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diy-multimeter-08c0aa-en.md
Design something that helps you in designing some other.

EXPANDED TECHNICAL DETAILS

Multi-Function Diagnostic Dashboard

This project transforms an Arduino into a versatile electronic test bench, capable of measuring Voltage, Resistance, and Continuity.

  • Voltage Divider Ranging: Uses an analog input with a 5:1 voltage divider, allowing the Arduino (0-5V) to safely measure DC voltages up to 25V.
  • Resistance/Ohm-Meter Bridge: Captures the voltage drop across a test resistor to calculate its exact resistance using a built-in lookup table and Ohm's Law.
  • Acoustic Continuity Tester: Includes a low-latency "Beep" mode; when the resistance between probes is <10Ω, the Arduino instantly sounds a piezo buzzer.

Visualization

  • 16x2 I2C LCD Dashboard: Displays all three measurements simultaneously, with the firmware providing an "Auto-Select" mode based on which probes are currently in use.

ข้อมูล Frontmatter ดั้งเดิม 

title: "DIY Multimeter"
description: "Making your own lab equipment is fun!"
author: "Ameduino"
category: ""
tags:
  - "networks"
  - "arduino"
  - "multimeter"
  - "internet of things"
views: 12868
likes: 2
price: 1120
difficulty: "Intermediate"
components:
  - "1x Arduino UNO"
  - "1x Resistor 10k ohm"
  - "1x Resistor 1M ohm"
tools: []
apps:
  - "1x Arduino IDE"
downloadableFiles:
  - "https://projects.arduinocontent.cc/c233dcb5-0245-4946-bcf0-4603f2da438c.ino"
documentationLinks: []
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seoDescription: "Build your own DIY Multimeter. Creating custom lab equipment is fun and a great learning project."
videoLinks: []
heroImage: "https://cdn.jsdelivr.net/gh/bigboxthailand/arduino-assets@main/images/projects/diy-multimeter-08c0aa_cover.jpg"
lang: "en"