Bluetooth Transceiver Module HC-05 Wireless

- Bluetooth 4.0 AT-09 BLE Master / Slave module with 6-pin connection base
- This module is very similar to HM-10 module
- Bluetooth protocol: Bluetooth V4.0 BLE specification
- Ultra-low power consumption, in 90uA standby mode
Wireless Module AT-09 Bluetooth 4.0 CC2541 IOS BLE features:

- Chipset based on CC2541
- Bluetooth Class 2
- Industrial level Bluetooth module SPP
- Flash 256Kb
- Integrated chip antenna
- Power supply: + 3.3 VDC 50 mA
- Working temperature: -5 C to + 60 C
- Operating frequency: 2.4 GHz ISM Band
- Modulation method: GFSK (Gaussian Frequency Shift keying)

The SparkFun ESP32 thing is an upgrade to boards based on the popular ESP8266. What the 32 version has to offer on top? Well one of the largest upgrades is support for Bluetooth communications and nearly 30 I/O pins. Makes it pretty perfect for any IoT solution, right?

The bluetooth HC-05 module is one of the best options for projects where you need wireless communications.
The transceiver module (transmission / reception) allows bluetooth wireless connections as master or slave, works transparently as if making a wired RS-232 TTL serial connection. Arduino Wireless Module HC-05 HC05 Bluetooth features:
- CSR BC417 Chipset
- Power: 3.3.
- Bluetooth version V2.0 + EDR
- Frequency: 2.4GHz ISM band
- Modulation: GFSK
- Approximate range: 10m
- Security: Authentication and encryption
- Speed- & gt; Asynchronous: 2.1Mbps (Max) / 160 kbps; Synchronous: 1Mbps / 1Mbps
- Supports AT commands for configuration through a serial port
temperature: -20 ºC to +75 ºC

XM-15B Bluetooth Serial Port Module Master Slave Compatible Arduino HC-05/06 features:
* Power 3.0V -6V
* 3.3V / 5V logic levels
* Bluetooth version V2.1 + EDR
* Frequency: 2.4GHz ISM band
* Reach approx. 30m
* Security: Authentication and encryption
* Supports AT commands for configuration through a serial port
* Working temperature: -20 ºC to +75 ºC
* Working current - 50 mA
* PCB dimension: 35 x 19m -Using the conventional Bluetooth CSR chip, the protocol standard Bluetooth V2.1 + EDR, passes the Bluetooth BQB certification
-Fast start, only 0.3 seconds to complete the initialization of the complete module (including the Bluetooth protocol stack)
- Built-in hardware protector, never hangs

The Bluetooth HC-06 module is one of the best options for projects where you need wireless communications. Arduino Wireless Module HC-06 HC06 features:
- CSR BC417 Chipset
- Power: 3.3V
- Bluetooth version V2.0 + EDR
- Frequency: 2.4GHz band ISM
- Modulation: GFSK
- Range approx. 10m
- Security: Authentication and encryption.
- Speed- & gt; Asynchronous: 2.1Mbps (Max) / 160 kbps; Synchronous: 1Mbps / 1Mbps
- Supports AT commands for configuration through a serial port
- Working temperature: -20 ºC to +75 ºC - Working current - pairing: 80 mA
- Transmission: 8mA
- Size: 28 x 12mm

USB DC 5V Bluetooth Audio features:
- You can connect it with your smartphone
- Power: DC 5V micro USB
- Speaker: 4 ~ 8 Ohm - Audio Jack: 3.5mm
- SD card: support MP3 / WMA / WAV / FLAC format
- The transmission distance could be up to 10m
- Size: 50 x 40 mm

 Master Slave Bluetooth Modul for Arduino iOS Android. The HM10 supports Bluetooth 4.0 (low energy) and therefore has a relatively low power consumption.

This product is a Bluetooth module BLE 4.0 UART without adapter, low energy with serial transceiver.
Logic level conversion circuit. No external level of 5V is needed to become a 3.3V level.
The power input port is protected against the anti-circuit, to avoid the inverted accidental power plug, which leads to the module burn
HM-10, Bluetooth module HM-11 series using IT chip CC2540 / 2541, configuration 256Kb space, support
In commands.
You can change the paper (master and slave mode) and the baud rate, the device name, the pairing of the password and other parameters, convenient and flexible. BLE 4.0 UART Bluetooth Low Energy Module without Adapter features:
- Version AT-09 CC2541 Arduino Android IOS BLE
- Serial transceiver

 Master Slave Bluetooth Modul for Arduino iOS Android. The HM10 supports Bluetooth 4.0 (low energy) and therefore has a relatively low power consumption.

SparkFun IoT RedBoard development board compatible with Arduino. It incorporates an ESP32 chip with a 32-bit dual-core Xtensa LX6 microprocessor with a clock frequency of up to 240 MHz. It enables WiFi and Bluetooth wireless communication, making it versatile for Smart Home and IoT projects.