#LCSC Training Camp# CW32 Voltmeter/Ammeter 7574328A

1. Project Function Introduction:

The CW32 voltmeter and ammeter is a voltage and current measurement expansion board based on the CW32 development board.
 
2. Project Attributes:

This is the first time this project has been publicly disclosed. It is an original project and has not participated in any other competitions or academic defenses.
 
3. Open Source License:

This project follows the GPL 3.0 open source license.
 
4. Hardware Details

: See "Design Drawings". Two PCB designs were created:
The component layout for "plug-in" components is the same as for "surface mount" components. Because plug-in components are used as much as possible, no routing was performed. This will be addressed later.
The "surface mount" design uses surface mount components as much as possible; however, about half of the components are still plug-in components. The figure shows the plug-in components required for the two expansion boards.
 
5. Software Details

: See "Attachment 1".
Reference documents can be found in "CW32 Digital Voltmeter and Ammeter Training Camp Project Tutorial Document | LCSC Development Board Technical Document Center (lckfb.com)".
 
6. Bill of Materials (BOM)

: See "Attachment 2". If you want to export the BOM with one click, you need to purchase the LCSC development board and DC power cable separately.
If purchasing from scratch, the estimated cost for "plug-in" consumables is 103 yuan, and the estimated cost for "patch" is 102 yuan.