TTGO ESP32 SIM800L Module

Main Features:

• Microcontroller: ESP32 with dual-core processor, integrated WiFi, and Bluetooth.
• GSM/GPRS Module: SIM800L, capable of GSM and GPRS communication.
• Power Management: Onboard battery charging and power management for standalone operation.
• SIM Card Slot: Supports standard SIM cards for cellular connectivity.
• External Antenna: Connector for an external antenna to enhance GSM signal strength.
• GPIO Pins: Multiple GPIO pins available for sensors and actuators.
• Micro USB Port: For programming and power supply.
• Deep Sleep Mode: Low power consumption for battery-operated applications.