Use the provided schematic and PCB files and import them in EasyEDA

If you'd like to add your own features you could rewire the pins of the ESP32

Now is the time to decide if you want to order the PCB with the components already soldered to it.

I have deliberately used 1206 SMD components to allow for hand soldering if you feel up for it. You don't need a microscope for those

Add some M3 standoffs and use one of the spare PCBs as a base for stability

I recommend using some M3 standoffs to secure the TFT display in place. You could just leave it hanging but i do not recommend it

You'll find my ArduinoIDE software in the files of this project. Please feel free to modify it to suit your needs

I wouldn't mind a mention if you use it in any public way :)

Ensure that the display is working and that the INA3221 module is detected. 

Don't forget to solder one of the J pads, in order to set the Chip address

If you use 1% resistors calibration may not be necessary, however depending on the accuracy you need you may want to measure the exact value of the resistors. The INA3221 library supports software calibration

If you are a beginner like me and don't want to spend too much money of measuring devices, this might be the best way for you to achieve that.