SIM800L
2 devicesBrowse boards with SIM800L 2G modem for GSM SMS, voice calls, and low-cost cellular IoT.
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LILYGO T-Call SIM800
Dev Board
ESP32 board with SIM800L 2G GSM/GPRS modem for SMS alerts, voice calls, and cellular data — ideal for remote monitoring and IoT projects needing cellular fallback on a budget.
Xtensa LX6 dual-core @ 240MHz, FPU, HW crypto (AES/SHA/RSA)520KB SRAM4MBWiFi 802.11 b/g/nBLE BLE 4.2
~$17View

LILYGO T-Call V1.4
ESP32
ESP32 development board with SIM800L 2G GSM/GPRS cellular modem, Wi-Fi, Bluetooth 4.2, USB-C charging, and Li-Po battery connector for IoT devices requiring SMS and GPRS data connectivity.
ESP324MBWiFi 802.11 b/g/nBLE BLE 4.2
~$17View
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