Using MT3608 module is very simple by looking at the pinout described in the image above you can connect an input voltage from 2V to 24V DC. The input source can be a battery or solar cell or any other source available. After connecting the input voltage take a digital multimeter and select above 28V from the digital multimeter voltage selection panel and connect the digital multimeter from the output voltage points of the module then adjust the variable resistor until the multimeter shows your desired output voltage. Because you have moved the current resistor _before_ the voltage regulation network, once the regulator is turned on, the output voltage will be exactly where you want it. Explicitly said: the current regulation network will see a lowered voltage because of your added resistor and will increase the output to compensate for the voltage drop caused by it. That’s its job. When I power my RPi, it boots but then it enters on a boot-loop which is reported to be caused by low voltage (see: https://elinux.org/R-Pi_Troubleshooting#Raspberry_Pi_shuts_down_.28or_restarts.29_soon_after_booting_up). Another thing to mention when working with power modules like converters is that they will burn out if the current goes too high. I believe that you have already understood that from the step above, but how to protect the IC from the high current? MANY other softwares out there for making one's own PCB's (which i would NEVER charge anyone to help make their own PCB's, after all, its just the board designs of simple modules so if one ever wants a hand in doing so, lemmi know !!)

Took me a WHILE to get this all down as I'm dyslexic so please do expect a few mistakes here & there by me, lol, but i hope this helps with component selection going forwards from specific data laid out in the manufacturer's datasheets to have a lot more options available to those whom love making their own PCB's how did you make that 3D Render - did you do it yourself with a software/s like the Eagle software with Eagle-Up plugin and 2 other softwares to show us our own Schematic/PCB designs in glorious 3D as your rendering is.

Nice touch, a limitation: as mentioned, it introduces a voltage drop of 0.65 V (or so). This voltage drop is current dependent, so you can’t really regulate this away easily using the variable resistor.

The module is using very less amount of components and the main component of the module is MT3608 IC. MT3608 is a highly efficient voltage booster IC with many built in features like over heat protection, low quiescent current, soft start function, low external components, overheat shutdown etc. Other components used in this module are two ceramic capacitors, one variable resistor, one resistor and one schottky diod and a 22uH inductor which is an important part of all voltage booster circuits. For any electronics project, we require a power source. In our previous article How to Run an ESP32 on Battery, we have discussed about the challenges with direct powering with battery. As most of the projects require 3.3V DC to 5V DC, we need some system which can be charged with a mobile charger and the output voltage can be adjusted for different configurations of the power supply plans. Building a DIY power bank with TP4056 and MT3608 is cheap and easy (the matter is about joining the modules). The components you need to build this DIY power bank are :BUT the most impressive is YOUR 3D RENDERING of this module - PLEASE Please please could i kindly beg you; The MT3608 is a constant frequency, 6-pin SOT23 current mode step-up converter intended for small, low power applications. The MT3608 switches at 1.2MHz and allows the use of tiny, low cost capacitors and inductors 2mm or less in height. Internal soft-start results in small inrush current and extends battery life. A boost converter(DC-DC step-up converter) is used to step up a lower voltage to a higher voltage level with quite a simple circuitry. It is a type of switch-mode power supply as it uses a switching device to regulate the voltage. In our case, the switching module is the MT3608 IC which has a high switching frequency of 1.2MHz. The higher switching frequency also opens up the possibilities to use smaller indicators making the module compact and also providing high power output simultaneously.