TTGO T-Watch-2020 Atviro kodo laikrodis su ESP32

DĖMESIO! Atsižvelkite į tai, jog tai nėra vartotojiškos elektronikos įrenginys, tad jo atsparumas mechaniniams poveikiams yra labiau ribotas nei rinkoje esančių masinių išmaniųjų laikrodžių: negalima pirštais įstrižai spausti korpuso; negalima išversti apyrankės į priešingą pusę; negalima veikimo metu atidaryti dangtelio.

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 temperature range -40℃ ~ +85℃
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
Battery Model : LQ-S1

Power Supply Specifications

Power Supply Micro USB (5V/1A)
Charging current The charging current is programmable and self-adjustable
Battery lithium battery

Wi-Fi

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 0.4μS 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-Fi 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