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diff --git a/sphinx/build/doctrees/environment.pickle b/sphinx/build/doctrees/environment.pickle
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diff --git a/sphinx/build/doctrees/page1.doctree b/sphinx/build/doctrees/page1.doctree
index c780daf9bf725e13daceb77baa971a8e4ed8d346..cc52945d1f00a2bb81964df0242576520fe9ae8c 100644
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diff --git a/sphinx/build/html/_sources/page1.rst.txt b/sphinx/build/html/_sources/page1.rst.txt
index 67ac8b9349eaae10287d8b6dee48493743fe1e67..e8cf01ac6ba50bb9f96e3cc7246d07398e7b4cbd 100644
--- a/sphinx/build/html/_sources/page1.rst.txt
+++ b/sphinx/build/html/_sources/page1.rst.txt
@@ -44,9 +44,9 @@ OS installation
The first step is to start up the Raspberry Pi board, including installation of an OS (operating system).
For this step, the installation instructions are well described on the Raspberry website
-1- Watch the vidéo "how to set up your raspberry Pi" (https://www.youtube.com/watch?v=wjWZhV1v3Pk)
+1. Watch the vidéo "how to set up your raspberry Pi" (https://www.youtube.com/watch?v=wjWZhV1v3Pk)
-2- The authors recommend installing the latest stable and complete version of Raspbian by using NOOBS (a simple-to-use operating system installer).
+2. The authors recommend installing the latest stable and complete version of Raspbian by using NOOBS (a simple-to-use operating system installer).
.. note::
All the development tests were performed on Raspberry Pi 3 Model B, we used the following version of Raspbian:
@@ -61,7 +61,37 @@ For this step, the installation instructions are well described on the Raspberry
.. warning::
- Once the OS has been installed, the 1-wire option and GPIO remote option must be deactivated via the Raspbian GUI settings menu. Failure to carry out this task may cause damage to the relay shield cards during measurements.
+ Once the OS has been installed, **1-wire, spi and GPIO remote option** must be deactivated via the Raspbian GUI settings menu. Failure to carry out this task may cause damage to the relay shield cards during measurements.
+
+
+
+
+3. When the relays are connected to the GPIO, make sure that all the GPIOs are in the low position when the raspberry starts up. If not, the relays will activate unexpectedly.
+To ensure that the GPIOs are in Low position, you will need to modify the /boot/config.txt file.
+
+ Run the terminal, and write
+
+ .. code-block:: python
+
+ cd /boot/
+
+4. Open config.txt with GNU nano editor
+
+ .. code-block:: python
+
+ sudo nano config.txt
+
+5. At the end of the file write :
+
+ .. code-block:: python
+
+ gpio=8=op,dl
+ gpio=7=op,dl
+
+6. Press Ctrl +O to save the modifications and press enter
+7. Press Ctrl +x to escap and return to the terminal
+8. Close the terminal
+
Virtual Environnement and packages
diff --git a/sphinx/build/html/index.html b/sphinx/build/html/index.html
index c86e95779b08b3603323cec9c043b198129dd947..79c8d4c37e9428b40ac486b98e710beef8e54df5 100644
--- a/sphinx/build/html/index.html
+++ b/sphinx/build/html/index.html
@@ -159,7 +159,7 @@
<dd class="field-odd"><p>open hardware resistivity-meter</p>
</dd>
<dt class="field-even">Date</dt>
-<dd class="field-even"><p>Nov 27, 2020</p>
+<dd class="field-even"><p>Dec 11, 2020</p>
</dd>
<dt class="field-odd">Authors</dt>
<dd class="field-odd"><p><strong>Rémi CLEMENT, Nicolas FORQUET, Julien GANCE, Yannick FARGIER, Vivien DUBOIS, Hélène GUYARD</strong></p>
diff --git a/sphinx/build/html/page1.html b/sphinx/build/html/page1.html
index 9f9909903b24f6c208b45e4f63e69ee0b0b73b92..c99c05c81611b842b56da126bf630137a0846f38 100644
--- a/sphinx/build/html/page1.html
+++ b/sphinx/build/html/page1.html
@@ -249,8 +249,10 @@ control system</p></td>
<h3>OS installation<a class="headerlink" href="#os-installation" title="Permalink to this headline">¶</a></h3>
<p>The first step is to start up the Raspberry Pi board, including installation of an OS (operating system).
For this step, the installation instructions are well described on the Raspberry website</p>
-<p>1- Watch the vidéo “how to set up your raspberry Pi†(<a class="reference external" href="https://www.youtube.com/watch?v=wjWZhV1v3Pk">https://www.youtube.com/watch?v=wjWZhV1v3Pk</a>)</p>
-<p>2- The authors recommend installing the latest stable and complete version of Raspbian by using NOOBS (a simple-to-use operating system installer).</p>
+<ol class="arabic simple">
+<li><p>Watch the vidéo “how to set up your raspberry Pi†(<a class="reference external" href="https://www.youtube.com/watch?v=wjWZhV1v3Pk">https://www.youtube.com/watch?v=wjWZhV1v3Pk</a>)</p></li>
+<li><p>The authors recommend installing the latest stable and complete version of Raspbian by using NOOBS (a simple-to-use operating system installer).</p></li>
+</ol>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>All the development tests were performed on Raspberry Pi 3 Model B, we used the following version of Raspbian:</p>
@@ -260,8 +262,38 @@ For this step, the installation instructions are well described on the Raspberry
</div>
<div class="admonition warning">
<p class="admonition-title">Warning</p>
-<p>Once the OS has been installed, the 1-wire option and GPIO remote option must be deactivated via the Raspbian GUI settings menu. Failure to carry out this task may cause damage to the relay shield cards during measurements.</p>
+<p>Once the OS has been installed, <strong>1-wire, spi and GPIO remote option</strong> must be deactivated via the Raspbian GUI settings menu. Failure to carry out this task may cause damage to the relay shield cards during measurements.</p>
</div>
+<p>3. When the relays are connected to the GPIO, make sure that all the GPIOs are in the low position when the raspberry starts up. If not, the relays will activate unexpectedly.
