LILYGO® TTGO T-Watch ESP32 WIFI bluetooth S78G GPS LORA Capacitive Touch Screen Programmable Watch Open Source Smart Watch
Hardware Specifications:
Power Supply Specifications:
Wi-Fi:
Software Specifications:
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:
T-Watch S78G GPS LORA Optional:
| 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 0.4μS 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
1 x GPS and LORA (s78G) White version
T-Watch S78G GPS LORA Optional:
1 X Expansion board
(1) FREE Shipping 10 - 15 business days, (2) Standard Shipping 7 - 12 business days.
Shipping and Delivery Estimates
We ship in-stock orders as soon as possible. This is often within two business days, but there are situations where it may take longer. All estimates are based on business days.
Note:
(1) The shipping time mentioned above refers to the estimated time of business days that the shipment will take after an order has been shipped.
(2) Business days do not include Saturday/Sunday and any public holidays.
(3) These estimates are based on normal circumstances and are not a guarantee of delivery times.
(4) We are not responsible for the failures or delays in delivery resulting from any force majeure event, such as natural disaster, bad weather, war, customs issues, and any other event beyond our direct control.
for more information please visit our Shipping Policy Page.
Our policy lasts 14 days. If 14 days have gone by since your purchase, unfortunately we can't offer you a refund or exchange. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
Sizing & Fit Guide
Please be aware that most of our clothing is Juniors' sizing, which runs smaller than regular US / European Women sizing. Refer to the measurements chart for each individual product to determine the best size for you. Product specific size chart and information can be found in product description or in product picture gallery.
Our team does it's best to include accurate size details and measurement of each item in the product descriptions. If you have questions regarding sizing or any other information on a specific item, please email us at support@mrslm.com for specific details.
Find the best size
When comparing your measurements to those listed on the site, make sure to check if the fabric is stretchy or not. If it is, it can stretch an inch or more.
- Bust: Wrap the measuring tape loosely around the fullest part of your bust to ensure a comfortable fit.
- Waist: Measure the narrowest part of your natural waist, holding the measuring tape loose enough to fit comfortably.
- Hips: Drape the measuring tape around the widest part of your hips, resting the tape comfortably against your body.
- Length: For tops and dresses, measure from the top of your shoulder to the hem. For strapless dresses, measure from the highest part of the neckline to the hem. For pants and skirts, measure from the top of the waist to the hem.
- Sleeve: With your arm outstretched, measure from the base of your neck to the end of the sleeve hem to determine where the sleeve length will fall on you.
Size Chart
Dresses Size Chart
Dress Size Chart (Inch)
|
DRESSES SIZE IN INCHES |
||||
| SIZE | US / CAN | BUST | WAIST | HIPS |
| XS | 0 | 31"-32" | 24"-25" | 34"-35" |
| S | 2-4 | 33"-34" | 26"-27" | 36"-37" |
| M | 6-8 | 35"-36" | 28"-29" | 38"-39" |
| L | 10-12 | 37"-39" | 30"-32" | 40"-42" |
| XL | 14 | 40"-42" | 33"-35" | 43"-45" |
Dress Size Chart (cm)
|
DRESSES SIZE IN CM |
||||
| SIZE | US / CAN | BUST | WAIST | HIPS |
| XS | 0 | 78.7-81.2 | 60.9-63.5 | 86.3-88.9 |
| S | 2-4 | 83.8-86.3 | 66-68.5 | 91.4-93.9 |
| M | 6-8 | 88.9-91.4 | 71.1-73.6 | 96.5-99 |
| L | 10-12 | 93.9-99 | 76.2-81.2 | 101.6-106.6 |
| XL | 14 | 101.6-106.6 | 81.2-88.9 | 109.2-114.3 |
Tops Size Chart
Tops Size Chart (Inch)
