Well pcb soldering was done it takes a lot of time just to fixing some issues like some times the some calculations are not correct idk the exact reason but I think due to the voltage fluctuation that happening and Ai is also concluding this so used two seprate baterry one to power the calculation and one to power the leds so the current drawn is lesser and also I switched from powering it using esp32 ( I know that’s sounds foolish but it is handy when u are doing it on breadboard I have breadboard powering thing but I accidentally burned by jack so I cant use that ) . Well I changed the powering to 3.7 v Battery that’s work good also I am using 3.7 for driving leds and using the 5v cvt for the main calculation well after that I soldered wires for the Inputs and soldered the cuts legs resistors to wire so that I can easily attch to the breadboard then I accidentally dropped the whole thing and accidentally broke one standoff and replace it with the middle one that took almost 10 mins as I have to resolder the carry ina dn out and subtract pins as I directly solder the resistors legs so there is no more extra length want to remove one standoff . Well I remember foggy what I did but I have done 2 pcb in this AND ALSO I AHVE TO RESOLDER MANY MANY times like first i try to directly solder led on pcb but I realised same power issue first pcb led work good until the second pcb led was connected it slike halfing of power to each so I then change to. Esp32 as the mediator like the calculator calculates and then gives the esp32 low level signals and esp32 will drive the leds like a driver but that also fails it was like using old car to tow the new car which is good condition also it was increasing in wires also then I ordered some transistors finally and use transistors I use separate baterry for leds and seprate for the calculator and I soldered everything wires and everything then connect it to the breadboard and finally this project is over .