qoistoochee128

#The7thLiChuangElectricityContest#USB power meter

Overview

* 1. Project function introduction:
A USB ammeter made based on N32G430C8L7+INA199 with an accuracy of 1%. It can check the current when the USB is working and reserve a temperature and pressure interface. The input voltage is 4.75V-40V.
*2. The project properties
refer to the official case of the National Technology Training Camp to detect the real-time current of the USB interface.
* 3. Open source agreement
GPL 3.0

*4. The hardware part
is based on the national N32G430C8L7 main control chip. The ADC samples the INA199 output to calculate the current. The ADC samples the voltage between the voltage divider resistors to calculate the voltage value. The voltage and current are output to the 0.91-inch OLED display through SPI to realize real-time monitoring of voltage and current.
The schematic diagram and PCB are drawn by the fully online version of lceda professional version.
*5. The software
code part is written by keil5, and the code refers to the official case routine.
*6. Competition LOGO verification

* 7. Physical verification

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:2024-11-22 12:11:06

Watch JD Live and win a new Tektronix oscilloscope!
Has everyone watched the recent technical live broadcast ?Today I will share with you a live broadcast where you have a chance to win a new Tektronix TBS2000B oscilloscope!Click this link and fill in
[Silicon Labs BG22-EK4108A Bluetooth Development Review] Part 3: Bluetooth SoC - Blinky Code Functions and Framework
In the last evaluation, we learned about the Bluetooth protocol layering and host main protocol layer description, and learned about the reading and writing of Bluetooth BLE LED light services. This t
Using the HT48 MCU with the HT1621 LCD Controller
Using the HT48 MCU with the HT1621 LCD Controller
Application of power amplifier in the research of flexible piezoelectric ultrasonic transducer for auxiliary treatment of bone injury
Experiment name: Application of power amplifier based on flexible piezoelectric ultrasonic transducer in underwater radiation experiment Purpose: Aiming at the demand for long-term auxiliary treatment
How to configure LSM6DS3TR-C single and double click at the same time
Application scenario: For example, TWS single-click the next song; double-click the previous song.After SINGLE_DOUBLE_TAP is set to 1, theoretically both single and double tap detection are enabled at
MCU serial port sends data frame
It is rare to see information about how to send a frame of data in an interrupt mode. If you send a data frame in a waiting mode, it will waste time for a high-speed microcontroller. The following is

Datasheet More

Circuits More