Sell Lilygo Ttgo T-Watch-2020 Programming Development Wearable Device Esp32 Smart Programming Watch best price

Description: Hardware Specifications Chipset ESP32, dual-core MCU, PMU power management FLASH QSPI flash 16MB? SRAM? 520 KB SRAM / PSRAM? 8MB Button Power key? USB to TTL CP2104 On-board clock 40MHz crystal oscillator? Working voltage 2.7V-3.6V Working current Sleep current Working temperature range -402103?~ +852103 Weight 58.5g Display:? 1.54 inch LCD capacitive touch screen Sensor: BMA423 three-axis accelerometer, built-in step counting algorithm, activity recognition / tracking, advanced gesture recognition. RTC clock: PCF8563 Power Supply Specifications Power Supply Micro USB (5V/1A) Charging current The charging current is programmable and self-adjustable (default 350mA) Battery 3.7V lithium battery Wi-F1 Standard FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC Protocol 802.11 b/g/n(802.11n,speed up to150Mbps)A-MPDU and A-MSDU polymerization,support 0.403bcS Protection interval Frequency range 2.4GHz~2.5GHz(2400M~2483.5M) Transmit Power 22dBm Communication distance 300m Bluetooth Protocol Meet bluetooth v4.2BR/EDR and BLE standard Radio frequency With -97dBm sensitivity NZIF receiver Class-1,Class-2&Class-3 emitter AFH Audio frequency CVSD&SBC audio frequency Software specification Wi-F1 Mode Station/SoftAP/SoftAP+Station/P2P Security mechanism WPA/WPA2/WPA2-Enterprise/WPS Encryption Type? AES/RSA/ECC/SHA Firmware upgrade UART download/OTA (Through network/host to download and write firmware) Software Development Support cloud server development /SDK for user firmware development Networking protocol IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT User Configuration AT + Instruction set, cloud server, android/iOSapp OS FreeRTOS ?Package includes: 1 x T-Watch-2020 1 x Micro USB Charging Cable