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master 144-create-testing-framework-for-tests-automation EGU23 MB.2024.ter_restored MUX_board_v2024 Refactor_mb_2023 battery_charger board_v4 code_refactor dev/dummy mqtt update_V2023 v2024_rc v2025_alpha v2024.0.34 v2024.0.33 v2024.0.32 v2024.0.31 v2024.0.30 v2024.0.29 v2024.0.28 v2024.0.27 v2024.0.26 v2024.0.25 v2024.0.24 v2024.0.23 v2024.0.22 v2024.0.21 v2024.0.20 v2024.0.19 v2024.0.18 v2024.0.17 v2024.0.16 v2024.0.15 v2024.0.14 v2024.0.13 v2024.0.12 v2024.0.11 v2024.0.10 v2024.0.9 v2024.0.8 v2024.0.7 v2024.0.0 v2023.0.1 v2023.0.0 archives/mqtt
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public/Ohmpi_V2_00/V2_00_step_03.html
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......@@ -47,7 +47,7 @@
<li class="toctree-l3"><a class="reference internal" href="V2_00_step_02.html"><strong>STEP n°2</strong>: Measurement board</a></li>
<li class="toctree-l3 current"><a class="current reference internal" href="#"><strong>STEP n°3</strong>: MUX board</a><ul>
<li class="toctree-l4"><a class="reference internal" href="#part-a-assembly-of-mux-board"><strong>PART A</strong> Assembly of MUX board</a></li>
<li class="toctree-l4"><a class="reference internal" href="#part-b-test-of-mux-board"><strong>PART B</strong> Test of MUX board</a></li>
<li class="toctree-l4"><a class="reference internal" href="#part-b-mux-board-address"><strong>PART B</strong> MUX board address</a></li>
</ul>
</li>
</ul>
......@@ -83,12 +83,18 @@
<div class="section" id="step-n3-mux-board">
<h1><strong>STEP n°3</strong>: MUX board<a class="headerlink" href="#step-n3-mux-board" title="Permalink to this headline"></a></h1>
<p>The multiplexing of the channels is a mechanical multiplexing based on OMRON’s manufacturing relays (G5LE-1-VD 12 VDC). Each relay is combined with
a ZVN4206A power MOFSET. The raspberry has only 30 GPIOs, which is not enough to activate all the 64 electrodes, which represent 512 GPIOs.
We used gpio expender I2C (MCP23017). We have associated these components with an I2C muliplexer of type type TCA9548A from adafruit.
This combination allows to go up to 512 GPIOs and up to 128 electrodes. Each card has its own digital address between 0X70 and 0X77.
In the following presentation for an Ohmpi 64 electrodes, we will use the addresses 0X70 for channel A, 0X71 for channel B, 0X72 for channel M and 0X73 for channel N.
0X73 for the N channel. 4 MUX board will be needed to multiplex an Ohmpi 64 electrodes.</p>
<div class="section" id="part-a-assembly-of-mux-board">
<h2><strong>PART A</strong> Assembly of MUX board<a class="headerlink" href="#part-a-assembly-of-mux-board" title="Permalink to this headline"></a></h2>
<div class="section" id="required-components">
<h3>Required components<a class="headerlink" href="#required-components" title="Permalink to this headline"></a></h3>
<div class="align-center figure">
<a class="reference internal image-reference" href="../_images/MUX_board_componement.jpg"><img alt="alternate text" src="../_images/MUX_board_componement.jpg" style="width: 600px; height: 450px;" /></a>
<a class="reference internal image-reference" href="../_images/MUX_board_componement.jpg"><img alt="alternate text" src="../_images/MUX_board_componement.jpg" style="width: 600px; height: 650px;" /></a>
</div>
<table class="colwidths-given docutils align-default" id="id1">
<caption><span class="caption-text">List of components</span><a class="headerlink" href="#id1" title="Permalink to this table"></a></caption>
......@@ -256,12 +262,6 @@
</tr>
</tbody>
</table>
<p>The multiplexing of the channels is a mechanical multiplexing based on OMRON’s manufacturing relays (G5LE-1-VD 12 VDC). Each relay is combined with
a ZVN4206A power MOFSET. The raspberry has only 30 GPIOs, which is not enough to activate all the 64 electrodes, which represent 512 GPIOs.
We used gpio expender I2C (MCP23017). We have associated these components with an I2C muliplexer of type type TCA9548A from adafruit.
This combination allows to go up to 512 GPIOs and up to 128 electrodes. Each card has its own digital address between 0X70 and 0X77.
In the following presentation for an Ohmpi 64 electrodes, we will use the addresses 0X70 for channel A, 0X71 for channel B, 0X72 for channel M and 0X73 for channel N.