+To ensure that the GPIOs are in Low position, you will need to modify the /boot/config.txt file.</p>
+<blockquote>
+<div><p>Run the terminal, and write</p>
+<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="n">cd</span> <span class="o">/</span><span class="n">boot</span><span class="o">/</span>
+</pre></div>
+</div>
+</div></blockquote>
+<ol class="arabic simple" start="4">
+<li><p>Open config.txt with GNU nano editor</p></li>
+</ol>
+<blockquote>
+<div><div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="n">sudo</span> <span class="n">nano</span> <span class="n">config</span><span class="o">.</span><span class="n">txt</span>
+</pre></div>
+</div>
+</div></blockquote>
+<ol class="arabic simple" start="5">
+<li><p>At the end of the file write :</p></li>
+</ol>
+<blockquote>
+<div><div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="n">gpio</span><span class="o">=</span><span class="mi">8</span><span class="o">=</span><span class="n">op</span><span class="p">,</span><span class="n">dl</span>
+<span class="n">gpio</span><span class="o">=</span><span class="mi">7</span><span class="o">=</span><span class="n">op</span><span class="p">,</span><span class="n">dl</span>
+</pre></div>
+</div>
+</div></blockquote>
+<ol class="arabic simple" start="6">
+<li><p>Press Ctrl +O to save the modifications and press enter</p></li>
+<li><p>Press Ctrl +x to escap and return to the terminal</p></li>
+<li><p>Close the terminal</p></li>
+</ol>
</div>
<div class="section" id="virtual-environnement-and-packages">
<h3>Virtual Environnement and packages<a class="headerlink" href="#virtual-environnement-and-packages" title="Permalink to this headline">¶</a></h3>
diff --git a/sphinx/build/html/searchindex.js b/sphinx/build/html/searchindex.js
index 5f96cf93f62283685b27748ffb293d85310b87b8..5adf59f14428ec09015e6564f3776b5fb4d70535 100644
--- a/sphinx/build/html/searchindex.js
+++ b/sphinx/build/html/searchindex.js
@@ -1 +1 @@
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Open source and open hardware resitivity-meter","<strong>OhmPi project</strong>","OhmPi V 1.01 (limited to 32 electrodes)"],titleterms:{IDE:2,The:2,activ:2,assembl:2,bienvenu:[],board:2,card:2,center:0,cett:[],configur:2,connect:2,construct:[],current:2,data:2,descript:2,developp:[],document:0,electr:2,electrod:2,environn:2,formul:[],four:2,frist:2,hardwar:0,imag:[],implement:2,implent:2,inastal:[],indic:[],initi:2,inject:2,instal:2,instruct:2,introduct:1,lien:[],limit:2,massembl:[],measur:2,mesur:2,meter:0,modif:[],multiplex:2,ohmpi:[0,1,2],onli:2,open:0,openalea:[],oper:2,packag:2,page:[],paramet:2,philosophi:2,preliminari:2,procedur:2,project:1,python:2,rapberri:2,raspberri:2,resist:2,resit:0,run:[],second:[],sourc:0,startup:2,step:[],summari:0,sur:[],tabl:[],technic:2,text:[],thonni:2,virtual:2,welcom:[]}})
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diff --git a/sphinx/source/page1.rst b/sphinx/source/page1.rst
index f1a9459a3535f6831cf703f91a94bfa68fcc7baa..e8cf01ac6ba50bb9f96e3cc7246d07398e7b4cbd 100644
--- a/sphinx/source/page1.rst
+++ b/sphinx/source/page1.rst
@@ -44,9 +44,9 @@ OS installation
The first step is to start up the Raspberry Pi board, including installation of an OS (operating system).
For this step, the installation instructions are well described on the Raspberry website
-1- Watch the vidéo "how to set up your raspberry Pi" (https://www.youtube.com/watch?v=wjWZhV1v3Pk)
+1. Watch the vidéo "how to set up your raspberry Pi" (https://www.youtube.com/watch?v=wjWZhV1v3Pk)
-2- The authors recommend installing the latest stable and complete version of Raspbian by using NOOBS (a simple-to-use operating system installer).
+2. The authors recommend installing the latest stable and complete version of Raspbian by using NOOBS (a simple-to-use operating system installer).
.. note::
All the development tests were performed on Raspberry Pi 3 Model B, we used the following version of Raspbian:
@@ -64,6 +64,36 @@ For this step, the installation instructions are well described on the Raspberry
Once the OS has been installed, **1-wire, spi and GPIO remote option** must be deactivated via the Raspbian GUI settings menu. Failure to carry out this task may cause damage to the relay shield cards during measurements.
+
+
+3. When the relays are connected to the GPIO, make sure that all the GPIOs are in the low position when the raspberry starts up. If not, the relays will activate unexpectedly.
+To ensure that the GPIOs are in Low position, you will need to modify the /boot/config.txt file.
+
+ Run the terminal, and write
+
+ .. code-block:: python
+
+ cd /boot/
+
+4. Open config.txt with GNU nano editor
+
+ .. code-block:: python
+
+ sudo nano config.txt
+
+5. At the end of the file write :
+
+ .. code-block:: python
+
+ gpio=8=op,dl
+ gpio=7=op,dl
+
+6. Press Ctrl +O to save the modifications and press enter
+7. Press Ctrl +x to escap and return to the terminal
+8. Close the terminal
+
+
+
Virtual Environnement and packages
==================================