TTLCP2104On board clock40MHz crystal oscillator Working voltage2 7V 3 6VWorking current Sleep current Working temperature range 40℃ 85℃Weight58 5gDisplay 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 SupplyMicro USB 5V 1A Charging currentThe charging current is programmable and self adjustable default 350mA Battery3 7V lithium batteryWi Fi StandardFCC 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 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 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 developmentNetworking protocolIPv4 IPv6 SSL TCP UDP HTTP FTP MQTTUser C