hasemconsult.blogg.se - Bluesuite wireless speaker

#Bluesuite wireless speaker how to#
#Bluesuite wireless speaker drivers#
#Bluesuite wireless speaker portable#

A mini USB to USB A cable that supports data transfer will also be required. If you don't want to pay the expensive price and/or don't want to wait for the shipping from China, then use this new microcontroller shipped and sold in the US as a cheaper alternative. First you will need the special CSR microcontroller USB-SPI converter.

#Bluesuite wireless speaker how to#

Follow the directions below to learn how to reprogram a CSR Bluetooth device: The module can be reprogrammed to change the device's name as well as other features using a special microcontroller and some software.

This project features Bluetooth v4.1 using the KRC-86B v4.0 Bluetooth module.

The two surround speakers can be found here.

There is no other documentation of this tweeter online. It is rated at 10w 4ohm and was also pulled from Samsung WAM1500.

The center speaker is simply a tweeter that has been physically modified to play frequencies as low as 160Hz.

#Bluesuite wireless speaker drivers#

Due two the limited availibility of these drivers, it is recomended to use these other drivers as an alternative. They were pulled from two Samsung WAM1500 smart speakers.

The two bass drivers are 3.5 inches in diameter and are manufactured by BH Acoustics (see datasheet).

0.25 inch thick MDF wood is reccomended for the speaker enclosure build.

A port was used due to no room for a passive radiator. Due to Hoffman's Iron Law, the speaker will suffer in efficiency from the small enclosure & narrow port but will have a deep frequency response.

The port of the enslosure is simply a PVC pipe with a inner diameter of 0.5 inches and is 9.75 inches in length (port tuning is between 39Hz - 40Hz).

It is reccomended to use polyfill in the enclosure for better frequency response around the port tuning frequency.

in inches): Power & AUX connectors: 0.5 LEDs: 3/16 Port: 5/8 Connector, Port, and LED hole diameters (again.Speaker hole diameters (also in inches): Left and right surround speakers: 1.9 two bass drivers: 3.5 center speaker: 1.9.Sorry metric users you will have to convert the measurements on your own!): Length: 10.5 Width: 4.25 Depth: 3.5 Outer enclosure demensions are as follows (when looking at the front & in inches.Please refer to the other sections of this README to find other additional parts for the project. Only parts and components on the PCBs are in the BoM.BTLED is a blue 5mm LED and PWRLED is a 5mm green LED.Please connect this externally from the PCB. R16 is a 1/2w carbon film resistor (1K ±5%) and is not listed on the PCB.If you use a larger enclosure/smaller drivers for the speaker, then XR1075 module may not be needed.C50 & C51 on the XR1075 extension module will most likely not be needed, as LC low pass filters are already applied in the main PCB.If you are not using it, brige the holes. L & R are input/output connectors (next to KRC-86B v4.0) for the XR1075 extension PCB.There are two sources availible one for Altium and one for EasyEDA. The main and extension PCB sources are located in /PCB. Higher resistance increases the cross talk, but will also increase the phase seperation (closer to 180° out of phase). R21 & R22 control the crosstalk between surround channels.

R17 & R18 must be changed according to the output voltage gain of the amplifier.

Use the LC filter formula to determine a cutoff frequency.

R15 is a resistor in a LC high pass filter for the center channel and the resistance values must be changed in order for the high pass filter to be effective.

R23-R26 are resistors in the LC low pass filters and the resistance values must be changed in order for the low pass filter to be effective.

json (to be imported via EasyEDA) files for the source and. The schematic for this project is located in /schematic.

Only when using S-8254AAWFT IC in the bms.

Only when using XR1075 extention module.

Bluetooth v4.1 connectivity (up to 66 feet range).

8 hours of battery live (at 30w output power)³.

Battery pack cycle life enhancment 3v overdischarge cell cutoff².

3.2 channels three mid-to-high range channels & two 3.5 inch subwoofers.

This project is experimental is not yet intended for everyday use.

#Bluesuite wireless speaker portable#

This is the first ever DIY 3.2 Channel Portable Bluetooth Speaker to be published online.