OVC3860 BLK-MD-SPK-B XS3886 S3860M-s module setup:
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use windows, or wine with symbolic link ~/.wine/dosdevices/com1 -> /dev/ttyUSBx
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disable your HW COM1
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set usb to serial dongle to be COM1
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connect module to usb-serial dongle, BT module reset pin connected to GND
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start datasheet/OVC3860_revd_config_tool.exe
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disconnect reset pin on bluetooth module from ground, config tool should be connected now, pres read all
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change value, then write changes with write all or selected
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info about PSKey in datasheet/OVC3860_RevE_PSKeys_Setting_v1.2.pdf
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baudrate: uart_baudrate
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device name: localname
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disable all sounds from BT module (poweron/off, connected etc.): set all tone_conf[x].cnt=00
 
breadboard adapters for these adapters can be purchase at tindie:
BLK-MD-SPK-B https://www.tindie.com/products/tomaskovacik/breadboard-adapter-for-blk-md-spk-b/
XS3886 / S3860M-s https://www.tindie.com/products/tomaskovacik/breadboard-adapter-for-s3860m-s-sx3868/
SOYO-BT24G03 https://www.tindie.com/products/tomaskovacik/breadboard-adapter-for-soyo-bt24g03-bt-module/
F-3188 https://www.tindie.com/products/tomaskovacik/breadboard-adapter-for-f-3188-csr8645-module/