0X73 for the N channel. 4 MUX board will be needed to multiplex an Ohmpi 64 electrodes.</p>
<table class="docutils align-center">
<colgroup>
<col style="width: 12%" />
......@@ -416,10 +416,100 @@ In the following presentation for an Ohmpi 64 electrodes, we will use the addres
</tr>
</tbody>
</table>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>This step must be duplicated 4 times for every Mux card.</p>
</div>
</div>
<div class="section" id="part-b-test-of-mux-board">
<h2><strong>PART B</strong> Test of MUX board<a class="headerlink" href="#part-b-test-of-mux-board" title="Permalink to this headline"></a></h2>
</div>
<div class="section" id="part-b-mux-board-address">
<h2><strong>PART B</strong> MUX board address<a class="headerlink" href="#part-b-mux-board-address" title="Permalink to this headline"></a></h2>
<p>To build an ohmpi it is necessary to have 4 MUX boards, with 4 different addresses. It is therefore necessary to identify each board, by assigning an address, which will be allocated in the Ohmpi code.
We present here the addresses selected by default.</p>
<p>For the A electrode board, we suggest addressing it with address 0x70:</p>
<table class="docutils align-center">
<colgroup>
<col style="width: 12%" />
<col style="width: 88%" />
</colgroup>
<tbody>
<tr class="row-odd"><td rowspan="4"><p>1</p></td>
<td><img alt="../_images/A_0x70.jpg" src="../_images/A_0x70.jpg" />
</td>
</tr>
<tr class="row-even"><td><p>Mount the jumpers and note the value of the address and the
electrode name on the mux board (A).</p></td>
</tr>
<tr class="row-odd"><td><img alt="../_images/A_0x70-a.jpg" src="../_images/A_0x70-a.jpg" />
</td>
</tr>
<tr class="row-even"><td><p>Zoom on the jumper</p></td>
</tr>
</tbody>
</table>
<p>For the B electrode board, we suggest addressing it with address 0x71:</p>
<table class="docutils align-center">
<colgroup>
<col style="width: 12%" />
<col style="width: 88%" />
</colgroup>
<tbody>
<tr class="row-odd"><td rowspan="4"><p>2</p></td>
<td><img alt="../_images/B_0x71.jpg" src="../_images/B_0x71.jpg" />
</td>
</tr>
<tr class="row-even"><td><p>Mount the jumpers and note the value of the address and the
electrode name on the mux board (B).</p></td>
</tr>
<tr class="row-odd"><td><img alt="../_images/B_0x71-a.jpg" src="../_images/B_0x71-a.jpg" />
</td>
</tr>
<tr class="row-even"><td><p>Zoom on the jumper</p></td>
</tr>
</tbody>
</table>
<p>For the N electrode board, we suggest addressing it with address 0x72:</p>
<table class="docutils align-center">
<colgroup>
<col style="width: 12%" />
<col style="width: 88%" />
</colgroup>
<tbody>
<tr class="row-odd"><td rowspan="4"><p>3</p></td>
<td><img alt="../_images/M_0x72.jpg" src="../_images/M_0x72.jpg" />
</td>
</tr>
<tr class="row-even"><td><p>Mount the jumpers and note the value of the address and the
electrode name on the mux board (B).</p></td>
</tr>
<tr class="row-odd"><td><img alt="../_images/M_0x72-a.jpg" src="../_images/M_0x72-a.jpg" />
</td>
</tr>
<tr class="row-even"><td><p>Zoom on the jumper</p></td>
</tr>
</tbody>
</table>
<p>For the M electrode board, we suggest addressing it with address 0x73:</p>
<table class="docutils align-center">
<colgroup>
<col style="width: 12%" />
<col style="width: 88%" />
</colgroup>
<tbody>
<tr class="row-odd"><td rowspan="4"><p>4</p></td>
<td><img alt="../_images/N_0x73.jpg" src="../_images/N_0x73.jpg" />
</td>
</tr>
<tr class="row-even"><td><p>Mount the jumpers and note the value of the address and the
electrode name on the mux board (B).</p></td>
</tr>
<tr class="row-odd"><td><img alt="../_images/N_0x73-a.jpg" src="../_images/N_0x73-a.jpg" />
</td>
</tr>
<tr class="row-even"><td><p>Zoom on the jumper</p></td>
</tr>
</tbody>
</table>
</div>
</div>
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......@@ -216,7 +216,7 @@ control system</p></td>
<li class="toctree-l3"><a class="reference internal" href="Ohmpi_V2_00/V2_00_step_03.html#required-components">Required components</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="Ohmpi_V2_00/V2_00_step_03.html#part-b-test-of-mux-board"><strong>PART B</strong> Test of MUX board</a></li>
<li class="toctree-l2"><a class="reference internal" href="Ohmpi_V2_00/V2_00_step_03.html#part-b-mux-board-address"><strong>PART B</strong> MUX board address</a></li>
</ul>
</li>
</ul>
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**STEP n°3**: MUX board
****************************************************
The multiplexing of the channels is a mechanical multiplexing based on OMRON's manufacturing relays (G5LE-1-VD 12 VDC). Each relay is combined with
a ZVN4206A power MOFSET. The raspberry has only 30 GPIOs, which is not enough to activate all the 64 electrodes, which represent 512 GPIOs.
