sigma

TWS charging case motherboard

Overview

Function

1) With Hall switch, it can realize opening and closing detection

Open a position and boost 5V to activate the headset
When the warehouse is full, the boost is turned off, and the chip enters low power consumption to maximize power saving.

2) Charging compartment low voltage protection, low battery will turn off the boost

This ensures that the voltage can be boosted for a short time every time the cover is opened, ensuring that the earphones can be activated without being affected by the power of the charging compartment.

3) Enter the warehouse and turn off the Bluetooth connection of the headset

This can be achieved even if the charging compartment is completely out of power, preventing the headset from accidentally turning on when the charging compartment is out of power. The headphones can also enter an ultra-low power mode. Unlike some headphone charging compartments that automatically turn on when the battery is out of power.

For detailed introduction, please refer to the following link

Give your cute headphones a complete home

The matching 3D printed shell has been uploaded as attachments to the program.

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-05-10 07:35:25

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