ESP32 SIM800L

The ESP32 SIM800L Development Board is a powerful IoT module that combines the ESP32 microcontroller with the SIM800L GSM/GPRS module. It enables wireless communication through WiFi, Bluetooth, and GSM networks, making it ideal for remote monitoring, SMS alerts, and IoT applications where internet via SIM card is required.

Features:

• Dual Connectivity: Built-in WiFi, Bluetooth, and GSM/GPRS support
• SIM800L Module: Enables SMS, voice calls, and GPRS data communication
• ESP32 Microcontroller: Dual-core processor for high performance
• IoT Ready: Ideal for remote monitoring and automation projects
• Multiple Interfaces: UART, GPIO, SPI, I2C support
• Compact Design: Integrated board reduces wiring complexity
• Wide Compatibility: Supports Arduino IDE, ESP-IDF, and MicroPython
• Real-Time Communication: Send alerts via SMS or internet
• External Antenna Support: Improves GSM signal strength

Specifications:

• Microcontroller: ESP32 (dual-core Tensilica LX6)
• GSM Module: SIM800L (2G GSM/GPRS)
• Connectivity: WiFi (802.11 b/g/n), Bluetooth (Classic + BLE), GSM
• Operating Voltage: Typically 5V input (with onboard regulation)
• Logic Voltage: 3.3V
• Frequency: 240 MHz (ESP32)
• Communication Interfaces: UART, SPI, I2C, GPIO
• SIM Card Support: Micro SIM (2G network)
• Antenna: External GSM antenna supported
• Power Requirement: Stable supply recommended (SIM800L peak current ~2A)