|
TOPS SIZE IN INCHES |
|||
| SIZE | US / CAN | BUST | WAIST |
| XS | 0 | 31"-32" | 24"-25" |
| S | 2-4 | 33"-34" | 26"-27" |
| M | 6-8 | 35"-36" | 28"-29" |
| L | 10-12 | 37"-39" | 30"-32" |
| XL | 14 | 40"-42" | 33"-35" |
Tops Size Chart (cm)
|
TOPS SIZE IN CM |
|||
| SIZE | US / CAN | BUST | WAIST |
| XS | 0 | 78.7-81.2 | 60.9-63.5 |
| S | 2-4 | 83.8-86.3 | 66-68.5 |
| M | 6-8 | 88.9-91.4 | 71.1-73.6 |
| L | 10-12 | 93.9-99 | 76.2-81.2 |
| XL | 14 | 101.6-106.6 | 83.8-88.9 |
Bottoms Size Chart
Bottoms Size Chart (Inch)
|
BOTTOMS SIZE IN INCHES |
|||
| SIZE | US / CAN | WAIST | HIPS |
| XS | 0 | 24"-25" | 34"-35" |
| S | 2-4 | 26"-27" | 36"-37" |
| M | 6-8 | 28"-29" | 38"-39" |
| L | 10-12 | 30"-32" | 40"-42" |
| XL | 14 | 33"-35" | 43"-45" |
Bottoms Size Chart (cm)
|
BOTTOMS SIZE IN CM |
|||
| SIZE | US / CAN | WAIST | HIPS |
| XS | 0 | 60.9-63.5 | 86.3-88.9 |
| S | 2-4 | 66-68.5 | 91.4-93.9 |
| M | 6-8 | 71.1-73.6 | 96.4-93.9 |
| L | 10-12 | 76.2-81.2 | 101.6-106.6 |
| XL | 14 | 83.8-88.9 | 109.2-114.3 |
Denim Size Chart
Denim Size Chart (Inch)
|
DENIM SIZE IN INCHES |
||||
| WAIST SIZE | JUNIOR SIZING | WAIST | LOW WAIST | HIPS |
| 24 | 0 | 24"-25" | 26"-27" | 32"-33" |
| 25 | 1 | 25"-26" | 28"-29" | 33"-34" |
| 26 | 3 | 26"-27" | 30"-31" | 34"-35" |
| 27 | 5 | 27"-28" | 31"-32" | 35"-36" |
| 28 | 7 | 28"-29" | 32"-33" | 36"-37" |
| 29 | 9 | 29"-30" | 33"-34" | 37"-38" |
| 30 | 11 | 30"-31" | 34"-35" | 38"-39" |
| 31 | 13 | 31"-3" | 35"-36" | 39"-40" |
| 32 | 15 | 32"-33" | 36"-37" | 40"-41" |
Denim Size Chart (cm)
|
DENIM SIZE IN CM |
||||
| WAIST SIZE | JUNIOR SIZING | WAIST | LOW WAIST | HIPS |
| 24 | 0 | 60.9-63.5 | 66-68.5 | 81.2-83.8 |
| 25 | 1 | 63.5-66 | 71.1-73.6 | 83.8-86.3 |
| 26 | 3 | 66-68.5 | 76.2-78.7 | 86.3-88.9 |
| 27 | 5 | 68.5-71.1 | 78.7-81.2 | 88.9-91.4 |
| 28 | 7 | 71.1-73.6 | 81.2-83.8 | 91.4-93.9 |
| 29 | 9 | 73.6-76.2 | 83.8-86.3 | 93.9-96.5 |
| 30 | 11 | 76.2-78.7 | 86.3-88.9 | 96.5-99 |
| 31 | 13 | 78.7-81.2 | 88.9-91.4 | 99-101.6 |
| 32 | 15 | 81.2-83.8 | 91.4-93.9 | 101.6-104.1 |
Swimwear Size Chart
Swimwear Size Chart (Inch)
|
SWIMWEAR SIZE IN INCHES |
||||
| SIZE | US / CAN | BUST | WAIST | HIPS |
| XS | 0 | 31"-32" | 24"-25" | 33"-34" |
| S | 2 | 33"-34" | 26"-27" | 35"-37" |
| M | 4 | 35"-36" | 28"-29" | 37"-38" |
| L | 6 | 37"-39" | 30"-32" | 39"-41" |
| XL | 8 | 40"-42" | 33"-35" | 42"-44" |
Swimwear Size Chart (cm)
|
SWIMWEAR SIZE IN CM |
||||
| SIZE | US / CAN | BUST | WAIST | HIPS |
| XS | 0 | 78.7-81.2 | 60.9-63.5 | 83.8-86.3 |
| S | 2 | 83.8-86.3 | 66-68.5 | 88.9-93.9 |
| M | 4 | 88.9-91.4 | 71.1-73.6 | 93.9-96.5 |
| L | 6 | 93.9-99 | 76.2-81.2 | 99-104.1 |
| XL | 8 | 101.6-106.6 | 81.2-88.9 | 106.6-111.7 |
Shoes Size Chart
| US | EURO | UK | AUS | JAPAN | CHINA |
| 5 | 35-36 | 3 | 3.5 | 21.5 | 35 |
| 5.5 | 36 | 3.5 | 4 | 22 | 35.5 |
| 6 | 36-37 | 4 | 4.5 | 22.5 | 36 |
| 6.5 | 37 | 4.5 | 5 | 23 | 36.5 |
| 7 | 37-38 | 5 | 5.5 | 23.5 | 37 |
| 7.5 | 38 | 5.5 | 6 | 24 | 37.5 |
| 8 | 38-39 | 6 | 6.5 | 24.5 | 38 |
| 8.5 | 39 | 6.5 | 7 | 25 | 38.5 |
| 9 | 39-40 | 7 | 7.5 | 25.5 | 39 |
| 9.5 | 40 | 7.5 | 8 | 26 | 39.5 |
| 10 | 40-41 | 8 | 8.5 | 26.5 | 40 |
| 11 | 41-42 | 9 | 9.5 | 27.5 | 41 |
Attention: This guide provides general sizing information only, and fit can vary depending on style and brand. For more specific sizing information on the product, please refer to product description.
NOTE:
- All models are wearing size small in tops and dresses, and size 1, 3, or 5 in jeans depending on their body type.
- Most kalles jeans & dresses have some stretch, please refer to product description for fabric details.
- Most kalles bottoms have an inseam of 31-34” depending on the cut and style. Sizing may vary depending on cut and style.
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