We used gpio expender I2C (MCP23017). We have associated these components with an I2C muliplexer of type type TCA9548A from adafruit.
This combination allows to go up to 512 GPIOs and up to 128 electrodes. Each card has its own digital address between 0X70 and 0X77.
In the following presentation for an Ohmpi 64 electrodes, we will use the addresses 0X70 for channel A, 0X71 for channel B, 0X72 for channel M and 0X73 for channel N.
0X73 for the N channel. 4 MUX board will be needed to multiplex an Ohmpi 64 electrodes.
**PART A** Assembly of MUX board
======================================================
......@@ -13,7 +18,7 @@ Required components
.. figure:: step_n_3/a/MUX_board_componement.jpg
:width: 600px
:align: center
:height: 450px
:height: 650px
:alt: alternate text
:figclass: align-center
......@@ -23,12 +28,6 @@ Required components
:widths: 30, 70, 70, 70, 70, 35, 35
:header-rows: 1
The multiplexing of the channels is a mechanical multiplexing based on OMRON's manufacturing relays (G5LE-1-VD 12 VDC). Each relay is combined with
a ZVN4206A power MOFSET. The raspberry has only 30 GPIOs, which is not enough to activate all the 64 electrodes, which represent 512 GPIOs.
We used gpio expender I2C (MCP23017). We have associated these components with an I2C muliplexer of type type TCA9548A from adafruit.
This combination allows to go up to 512 GPIOs and up to 128 electrodes. Each card has its own digital address between 0X70 and 0X77.
In the following presentation for an Ohmpi 64 electrodes, we will use the addresses 0X70 for channel A, 0X71 for channel B, 0X72 for channel M and 0X73 for channel N.
0X73 for the N channel. 4 MUX board will be needed to multiplex an Ohmpi 64 electrodes.
.. table::
:align: center
......@@ -140,7 +139,84 @@ In the following presentation for an Ohmpi 64 electrodes, we will use the addres
| |Installation of MCP23017 |
| | |
+--------+------------------------------------------------------------+
.. note::
This step must be duplicated 4 times for every Mux card.
**PART B** MUX board address
======================================================
To build an ohmpi it is necessary to have 4 MUX boards, with 4 different addresses. It is therefore necessary to identify each board, by assigning an address, which will be allocated in the Ohmpi code.
We present here the addresses selected by default.
**PART B** Test of MUX board
======================================================
For the A electrode board, we suggest addressing it with address 0x70:
.. table::
:align: center
+--------+------------------------------------------------------------+
| | .. image:: step_n_3/b/A_0x70.jpg |
| 1 +------------------------------------------------------------+
| |Mount the jumpers and note the value of the address and the |
| |electrode name on the mux board (A). |
| +------------------------------------------------------------+
| | .. image:: step_n_3/b/A_0x70-a.jpg |
| +------------------------------------------------------------+
| |Zoom on the jumper |
| | |
+--------+------------------------------------------------------------+
For the B electrode board, we suggest addressing it with address 0x71:
.. table::
:align: center
+--------+------------------------------------------------------------+
| | .. image:: step_n_3/b/B_0x71.jpg |
| 2 +------------------------------------------------------------+
| |Mount the jumpers and note the value of the address and the |
| |electrode name on the mux board (B). |
| +------------------------------------------------------------+
| | .. image:: step_n_3/b/B_0x71-a.jpg |
| +------------------------------------------------------------+
| |Zoom on the jumper |
| | |
+--------+------------------------------------------------------------+
For the N electrode board, we suggest addressing it with address 0x72:
.. table::
:align: center
+--------+------------------------------------------------------------+
| | .. image:: step_n_3/b/M_0x72.jpg |
| 3 +------------------------------------------------------------+
| |Mount the jumpers and note the value of the address and the |
| |electrode name on the mux board (B). |
| +------------------------------------------------------------+
| | .. image:: step_n_3/b/M_0x72-a.jpg |
| +------------------------------------------------------------+
| |Zoom on the jumper |
| | |
+--------+------------------------------------------------------------+
For the M electrode board, we suggest addressing it with address 0x73:
.. table::
:align: center
+--------+------------------------------------------------------------+
| | .. image:: step_n_3/b/N_0x73.jpg |
| 4 +------------------------------------------------------------+
| |Mount the jumpers and note the value of the address and the |
| |electrode name on the mux board (B). |
| +------------------------------------------------------------+
| | .. image:: step_n_3/b/N_0x73-a.jpg |
| +------------------------------------------------------------+
| |Zoom on the jumper |
| | |
+--------+------------------------------------------------------------+
public/searchindex.js
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