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MQ-2 sensor acquisition circuit

Overview

MQ-2 detection principle explanation, MQ-2 acquisition circuit analysis and design, comparator LM339 data manual analysis, circuit design, MQ-2 acquisition module circuit schematic diagram drawing. MQ-2 detects circuit board PCB board drawing and is used by Lichuang EDA (layout, wiring, copper pouring, board edge design, importing QR code settings, etc.). Live recording video : 2020-08-18 Live video content includes: explanation of MQ-2 detection principle, MQ-2 acquisition circuit analysis and design, comparator LM339 data manual analysis, circuit design, MQ-2 acquisition module circuit schematic diagram drawing, Selection and calculation of light-emitting diode current limiting resistor. Live recording: https://www.bilibili.com/video/BV1fA411J7y1

Live recording video : 2020-08-19 Live video content includes: MQ-2 detection circuit board PCB board drawing, use of Lichuang EDA (layout, wiring, copper laying, board edge design, import QR code settings, etc.). Live recording: https://www.bilibili.com/video/BV1AT4y1L77d

Live recording video : 2020-08-26 Live content: MQ-2 sensor acquisition circuit physical welding and debugging. Live recording: https://www.bilibili.com/video/BV1ti4y1M7w9/ WeChat picture_20200827211203.jpg

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:2025-05-24 15:29:53

EPM7128SLC84-15
[i=s]This post was last edited by paulhyde on 2014-9-15 09:14[/i] EPM7128SLC84-15
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