张小哥

INA226-USB voltage and current meter-power meter

Overview

The program code is being improved, after all, I have not learned C/C++ at all.

! ! ! Don't buy components exactly according to the BOM generated by Lichuang, don't ask me why. Buy according to the components on the PCB yourself! ! !

Measuring range: Recommended range 5~20V, 0~5A. Limit parameters 5~36V, 0~8A

You can go to github to directly download the V5.0 version of the Gerber board file and iBOM comparison to purchase components and welding.

iBOM link: https://ibom.55wk.cn/Power-Meter-V5.html

Github link: https://github.com/sakura-ushio/INA226_328P_USB-Power-Meter

After burning the program, press all three buttons on the right once and then power on again to initialize the internal values of the EEPROM.

Directly export Gerber layout using V5.0

V5.0 has been tested and passed. 5.0 adds D+D- voltage detection and modifies the screen installation method.

Currently, the three buttons on the left switch the screen brightness, D+D-voltage display, and whether the low-current screen is always on.

V1.0 version video link https://www.bilibili.com/video/BV1Ev411k7jA

V3.0 version video link https://www.bilibili.com/video/BV1Ea411w7dj

V5.0 version video link https://www.bilibili.com/video/BV11a411F7mX

Design Files

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Update:2025-05-23 04:42:02

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