LILYGO® TTGO T-Watch Keyboard ESP32 Main Chip Programmable Watch Hardware

Description

LILYGO® TTGO T-Watch Keyboard ESP32 Main Chip Programmable Watch Hardware And MINI Expansion Keyboard
Product Description
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
Reference enhanced version and sensor kit
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 1mA
Working temperature range
-40℃ ~ +85℃
Size
91.71 x 70.64 x 25.33mm
Weight
56.23g
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
USB 5V/1A
Charging current
500mA
Battery
3.7V lithium battery(JST:2Pin 1.25mm)
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
Product Size
Product Detail
LILYGO® TTGO T-Watch Keyboard is modified based on the open source project Twitter @ arturo182. At the same time, the externally expanded MINI keyboard can also be used with T-Watch Basic, T-Watch Lora, T-Watch SNAIL.
1.T-Watch Keyboard
2.
Keyboard
3.J-LINK，keyboard can also be connected to the PC by J-LINK and USB interface
1.The interface is simplified, the four line: VCC, SWDIO, SWCLK, GND four interface, compared to JTAG, can save a variety of IO, high speed, download error search.
2.Fully compatible with the traditional J-Link, with all the functions of the J-Link.
3. With the Mirco usb interface (the smart phone with the type of data), general line.
4.3.3V output, also can give the target marine power supply, convenient debugging and download.
5.Onboard recovery fuse, avoid damage to the circuit board, safer.
6.Has a unique ID logo, several devices at the same time troubleshooting is not conflict.
7.With a transparent shrink tube, beautiful and intimate protection.
8.Stable work, no loss of the firmware.
9.The size of the 9, only u-disk, simple circuit, stable and reliable, convenient to move and carry.
Shipping List
1.
T-Watch Keyboard
Option
1 X T-Watch Keyboard
1 x Charging Cable
2.
Keyboard
Option
1 X Keyboard
1 x AWM 20624 cable
3.
J-LINK
Option
1 X J-LINK
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