Bluetooth Transceiver Module HC-06 Wireless

This module has three modes (control, music and bluetooth). The audio files can be saved on the U disk and on the TF card.
Its remote control allows you to control the audio output (volume down or up, music change, mode change). Bluetooth Decoder Module Amplifier Audio Receiver USB TF features:
- Interfaces:
       - 5V micro USB supply
       - USB audio
       - U disk
       - LED
       - TF card
       - IR remote
       - AD key interface to connect external circuits
       - Bluetooth decoder
       - 3.5mm stereo output
       - Left and right 3W channels handling speaker
       - 2 3W amplifiers
- Supply voltage: 3.7-5VDC
- Signal / noise ratio (SNR): 90 dB

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

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

Work with Bluetooth compliant devices including notebook, PDA, digital camera,printer and mobile phone.
Mini Dongle Adapter Bluetooth USB V2.0 Windows XP/VISTA/7 features:
- Bluetooth specification V2.0 - Supporting profiles: networking, dial-up, fax, LAN access and handset - Operation system Windows98, 98se, Me, 2000, XP, Vista, Windows7 - Receiving/sending range: 100m

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

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.

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

- HC-05 Bluetooth transceiver module with base
- The bluetooth module HC-05 is one of the best options for projects where you need wireless communications.
- The transceiver module (transmission / reception) allows bluetooth wireless connections like master or slave, works in a transparent way as if we made a RS-232 TTL serial connection with cable.
Bluetooth Transceiver Module HC-05 Wireless features:
- Chipset CSR BC417
- 3.6 to 6 Vdc power supply
- Bluetooth version V2.0 + EDR
- Frequency: 2.4GHz ISM band
- Modulation: GFSK
- Reach approx. 10m
- Security: Authentication and encryption.
- Speed-> Asynchronous: 2.1Mbps (Max) / 160 kbps; Synchronous: 1Mbps / 1Mbps

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.