Papan Power Supply Modlue 3.3-8V Bluetooth Audio Amplifier CA-6928 LED

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Detail Papan Power Supply Modlue 3.3-8V Bluetooth Audio Amplifier CA-6928 LED

COMMON PROBLEM
1: Cannot search for blue
Generally, it is caused by power interference, so a filter circuit must be added to the power line
2: Bluetooth signal is too weak
Do not wire or coat the bottom of the Bluetooth module antenna, or there must be no metal shielding around the antenna.
3: The current is too loud
Generally, it is caused by power ground interference. It is recommended that the power amplifier cable should not be too long, and the Bluetooth ground and power ground should be separated.
Specifications:
Size:14*23MM
Package Included:1PCS