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#The 7th Lichuang Electric Competition#usb ammeter

Overview

* 1. Introduction to project functions
PD fast charging, power meter displays real-time charging current and voltage;
* 2. Project attributes
LiChuang summer training camp;

* 3. Open source agreement
GPL3.0

* 4. Hardware part
Power part
Actual measurement of output capacitor It is recommended to connect two 47uf in parallel, or replace with a larger capacitor;

Fast charging chip

Charging control

Current sampling

knob button

Vibration motor button feedback

* 5. The software part
will occupy the pit first, and come back after it is completed; At present, the basic functions are completed, because there is no test tool at hand, so it is impossible to fine-tune, so dig the pit first
* 6. BOM list
Open the project and download it directly.

* 7. Competition LOGO verification

* 8. Demonstrate your project and record it as a video and upload it

Design Files

IMG_6589.MP4

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Update:2025-06-20 01:09:40

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