#The 7th LiChuang Electric Competition# A USB ammeter

Note: * is a required field,
please fill it out during the registration stage↓
 
* 1. The project function introduction
 
can be connected to the circuit in series via USB, so that the current voltage and current can be displayed intuitively
 
 
* 2. The project attribute
 
schematic diagram refers to the official case, and the PCB is drawn independently by yourself
 
 
* 3. The open source agreement
 
is fully open source
 
 
* 4. The hardware part
 
uses Jiali Chuang EDA to complete all the design work of this project, including the schematic diagram and PCB
 
* 5. The software part
 
uses the official software for burning, and the source file is provided by the official
 
* 6. BOM list
 
 
* 7. Demonstrate your project and record it as a video and upload
the demonstration video to the project attachment.
 
Unfinished matters:
1) Note that if you use the official program, please do not solder the external crystal oscillator
2) Because this ammeter is not connected to the data communication line, it cannot be fast charged
3) It is necessary to short-circuit the boot before burning and powering on. I use PWLINK2 for burning. Note that after connecting the DuPont line and inserting the USB interface, click Connect Device to proceed to the next step
4) The 0402 capacitor and resistor can be tinned before soldering the pins