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diff --git a/public/_images/measurement_board.jpg b/public/_images/measurement_board.jpg
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diff --git a/public/_sources/page0.rst.txt b/public/_sources/page0.rst.txt
index 5ad90bf099d99db6af555115877331b98284b1cf..a392f7a74d349adae804e362c10c3dba182f48dc 100644
--- a/public/_sources/page0.rst.txt
+++ b/public/_sources/page0.rst.txt
@@ -2,8 +2,6 @@
Premiere page
*************
-
-
.. image:: logo_ohmpi.JPG
diff --git a/public/_sources/page1.rst.txt b/public/_sources/page1.rst.txt
index 763f14749b6b7ec56bfbddbc0444e129368c7fa9..78d263b46f67d042b3672e3eb276d4abfed6c7ec 100644
--- a/public/_sources/page1.rst.txt
+++ b/public/_sources/page1.rst.txt
@@ -2,6 +2,12 @@
OhmPi V 1.01
**************
+The philosophy of Ohmpi
+******************************************
+The philosophy of Ohmpi V1.01 is to offer a multi electrode resistivity meter, from a set of commercially available electronic cards it is a resistivity meter limited to 32 electrodes only. It is limited to low-current injection, but suitable for small laboratory experiments and small field time monitoring
+
+
+
OS installation on a Raspberry Pi
******************************************
@@ -25,3 +31,24 @@ The measurement board must be printed using the PCB file (Source file repository
* Step no. 5: addition of both the ADS115 directly onto the header (pins must be plugged according to the figure) and the LM358N operational amplifiers (pay attention to the direction).
1-Kohm and 1.5-Kohm resistors apply to the divider bridge. If, for example, you prefer using a weaker or stronger power supply, it would be possible to adjust the divider bridge value by simply modifying these resistors. Once all the components have been soldered together, the measurement board can be connected to the Raspberry Pi and the battery terminal, according to Figure 9. Between the battery and the TX+ terminal of the measurement board, remember to place a fuse holder with a 1.5-A fuse for safety purposes.
+
+.. figure:: measurement_board.jpg
+ :width: 800px
+ :align: center
+ :height: 400px
+ :alt: alternate text
+ :figclass: align-center
+
+ Measurement circuit board assembly: a) printed circuit board, b) adding the 1-Kohm resistors ± 1%, c)adding the 1.5-Kohm resistors ± 1%, d) adding the black female 1 x 10 header and the 7-blue screw terminal block(2 pin, 3.5-mm pitch), e) adding the 50-ohm reference resistor ± 0.1%, and f) adding the ADS1115 and the LM358N low-power dual operational amplifiers
+
+.. figure:: measurement_board-2.jpg
+ :width: 800px
+ :align: center
+ :height: 700px
+ :alt: alternate text
+ :figclass: align-center
+
+ Measurement board installation with Raspberry Pi
+
+Current injection
+******************
\ No newline at end of file
diff --git a/public/index.html b/public/index.html
index 751afcd5c704b129b35d342df1ca47aa32b073f7..ea9055d209f01ae8535ff363096907b937225878 100644
--- a/public/index.html
+++ b/public/index.html
@@ -157,8 +157,10 @@
<ul>
<li class="toctree-l1"><a class="reference internal" href="page0.html"><strong>Introduction to OhmPi</strong></a></li>
<li class="toctree-l1"><a class="reference internal" href="page1.html">OhmPi V 1.01</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="page1.html#the-philosophy-of-ohmpi">The philosophy of Ohmpi</a></li>
<li class="toctree-l2"><a class="reference internal" href="page1.html#os-installation-on-a-raspberry-pi">OS installation on a Raspberry Pi</a></li>
<li class="toctree-l2"><a class="reference internal" href="page1.html#construction-of-the-measurement-board-and-connection-to-the-raspberry">Construction of the measurement board and connection to the Raspberry</a></li>
+<li class="toctree-l2"><a class="reference internal" href="page1.html#current-injection">Current injection</a></li>
</ul>
</li>
</ul>
diff --git a/public/page1.html b/public/page1.html
index 8db1b17c69e97ae363dd05921fb5a52842b66acc..3fd3aa06d0895fff7d531aa297ebb79a6199e70b 100644
--- a/public/page1.html
+++ b/public/page1.html
@@ -84,8 +84,10 @@
<ul class="current">
