Arduino Voltmeter

March 13, 2018June 10, 2018
by RoboCircuits

RoboCircuits

Work on a YouTube channel. Https://YouTube.com/RoboCircuits

robocircuits@gmail.com

COMPONENTS AND SUPPLIES

Arduino Nano R3

Breadboard (generic)

Adafruit Standard LCD – 16×2 White on Blue

Jumper wires (generic)

ABOUT THIS PROJECT

Arduino Digital Voltmeter is a digital voltmeter which can measure voltage upto 5V.

Watch this video for detailed Information…

CODE

Arduino Code for Arduino Digital VoltmeterC/C++

this is the code for digital voltmeter

<span id="line-1"><span class="cp">#include</span><span class="cpf">&lt;LiquidCrystal.h&gt;</span>
</span><span id="line-2"><span class="n">LiquidCrystal</span> <span class="nf">lcd</span><span class="p">(</span><span class="mi">12</span><span class="p">,</span><span class="mi">11</span><span class="p">,</span><span class="mi">5</span><span class="p">,</span><span class="mi">4</span><span class="p">,</span><span class="mi">3</span><span class="p">,</span><span class="mi">2</span><span class="p">);</span>
</span><span id="line-3"><span class="kt">int</span> <span class="n">analogPin</span><span class="o">=</span><span class="mi">1</span><span class="p">;</span>
</span><span id="line-4"><span class="kt">void</span> <span class="nf">setup</span><span class="p">()</span>
</span><span id="line-5"><span class="p">{</span>
</span><span id="line-6">  <span class="n">lcd</span><span class="p">.</span><span class="n">begin</span><span class="p">(</span><span class="mi">16</span><span class="p">,</span><span class="mi">2</span><span class="p">);</span>
</span><span id="line-7"><span class="p">}</span>
</span><span id="line-8"><span class="kt">void</span> <span class="nf">loop</span><span class="p">()</span>
</span><span id="line-9"><span class="p">{</span>
</span><span id="line-10">  <span class="kt">int</span> <span class="n">v</span><span class="o">=</span><span class="n">analogRead</span><span class="p">(</span><span class="n">analogPin</span><span class="p">);</span>
</span><span id="line-11">  <span class="n">voltage</span><span class="o">=</span><span class="n">v</span><span class="o">/</span><span class="mi">1023</span><span class="o">*</span><span class="mf">5.0</span><span class="p">;</span>
</span><span id="line-12">  <span class="n">lcd</span><span class="p">.</span><span class="n">print</span><span class="p">(</span><span class="s">"voltage="</span><span class="p">);</span>
</span><span id="line-13">  <span class="n">lcd</span><span class="p">.</span><span class="n">print</span><span class="p">(</span><span class="n">voltage</span><span class="p">);</span>
</span><span id="line-14">  
</span><span id="line-15"><span class="p">}</span>
</span>

				
					
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						<span id="line-1"><span class="cp">#include</span><span class="cpf">&lt;LiquidCrystal.h&gt;</span>
</span><span id="line-2"><span class="n">LiquidCrystal</span> <span class="nf">lcd</span><span class="p">(</span><span class="mi">12</span><span class="p">,</span><span class="mi">11</span><span class="p">,</span><span class="mi">5</span><span class="p">,</span><span class="mi">4</span><span class="p">,</span><span class="mi">3</span><span class="p">,</span><span class="mi">2</span><span class="p">);</span>
</span><span id="line-3"><span class="kt">int</span> <span class="n">analogPin</span><span class="o">=</span><span class="mi">1</span><span class="p">;</span>
</span><span id="line-4"><span class="kt">void</span> <span class="nf">setup</span><span class="p">()</span>
</span><span id="line-5"><span class="p">{</span>
</span><span id="line-6">  <span class="n">lcd</span><span class="p">.</span><span class="n">begin</span><span class="p">(</span><span class="mi">16</span><span class="p">,</span><span class="mi">2</span><span class="p">);</span>
</span><span id="line-7"><span class="p">}</span>
</span><span id="line-8"><span class="kt">void</span> <span class="nf">loop</span><span class="p">()</span>
</span><span id="line-9"><span class="p">{</span>
</span><span id="line-10">  <span class="kt">int</span> <span class="n">v</span><span class="o">=</span><span class="n">analogRead</span><span class="p">(</span><span class="n">analogPin</span><span class="p">);</span>
</span><span id="line-11">  <span class="n">voltage</span><span class="o">=</span><span class="n">v</span><span class="o">/</span><span class="mi">1023</span><span class="o">*</span><span class="mf">5.0</span><span class="p">;</span>
</span><span id="line-12">  <span class="n">lcd</span><span class="p">.</span><span class="n">print</span><span class="p">(</span><span class="s">"voltage="</span><span class="p">);</span>
</span><span id="line-13">  <span class="n">lcd</span><span class="p">.</span><span class="n">print</span><span class="p">(</span><span class="n">voltage</span><span class="p">);</span>
</span><span id="line-14">  
</span><span id="line-15"><span class="p">}</span>
</span>

					

			

SCHEMATICS

circuit diagram

DOWNLOAD

This is the circuit diagram of Arduino Digital Voltmeter…

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COMPONENTS AND SUPPLIES

ABOUT THIS PROJECT

Arduino Digital Voltmeter is a digital voltmeter which can measure voltage upto 5V.

CODE

Arduino Code for Arduino Digital VoltmeterC/C++

SCHEMATICS

circuit diagram

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COMPONENTS AND SUPPLIES

ABOUT THIS PROJECT

Arduino Digital Voltmeter is a digital voltmeter which can measure voltage upto 5V.

CODE

Arduino Code for Arduino Digital VoltmeterC/C++

SCHEMATICS

circuit diagram

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