HW_BT
Features:
1. Good material and meticulous workmanship
2. Small size, long service life
3. Supports Bluetooth version 5.0
4.3.7-5V power supply
5. Support for automatic reconnection function
Parameters:
1. Supports Bluetooth 5.0
2. 3.7-5V power supply
3. Support for automatic reconnection function
4. On board stereo D-class power amplifier module
5. Maximum output 5W+5W
6. Can be connected to two 3W (5W) speakers.
7. Supports automatic reconnection function, supports WAV+APE+FLAC+MP3 lossless decoding, stereo output
8. USB power supply: universal Micro USB 5V power supply Welding power supply: DC3.7~5V power supply
9. Signal to noise ratio: 90db
10. THD+N: -70db
11. Crosstalk: -86dbDNR: 91db
12. Service level:>5m
2.Operating instructions:
Using a USB cable for power supply, the blue indicator light flashes and enters Bluetooth mode; When hearing the voice message 'The Bluetooth device is ready to pair', it indicates entering Bluetooth mode and waiting for pairing; After searching for "HW-BT" (decoded device name) through Bluetooth on your phone, click on Connect. When you hear the voice message 'The Bluetooth device is connected successfully', it indicates that the decoding board has successfully connected to the phone. The blue indicator light remains on, and music can be played. At this time, the blue indicator light flashes.
Package include:
1X decoding board
VHM-314
Features:
1.Supports Bluetooth 5.1
2.Support for automatic reconnection function
3.Supports WAV+APE+FLAC+MP3 lossless decoding
4.Stereo output
5.Service level greater than 5m
Parameters:
Product name: MP3 Bluetooth 5.1 decoding board
Product model: VHM-314
USB power supply: Universal Micro USB 5V power supply
Welding power supply: DC3.7~5V power supply
Signal to noise ratio: 90db
THD+N: -70db
Crosstalk: -86dbDNR: 91db
Supported configurations: A2DP/AVCTP/AVDTP
Service level:>5m
Package include:
1X module
VHM-314-V2.0 with button
Product Feature:
1.100% brand new high-quality products.
2. Made of high-quality materials, durable and practical.
3. Small size, simple application, and easy installation.
4. Efficient and stable performance, long working life.
5. Widely applicable.
Product parameters:
Power supply: 3.7-5V
Signal to noise ratio: 90dB
Total harmonic distortion:+N-70dB
Crosstalk: -86dB
Packing list:
Module * 1
XY-WRBT Volume adjustable
Features
2. Support stereo output: support high quality stereo audio decoding, provide clear and delicate sound quality experience.
3. Low Latency Transmission
Low Latency: Optimized audio transmission algorithm ensures low latency audio transmission, especially suitable for watching videos, playing games and other scenarios that require synchronization of audio and video. The delay time is usually within 20ms, almost imperceptible delay.
4. Multiple interfaces, 3.5mm audio interface and TYPE-C power supply interface, convenient for connecting different audio devices, such as headphones, speakers, sound systems, etc.
5. The module has a protection mechanism that supports power reverse connection protection.
Product Name：Bluetooth decoder board
Product Model:XY-WRBT
Operating voltage: 3.7~ 24VDC
Bluetooth version: 5.0
Transmission distance: 15 meters ( visible without obstruction)
Signal-to-noise ratio: ≥90dB
Distortion: s-70dB
Sound channel number of children: dual-channel (stereo)
Audio interface: 3.5mm audio interface
Module protection mechanism: power reverse connection protection
1. Power supply can be used Micro-USB/TYPE-C USB charger, 3.7-4.2V lithium battery, 3.7-24V DC power supply, any one of the three can be.
2. Short “on/off contact” for 2 seconds to set the decoder board on/off, for the battery-powered case, when not in use to shut down more power-saving, easy to modify.
1 x Decoder Board
After connecting the power, the blue indicator light flashes, enter the bluetooth mode; after broadcasting the “tone” enter the pairing mode and wait for pairing; cell phone bluetooth search to “XFY-WRBT” (amplifier board device name), click on XFY-WRBT” to connect, after successful connection, play the ‘tone’, the indicator light is long, you can play the music on your cell phone, the indicator light flashes slowly when playing music; Bluetooth disconnect the amplifier board to prepare for the next pairing, and play the ‘tone’. After the Bluetooth disconnection, the amplifier board will be ready for the next pairing, and play the “beep” to enter the pairing mode and wait for the pairing.
1. When using battery power supply, the battery voltage is lower than 3.3V decoder board automatically shut down, re-power or fully charged after shorting the on/off contact for 2 seconds to boot.
2. When using battery power, if the battery voltage is too low, there may be “ZiZi” noise, in this case you need to charge the battery.
3. As there is no lithium battery charging protection circuit on the decoder board, it is recommended to use the lithium battery with its own protection board.
4. If your rechargeable battery supports Micro USB/TYPE-C USB direct charging, you can use Micro USB/TYPE-C USB to charge the battery directly.
Power supply: 3.7-5V
Signal to noise ratio: 90DB
Total harmonic distortion + noise: -70dB
Crosstalk: -86DB
Support profile: A2DP /AVCTP / AVDTP/AVRCP / HFP
Transmission distance: 15M (open without partition wall)
Decoding format: WAV+APE+FLAC+MP3 lossless decoding, stereo output
While charging and discharging:
This product has a charging and discharging circuit, which can be powered by a USB power supply, which truly realizes the function of charging and discharging. Solve the pain points that some products cannot be used during charging.
When powered by USB alone: the red light flashes, indicating that the power supply is normal.
When powered by a separate battery: the yellow light is always on, indicating that the battery is supplying normally; the yellow light is flashing, it indicates that the battery is low.
When the USB and the battery are connected at the same time: the red light flashes to indicate that the battery is charging; the red light is always on to indicate that the battery is fully charged.
(Note that if the USB input is suddenly disconnected during the process of punching and playing, there will be a few seconds of interruption time due to the switching of the charging and discharging modes, and then the Bluetooth will automatically restart, automatically connect and maintain the previous playback state)
After the Bluetooth is connected, turn on the call audio mode in the Bluetooth settings. If the phone comes in, you can answer or hang up the call through the PLAY/STOP button. You can choose to send the call from the microphone of the original headset (provided that the headset has a call function, which is 4-segment type) or the onboard microphone
Tin the pads in the two boxes corresponding to the Sound Card on the back of the module. At this time, connect it to the computer's USB port through the USB cable, and it can be used as a sound card. That is, the sound played by the computer is output through the audio interface of the module. (Not enabled by default)
MP3 decoder board*1