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Voltage and current detectors

Overview

*1. Function Introduction
1. Accurately measures input voltage and current
2. Wide voltage measurement capability, maximum measurement voltage is 30V 2A
3. Maximum input voltage is 40V
*2. Project Attributes
: LCSC Training Camp
*3. Open Source License
: GPL 3.0
*4. Hardware:

The step-down circuit here has a 12V input and 5V output

to reduce measurement voltage error. A TL431 is used to build the calibration circuit.

*5. PCB Part

*6. Software:
The corresponding example code can be downloaded from the CW32 official website. (

Uploaded as an attachment for download.)

Design Files

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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:2026-03-28 02:33:26

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