LILYGO® TTGO T-Bot ESP32 Main Chip T-Block With HC-SR04 Module Programmable Hardware MINI Trolley

More Information https github com Xinyuan LilyGO TTGO TWatch Library Feature Hardware SpecificationChipsetESPRESSIF ESP32 Wi FiBluetooth 240MHz Xtensa® single dual core 32 bit LX6 microprocessorFLASH16MB PSRAM8MBSRAM 520 kB SRAMButtonSwitch ResetUSB to TTLCH9102F QFN24Modular interfaceI2C On board clock40MHz crystal oscillator Working voltage2 7V 3 6VWorking temperature range 40℃ 85℃Size55 46 53 mmWeight48 3gPower SupplyPower Supply InputUSB 5V 1ACharging current500mABattery Input 3 7 4 2VBattery3 7V lithium batteryJST Connector2Pin 1 25mmUSBWi FiStandardFCC 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 distance300mBluetoothDescriptionProtocolMeet bluetooth v4 2BR EDR and BLE standardRadio frequencyWith 97dBm sensitivity NZIF receiver Class 1 Class 2Class 3 emitter AFHAudio frequencyCVSDSBC audio frequencySoftware 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 ConfigurationAT Instruction set cloud server android iOSappOSFreeRTOS Package includes 1 x T Bot1 x Charging Cable Th