#The 7th LiChuang Electric Competition# [2022 Summer Training Camp, LiChuang Electric Competition] USB voltage and current meter

Note: * is a required field,
please fill it in during the registration stage↓
 
* 1. Project function introduction
Please enter the content... USB voltage, current and power meter based on N32G430C8L7, using 24P full-pin male and female sockets, full blood 3.1, 24P line all routed, retaining the lightning protocol communication capability
(impedance is not matched, equal length routing, you need to paste aluminum shielding to avoid RXTX signal interference)
The overall modular design is adopted, and the 3.3V power supply can be freely changed from LDO to DCDC, or the sampling circuit can be replaced, etc. Multiple groups of idle IIC/ADC interfaces are introduced, and other functions such as temperature measurement can be added through flying lines.
 
*2. Project attributes
Original project.
* 3. Open source agreement
GPL3.0
*4. The hardware part
is based on the N32G430C8L7 main control, and the power supply uses SE8633LDO, which supports up to 80V input to ensure safety. The current detection supports INA199/226. The overall structure uses a multi-layer stacking design, retains 24P full pins, supports the measurement of Thunderbolt hard disk boxes, etc. The bias hardware position is reserved and can be changed to support bidirectional functions.
*5. The software part
uses an unofficial solution, the code is slightly modified, and the screen can be turned on by flashing the official solution
 
*6. BOM list
 
*7. Competition LOGO verification
 
* 8. Demonstrate your project and record it as a video and upload it