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#The7thLiChuangElectricityContest#USB power meter

Overview

The USB ammeter made according to the training camp course can check the current/voltage when the USB is working. The original circuit has been partially modified and does not support fast charging.

Referring to the training camp circuit diagram, the circuit was partially modified, USB data connection and two LED lights were added, and the PCB diagram was drawn and printed.

It is a bit uncomfortable to switch from the standard version to the professional version. The main problem is that the local and network are not synchronized.
1. Draw the board, the board of LiChuang, you can use it with confidence.

2. Buy national chips, the mall will reduce 50 for 100. Buy 20P directly for future study. Use the coupons of the training camp to buy some resistors, capacitors, etc.

4. After calibrating the voltage and current, install the shell and use it.

Design Files

ProProject_#The 7th LiChuang Electric Competition#USB Power Meter.zip

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Update:2025-05-19 22:45:11

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