Building my own development board

Thread Starter


Joined Feb 26, 2021
Hello everyone i am an Italian student and i am currently working on making my custom development board which is based around the PIC18f2550. I have a problem designing the power scheme. I have basically 2 power sources (DC jack and the usb) and i want to prioritize the Jack barrel supply(when the DC jack can provide a voltage the board takes the supply voltage from the jack and not the usb). Some people suggested me to use the exact same circuit The Arduino Uno board uses and i don't think i have done it right so can anyone correct me if i have done something wrong? Also it would be appreciated if other tips will be given in regard to the board in general.