Hardware Specifications
Chipset:ESP32, dual-core MCU, PMU power management
FLASH:QSPI flash 16MB
SRAM:520 kB SRAM / PSRAM 8MB
Button:power key , IO36
Extended function
USB to TTL:CP2104
Modular interface:UART, SPI, SDIO, I2C, LED PWM , PWM, I2S, IRGPIO, capacitor touch sensor, ADC, DACLNA
On-board clock:40MHz crystal oscillator
Working voltage:2.7V-3.6V
Working current:about 70mA
Sleep current:about 3mA
Working temperature:-40→ ~ +85→
Size & Weight:46.47 x 43 x 20.4mm
43.19g
Display:1.54 inch LCD capacitive touch screen
Sensor:BMA423 three accelerometer, built-in step counting algorithm, activity recognition / tracking, advanced gesture recognition.
RTC clock:PCF8563
Power Supply Specifications
Power Supply:USB 5V/1A
Charging current:500mA
Battery:3.7V 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 0.4┢S Protection interval
Frequency:2.4GHz~2.5GHz(2400M~2483.5M)
Transmit Power:22dBm
Communication distance:300m
Bluetooth
Protocol:meet bluetooth V4.2 BR/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 Specifications
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
Appearance Specifications
T-Watch onboard
1.54 inch LCD capacitive touch screen:ST7789V
Touch screen chip:FT5206
Accelerometer:BMA423
PMU power management:AXP202
RTC clock module:PCF8563
Expand the interface
Support microphone:MSM261S4030H0
Support SPI TF memory card
2 digital I/Os:GPIO25, GPIO26 (supports ADC, DAC)
Support I2C, UART, SPI communication protocol
Product Details
Accelerometer
Chip:BMA423
Latest generation triaxial, low-g acceleration sensor
ultra-small
digital interfaces
2-bit digital resolution and embedded intelligence
allows low-noise measurement of accelerations in 3 perpendiculars and thus senses wrist tilt, tab/double tab and enables plug & play step counting especially in wearable devices.
Recommended for
– Step-counting in wearable devices
– Wake up display on wrist tilt
– Low power user interaction by tab/double tab
– Advanced gesture recognition
– Activity recognition/tracking
– Advanced power management
– Tilt compensation for electronic compass
Package includes
(the battery is not includes)
GPS and LORA (s78G) Black Optional
1 x GPS and LORA (s78G) Black version
GPS and LORA (s78G) Black Optional
1 x GPS and LORA (s78G) White version
T-Watch S78G GPS LORA Optional
1 X Expansion board
Additional information
| Weight | 0.15 kg |
|---|
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