LMnx9c

#The7thLiChuangElectricityContest#USB power meter 5V

Overview

* 1. Introduction to project functions
: A USB ammeter based on N32G430C8L7+INA199 with an accuracy of 1%. It can check the current when the USB is working. This project is a 5V voltage power meter that does not support fast charging display.

*2. The project attributes
are public, and some official designs are used for reference and self-made

* 3. Open source agreement
GPL3.0
*4. The hardware part
uses the National Technology N32G430C8L7 model microcontroller, the Texas Instruments INA199 chip for current sampling, and the Torex XC6220 linear regulator to power the circuit.

*5. The software part

is developed using Keil5, and the code refers to the official case.

*7. Competition LOGO verification

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

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

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.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-05-23 08:05:19

Digital Audio Amplifier
Digital Audio Amplifier
zigbee
I would like to ask why my Zigbee emulator cannot connect to the computer, and the PL2303 driver installation in Windows also says there is a problem.
A little experience in getting started with MSP430 programming
I first came into contact with MSP430 at this time last year. At that time, I needed it for an internship outside. The first time I came into contact with MSP430F149, a relatively classic chip in MSP4
Program programming problem. . .
When programming the program with Jfash arm, the connection cannot be made. It shows 1 voltage is need, measured 0 voltage! Please cheak the power! I checked the resistors and capacitors of the periph
【Development and application based on NUCLEO-F746ZG motor】15. Mathematical model - voltage equation and electromagnetic torque equation
After the motor parameters are configured, we still need to learn several mathematical models. (1) Mathematical model of voltage equation.The circuit model of the voltage equation is as follows:Accord
51 MCU timer initial value calculator
51 MCU timer initial value calculator, very practical to make a small tool

Datasheet More

Circuits More