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TTGO T-Call V1.3 ESP32 SIM800H Wireless Module
The TTGO T-Call V1.3 ESP32 SIM800H Wireless Module is an ESP32-based development board with built-in GSM/GPRS support. It combines WiFi, Bluetooth, and 2G cellular communication in one board, making it useful for IoT projects that need remote data sending, SMS alerts, and SIM-based connectivity.
This board is a good choice for projects placed in areas without WiFi access. With a compatible SIM card and 2G network coverage, it can send SMS, make cellular data connections, and build remote monitoring systems.
Important: This board uses 2G GSM/GPRS. It does not support 3G, 4G, LTE, or 5G. Please check if 2G service is available in your area before use.
Why Choose This Module?
- Combines ESP32 WiFi, Bluetooth, and GSM/GPRS in one board.
- Useful for IoT projects without nearby WiFi.
- Supports SMS, cellular data, and remote monitoring projects.
- Has a Type-C USB port for power and programming.
- Supports Nano SIM card use.
- Good for GPS trackers, alerts, sensor logs, and field devices.
- Works with Arduino IDE and ESP32 development tools.
Common Applications
- SMS alert systems
- Remote sensor monitoring
- IoT projects without WiFi
- GPRS data upload projects
- GPS tracker projects when paired with a GPS module
- Farm, field, and outdoor monitoring
- Security and alarm systems
- Smart meter and status reporting projects
What’s Included?
- TTGO T-Call V1.3 ESP32 SIM800H Wireless Module - 1 pc
- GSM antenna - 1 pc, if included in the supplier package
Note: SIM card, USB cable, battery, GPS module, sensors, and other accessories are not included unless stated in the actual package.
Technical Specifications
| Product Type | ESP32 GSM/GPRS wireless development board |
|---|---|
| Model | TTGO T-Call V1.3 |
| Cellular Module | SIM800H GSM/GPRS module |
| Main Controller | ESP32 dual-core 32-bit LX6 processor |
| Wireless Support | WiFi, Bluetooth, GSM, and GPRS |
| Cellular Network | 2G GSM/GPRS only |
| GSM Bands | 850 / 900 / 1800 / 1900MHz |
| SIM Card Type | Nano SIM card |
| USB Port | USB Type-C |
| Power Requirement | 5V power input recommended |
| Programming Support | Arduino IDE, ESP-IDF, and ESP32-compatible tools |
| Best For | IoT, SMS alerts, GPRS data projects, remote monitoring, and cellular sensor systems |
Setup Notes
Insert a compatible Nano SIM card with active 2G GSM/GPRS service. Connect the GSM antenna before testing cellular functions. Then connect the board through USB Type-C for programming and power.
Install ESP32 board support in Arduino IDE before uploading code. For GSM features, use a compatible SIM800 library or AT command-based code.
Power and Network Notes
- This board needs stable power for GSM transmission.
- Use a good 5V power source for reliable operation.
- 2G network coverage is required for SIM800H functions.
- This board does not support LTE SIM data.
- Network results may vary depending on SIM provider and location.
Important Notes
- SIM card is not included.
- USB cable is not included unless stated in the package.
- Check 2G network support before purchase.
- Connect the antenna before using GSM functions.
- Use correct ESP32 and SIM800H libraries for your project.
Recommended Add-ons
FAQ
What is the TTGO T-Call V1.3 used for?
It is used for ESP32 projects that need GSM/GPRS features such as SMS, remote alerts, and cellular data sending.
Does this support 4G or LTE?
No. This board supports 2G GSM/GPRS only.
Does it include a SIM card?
No. A compatible Nano SIM card is required and sold separately.
Can I use this with Arduino IDE?
Yes. It can be programmed using Arduino IDE with ESP32 board support installed.
Can this send SMS?
Yes. With a compatible SIM card and active 2G network service, it can be used for SMS-based projects.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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