<li class="toctree-l1"><a class="reference internal" href="page0.html"><strong>Introduction to OhmPi</strong></a></li>
<li class="toctree-l1 current"><a class="current reference internal" href="#">OhmPi V 1.01</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="#the-philosophy-of-ohmpi">The philosophy of Ohmpi</a></li>
<li class="toctree-l2"><a class="reference internal" href="#os-installation-on-a-raspberry-pi">OS installation on a Raspberry Pi</a></li>
<li class="toctree-l2"><a class="reference internal" href="#construction-of-the-measurement-board-and-connection-to-the-raspberry">Construction of the measurement board and connection to the Raspberry</a></li>
+<li class="toctree-l2"><a class="reference internal" href="#current-injection">Current injection</a></li>
</ul>
</li>
</ul>
@@ -155,6 +157,10 @@
<div class="section" id="ohmpi-v-1-01">
<h1>OhmPi V 1.01<a class="headerlink" href="#ohmpi-v-1-01" title="Permalink to this headline">¶</a></h1>
+<div class="section" id="the-philosophy-of-ohmpi">
+<h2>The philosophy of Ohmpi<a class="headerlink" href="#the-philosophy-of-ohmpi" title="Permalink to this headline">¶</a></h2>
+<p>The philosophy of Ohmpi V1.01 is to offer a multi electrode resistivity meter, from a set of commercially available electronic cards it is a resistivity meter limited to 32 electrodes only. It is limited to low-current injection, but suitable for small laboratory experiments and small field time monitoring</p>
+</div>
<div class="section" id="os-installation-on-a-raspberry-pi">
<h2>OS installation on a Raspberry Pi<a class="headerlink" href="#os-installation-on-a-raspberry-pi" title="Permalink to this headline">¶</a></h2>
<p>The first step is to start up the Raspberry Pi board, including installation of an OS (operating system).
@@ -175,6 +181,17 @@ Raspbian GUI settings menu. Failure to carry out this task may cause damage to t
<li><p>Step no. 5: addition of both the ADS115 directly onto the header (pins must be plugged according to the figure) and the LM358N operational amplifiers (pay attention to the direction).</p></li>
</ul>
<p>1-Kohm and 1.5-Kohm resistors apply to the divider bridge. If, for example, you prefer using a weaker or stronger power supply, it would be possible to adjust the divider bridge value by simply modifying these resistors. Once all the components have been soldered together, the measurement board can be connected to the Raspberry Pi and the battery terminal, according to Figure 9. Between the battery and the TX+ terminal of the measurement board, remember to place a fuse holder with a 1.5-A fuse for safety purposes.</p>
+<div class="align-center figure" id="id1">
+<a class="reference internal image-reference" href="_images/measurement_board.jpg"><img alt="alternate text" src="_images/measurement_board.jpg" style="width: 800px; height: 400px;" /></a>
+<p class="caption"><span class="caption-text">Measurement circuit board assembly: a) printed circuit board, b) adding the 1-Kohm resistors ± 1%, c)adding the 1.5-Kohm resistors ± 1%, d) adding the black female 1 x 10 header and the 7-blue screw terminal block(2 pin, 3.5-mm pitch), e) adding the 50-ohm reference resistor ± 0.1%, and f) adding the ADS1115 and the LM358N low-power dual operational amplifiers</span><a class="headerlink" href="#id1" title="Permalink to this image">¶</a></p>
+</div>
+<div class="align-center figure" id="id2">
+<a class="reference internal image-reference" href="_images/measurement_board-2.jpg"><img alt="alternate text" src="_images/measurement_board-2.jpg" style="width: 800px; height: 700px;" /></a>
+<p class="caption"><span class="caption-text">Measurement board installation with Raspberry Pi</span><a class="headerlink" href="#id2" title="Permalink to this image">¶</a></p>
+</div>
+</div>
+<div class="section" id="current-injection">
+<h2>Current injection<a class="headerlink" href="#current-injection" title="Permalink to this headline">¶</a></h2>
</div>
</div>
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index 6ec839e1bdf192dc12767ff2aa53cf1173754575..e5698d4a2daf58c66b471edfc1edd3be1992bb98 100644
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