What is it?WayPonDEV T-Watch 2020 is ESP32 development board,but you can wear it like a smartwatch.What can it be used for?Internet of Things learning, agricultural automation, making creative products, smart home device control, remote data collection and monitoring, wearable smart devicesHardware Specificationvoltage: 2.7V~3.6VWorking temperature range: -40?~+85?RTC clock: PCF8563Battery model: LQ-S1Screen resolution: 240 * 240Power supply: Micro USB (5V/1A)Charging current: the charging current is programmable and self-adjustable(default 350mA)Battery: 1 * lithium battery, 3.7V, 350mAh-Wi-Fi Specifications-Standard: FCC/CE-RED/IC/TELEC/KCC/SRRC/NCCProtocol: 802.11 b/g/n(802.11n?speed up to150Mbps)A-MPDU and A-MSDU polymerization, support 0.4?S Protection intervalProtocol: meet BT v4.2BR/EDR and BLE standardWi-Fi mode: station/softAP/softAP+Station/P2PFirmware upgrade: UART download/OTA?Through network/host to download and write firmware?Software development: support cloud server development /SDK for user firmware developmentNetworking protocol: IPv4?IPv6?SSL?TCP/UDP/HTTP/FTP/MQTTUser configuration: AT + Instruction set, cloud server, android/iOS appOS: FreeRTOSPackage size: 100 * 75 * 25mm / 3.9 * 3.0 * 1.0inPackage weight: 89g / 3.1ounce-In the Box-1x T-Watch-2020 Black1x Micro USB Charging Cable-Tech-support-Please click "WayPonDEV" and ask a question or monica#smartfire.cn (f------>@) skype: monica_9122Please leave the message in our forum by “ forum.youyeetoo.com/ ”