USB to DC Jack Male Converter Cable 1 meter Electrical Wire tape This is a Yellow self-adhesive

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On again touch the second led which is connected to LEDB- stops glowing

decoupling & blocking of DC

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USB to DC Jack Male Converter Cable 1 meter Electrical Wire tape This is a Yellow self-adhesiveIn small electronic devices and equipment, the DC Plug Supply Socket is used to supply power to development boards, power supply converter PCBs, and other components. This is a standard sized barrel jack connector that has been used in the industry for a long time and has proven to be quite reliable. On the other side is a mini USB connector into which you can link your computer, power bank, or any other device to make the gadget you're charging