#The 7th Lichuang Electric Competition#N32 Ammeter

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please fill it out during the registration stage↓
 
* 1. The project function introduction
is modified from the official case of N32. I am a novice and I drew it all according to the manual. The design voltage of this table is 4.5v~30v, and the current is <5a.
After testing 10v 10a, it generates huge heat. Don't try it easily! ! !
The design error of Type-c part will not be able to activate PD fast charging normally in the later stage. PD charging is just a decoration QAQ
 
*2. Project attributes
This is the first time I have done this. Please forgive me if it is not done well QAQ
 
* 3. The open source agreement
is written casually, it doesn't matter.
 
*4. The hardware part
is made using the official case, using N32's MCU, INA199A's current detection chip and voltage divider resistor to obtain data, and display relevant information on the OLED screen.
Please ask other students to complete the individual welding parts together.
The design error of Type-c leads to the inability to continuously fast charge and PD cannot be used! ! !
But VOOC can be activated! ! !
*5. The software part
is still copied from the official case, and the official clock source is changed to an external crystal oscillator.
The crystal oscillator circuit can be deleted.
The OLED display needs to be modified in two or three places before it can display normally.
 
More details: https://diy.szlcsc.com/posts/d76d9cb41705430e9a54e7a5feed07a5