Power Parameters showing on OLED


I am working on a project where I need to display the power consumption of different home appliances on an OLED. I have searched online but didn't get much help.

My plan is to use different sensors to measure the voltage and current consumption and then calculate power through it.

I have searched online and found this: https://www.pcbway.com/project/shar...ing_power_bank_0_91_OLED_Screen_7dee30cb.html

I am looking to design exactly the same thing, so someone could help here ???

Can you elaborate more?

What is your problem ?
1. How to display the data
2. How to do the calculation
3. where to buy the OLED

Also, which microcontroller are you using ?