黄土马家

Button switch panel

Overview

A simple button switch board controls the Bluetooth audio switch.

For filtering, a bunch of capacitors are added. The switch is an idle button switch. In order to use the PCB as a housing, the large hole and the round head of the button switch are designed to be symmetrical.

A 6v, 3a self-restoring fuse is added for circuit protection. Since this model module is not included in the schematic diagram, a 0r resistor is used instead, but the pads are the same.

An LED was added for the power indicator light. In order to reduce the brightness, a resistor with a larger resistance was used. It turns out that the 11k resistor can still light up. No wonder it was so bright with a resistor of several hundred ohms before.

1. Blank board display

2. What it looks like after welding

3. Add a blank pcb as the base

4. Add a blank pcb as the top board

Design Files

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