This Bluetooth module
Its operating voltages are 4 to 6 volts.
Its operating current is 30mA.
It ranges us 100m.
It works with serial communication and TTL compatible.
It follows the IEEE 802.15.1 standard protocol.
it can operate in master or slave mode or in both modes.
We can interface it with a laptop or mobile phone.
Features:
This module requires a 3.3 volt supply for VCC, and 3.3V logic.
Connecting RX or TX on 5V Arduino will destroy this module.
You must use a logic level converter, or a 3.3V Arduino.
The 3.3V supply on the Arduino Uno has inadequate current capability to power this module.
You must provide a separate, higher 3.3V supply(about 300mA or better).
TTGO T-Call V1.4 ESP32 SIM800L GSM Module
Transform your projects with the TTGO T-Call V1.4, a powerful ESP32-based GSM module that combines robust connectivity and versatile functionality. Ideal for IoT applications, this module integrates a SIM800L GSM/GPRS module with the ESP32 microcontroller, enabling seamless communication and data transfer.
Are you looking for a high-quality and reliable Bluetooth RF transceiver module for your Arduino projects? Look no further than the HC-06 4 Pin Serial Wireless Bluetooth RF Transceiver Module. This module is 100% brand new and guaranteed to provide exceptional performance and durability for all of your needs.
The HC-06 4 Pin Serial Wireless Bluetooth RF Transceiver Module is a high-quality device that is ideal for those who are looking for a reliable and efficient solution for wireless communication between their microcontroller and smartphone or tablet. The module is compatible with a variety of single-chip microcomputers such as 51, AVR, PIC, ARM, MSP430, and more, which makes it a versatile option for a range of applications.
This AT-09 HM10 / HM-10 4.0 BLE Bluetooth Serial CC2540 CC2541 Module For IOS 6/Android 4.3 contains a BLE chip (a CC2540/CC2541). This AT-09 HM-10 Bluetooth Module allows performing serial communication with the BLE chip thanks to an Rx and a Tx pin. This 4.0 Bluetooth Serial Module is also very similar to the HM-10 module and is also compatible with it. So if you have some experience with the latter, you will get started quickly with the AT-09.
SIM800L is a miniature cellular module which allows for GPRS transmission, sending and receiving SMS and making and receiving voice calls. Low cost and small footprint and quad band frequency support make this module perfect solution for any project that require long range connectivity. After connecting power module boots up, searches for cellular network and login automatically. On board LED displays connection state (no network coverage – fast blinking, logged in – slow blinking).
Be prepared to handle huge power consumption with peek up to 2A. Maximum voltage on UART in this module is 2.8V. Higher voltage will kill the module
The SIM900A GSM GPRS Wireless Extension Module is a versatile communication module designed for SMS, voice calls, and GPRS data transmission. It supports quad-band frequencies, making it ideal for IoT projects, remote monitoring, and wireless communication applications. With its compact design, onboard antenna, and easy integration, it’s perfect for Arduino, Raspberry Pi, and microcontroller-based projects.