The HC-06 Bluetooth Module is a low-cost Bluetooth Serial Port Protocol (SPP) module designed for wireless communication between microcontrollers and other Bluetooth-enabled devices. It is widely used for applications such as wireless data transfer, remote control, and wireless sensors in projects involving Arduino, Raspberry Pi, and other embedded systems.

The SIM800L V2.0 5V GSM GPRS module is an upgraded version of the popular SIM800L, designed to work directly with 5V logic without requiring voltage level shifting. It enables SMS messaging, voice calls, and GPRS data connectivity, making it ideal for IoT applications, remote monitoring, and automation projects. The module comes with an antenna for better signal reception and is compatible with Arduino, ESP32, Raspberry Pi, and other microcontrollers.

The SIM800L GSM GPRS module is a compact and reliable quad-band communication module that enables devices to send and receive SMS, make voice calls, and connect to the internet via GPRS. Ideal for IoT applications, remote monitoring, home automation, and tracking systems, this module is compatible with Arduino, ESP32, Raspberry Pi, and other microcontrollers.

The 3dBi Omni-Directional Antenna with SMA Male Connector is designed for 433MHz communication applications, including GSM, GPRS, LoRa, WiFi, and other wireless systems. It provides enhanced signal reception and transmission stability, making it ideal for IoT, remote monitoring, and industrial wireless applications.