LILYGO TTGO T-Call V1.4 SIM800L Development Board ESP32 Wireless Module SIM Antenna WiFi Bluetooth Expand Board for Arduino
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The LILYGO TTGO T-Call V1.4 is a handy ESP32 board with built-in SIM800L GSM/GPRS, WiFi, and Bluetooth 4.2. It’s a solid choice for IoT, remote monitoring, and Arduino projects where you need both cellular and wireless connectivity. The board includes 4MB Flash and 8MB PSRAM, giving you plenty of memory for multitasking and data handling.
You get a SIM card slot and a 7cm SIM antenna for reliable mobile signal, plus support for multiple interfaces: I2C, SPI, UART, SDIO, I2S, and CAN. Power management is handled by the IP5306 chip, which restarts the board when you switch power modes; for extra stability, the AXP192 PMU version is suggested.
The package comes with the T-Call SIM800H module (choose 4MB or 8MB), a power cable, SIM antenna, and two pins for easy setup. It’s compact and easy to add to any Arduino-based build.
Key Features
- ESP32 MCU at 240MHz, 4MB Flash, 8MB PSRAM
- SIM800L GSM/GPRS for cellular data
- WiFi 802.11 b/g/n and Bluetooth 4.2
- I2C, SPI, UART, SDIO, I2S, CAN interfaces
- SIM card slot and included antenna
- IP5306 power management (AXP192 version available)
- Easy integration with Arduino
Applications
- IoT devices with cellular and WiFi
- Remote monitoring and data transfer
- Wireless sensor networks
- Arduino communication projects
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