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T-Call V1.4

T-Call V1.4

ESP32 Wireless Module SIM Antenna Development Board

Regular price $16.99 USD
Regular price Sale price $16.99 USD
Sale Sold out

⚠️Please note that all policy page on site only applies to items purchased from our store:

Relevant technical or usage issues can be also discussed in our GitHub or Community.

How to pay with different payment methods

About Tax

At present, the price of the platform does not include tax.
Customers in Europe should pay attention to the tax problem after the package reaches the local country.

[orders over 150 euros may generate tax, which needs to be borne/handled by the customer, the local policy shall prevail.]

Commended User

People with programming foundation[engineers / students / makers, etc..]

Shipping & Delivery

Methods & Delivery Time

Standard Express: 25-30 Days

EUB: 25-30 Days

YunTu Express: 10-20 Days

DHL: 10-17 Days

FedEx: 10-17 Days

We can ship to DHL/FedEx through a third-party channel (Freight Forwarder) because we don't have DHL/FedEx account.
Means : we --> third-party channel(Freight Forwarder) -->official DHL /Fedex-->you

If you do not see one of the above shipping methods when checking out, it may be because your country does not support that shipping method, please select one of the available channels already listed or contact us for assistance.

Please note that all delivery times are estimated for reference only.

Please make sure your address is fully filled in (including province and continent, which will affect the shipping time of your order)

For more details please check our shipping policy.

LILYGO® TTGO T-Call V1.4 SIM800L ESP32 Wireless Module SIM Antenna WiFi Bluetooth Development Expand Board Devkit for Arduino


SIM Nano Card Slot Yes [2G]
Clock Speed 240Mhz
Flash 4MB
Wireless Connectivity Wi-Fi: 802.11 b/g/n
Bluetooth: v4.2 BR/EDR and BLE
Button EN
Charging IC IP5306
Serial Chip CH9102
Peripheral Interfaces  I2C、SPI、UART、SDIO、、I2S、CAN
Power Supply

Support USB Type-C / Li-Po Battery Dual Power Supply

JST Connect type : JST PH 2pin 2.0mm

[USB can power the battery]


Supports pin extension of Mic and Speaker 

[Ship without mic and speaker by default]



Connect the power supply, click to start, after the start, click to reset, and click twice to shut down.

Technology Support [Github]

If you need technical support please check the link to find more details.

T-Call SIM800

1. Size

2. Pin Diagram


Due to the working mode of the IP5306 chip, will restart when switching the power supply mode.

If require in the application scenario, recommend buying the AXP192@PMU version. 

Product link will be updated here soon..

T-Call V1.4 Version [CH9102]

1 X T-Call V1.4 

1 X Power Cable(PH 2pin 2.0mm)

1 X SIM Antenna(~7 cm)

2 X Pin

GSM/GPRS Antenna

View full details

Customer Reviews

Based on 1 review
Veselin Georgiev
excellent device and support

Very nice device.