But these modules have 4 outputs, two for each channel, and you cannot directly connect L, ground, R of the amplifier to them – you also needed to buy a differential amplifier that converts the SPK_AN, SPK_AP, SPK_BP, SPK_BN module to Left out, Ground, Right out for connection to TDA7560. * LED indication I wanted to take a bare module, solder power to it, an https://jiji.co.tz/computers-and-laptops/hp-probook-640-g2 amplifier input, and enjoy life. I was hoping to find a fourth option, with a USB sound card connected, but alas, the USB Host mode was not supported … A convulsive search began for a module that allowed me to connect my homemade amplifier based on the TDA7560 to a mirror. The first option was unacceptable for listening to music. After reading the review, I bought it, and after 13 days I received this masterpiece of Chinese industry in my hands. I was already thinking of fencing the garden with a soldering iron, but then I caught my eye in the open spaces of Muska a review of a box with a CSRA64215 on board, in which everything was assembled in a rather nice and compact case.

Bluetooth 4.2 audio module Sanwu SW-HF59 with Apt-X on CSRA64215

First meeting With support for external control buttons, USB sound card, USB keyboard. At first, I didn’t see the point in writing another review (after all, the product had already been reviewed on this site), but in the course of shamanism with a soldering iron, the hidden features of the product were revealed: Rear view – external antenna connector (a screw-down antenna is included, the connector itself was originally covered with a rubber plug) and MicroUSB (used only for power): * Built-in USB sound card But I also wanted galvanic isolation from the power supply … I didn’t even consider the second option – the sound quality is unimportant at the same time. – no one has written about this yet, so I decided to write my own review. * Ability to connect control buttons — Volume Up, Volume Down, Play/Pause * Built-in USB keyboard There were three sound output options – either using tiny speakers built into the mirror, or a built-in FM transmitter, or a Bluetooth connection. It’s not a shame to give such a box. 🙂 By the way, it is very compact – 55x56x26mm. – instead of a regular external antenna, you can also use a remote one, for example, from a router – a standard connector. Do you need to connect an amplifier or headphones that do not support Bluetooth via Bluetooth? This receiver is your salvation, with Apt-X support. When the device was still assembled, I forgot to take a picture of its antenna. Only the third one remained, with Bluetooth. Therefore, I photograph the antenna along with the already disassembled case, without a board inside:
In the last review, I wrote about a freshly bought mirror on Android, which had a very unpleasant drawback – it was impossible to connect an amplifier with speakers directly to it. I wanted to support Apt-X, so I started looking at modules from the CSR series.