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VHM-314 Bluetooth decoding board MP3 lossless car speaker amplifier modification Bluetooth 4.1/5.0 circuit board

VHM-314 Bluetooth decoding board MP3 lossless car speaker amplifier modification Bluetooth 4.1/5.0 circuit board

VHM-314 Bluetooth decoding board MP3 lossless car speaker amplifier modification Bluetooth 4.1/5.0 circuit board

VHM-314 Bluetooth decoding board MP3 lossless car speaker amplifier modification Bluetooth 4.1/5.0 circuit board

5V stepper motor+ULN2003 drive board five wire four phase/stepper motor drive board/test board 1 set

5V stepper motor+ULN2003 drive board five wire four phase/stepper motor drive board/test board 1 set

5V stepper motor+ULN2003 drive board five wire four phase/stepper motor drive board/test board 1 set

5V stepper motor+ULN2003 drive board five wire four phase/stepper motor drive board/test board 1 set

5V stepper motor+ULN2003 drive board five wire four phase/stepper motor drive board/test board 1 set

Efficiency 97.5% DC-DC voltage reduction module 6-20V 12V20V to 5V3A

3.7V to 12V mini DC-DC boost module supports 5V/8V/9V/12V output lithium battery boost

Double sided tin plating with a thickness of 1.5 high-quality fiberglass board, tin spraying experimental board, PCB 2.54 spacing hole board...