K2P Router USB Mod: DIY Voltage Regulator Boost

Upon the addition of a USB port to the K2P router, users have the option to integrate a compact adjustable voltage regulator module for enhanced power supply. It is crucial to note that the variable voltage of the module, if left unregulated, may pose a risk of damaging connected hard drives. Additionally, the module generates substantial heat, prompting consideration for a do-it-yourself (DIY) approach to implement a voltage regulator module.

Commence the process by creating a detailed hand-drawn diagram.

Proceed to place the diagram on the circuit board, subjecting it to corrosion with a circuit board etchant.

Allow sufficient time for the etching process to conclude.

Thoroughly rinse the board with tap water and meticulously wipe off any residual paint using alcohol.

Initiate the soldering process.

Conduct voltage checks in the idle state.

Introduce a load, ensuring voltage stability within the 5-volt range, with a current exceeding 1.3 amps.

Validate performance with a 1A dummy load and subsequently with a 2A dummy load.

The final assembly should present an integrated configuration.

Excess components can be stored for future use.

Post-installation, the router's USB port exhibits idle voltage.

Under load conditions, the power output surpasses 8 watts, showcasing commendable performance. 

This meticulous integration of the adjustable voltage regulator module enhances the router's capabilities significantly.