F01pHHEC

#The 7th Lichuang Electric Competition#usb-ammeter

Overview

Note: * is a required field,
please fill it in during the registration stage↓

* 1. Project function introduction
4.75--25V; 0-5A can be measured

* 2. Project attributes
LiChuang training camp

* 3. Open source agreement,

please fill it in during the competition stage↓

*4. Hardware part
PCB uses Jia LiChuang EDA to design
the current sampling using TI's INA199 current sensor amplifier, the sampling method is low-side sampling
The voltage sampling part consists of a series voltage divider circuit composed of two resistors
. 4 buttons are reserved for later expansion. The three-channel sampling voltage can sample D+D- and input voltage respectively

*5. Software part

*6. BOM list

*7. Competition LOGO verification

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

it for more details: https://diy.szlcsc.com/posts/d76d9cb41705430e9a54e7a5feed07a5

Design Files

QQ video_40f32ff20143afaae41e9a6942355b761662634262.mp4

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-06-19 13:31:02

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