update

index.html

@@ -230,7 +230,7 @@ <h1><a name="notebook"></a>Research Notebook</h1>
       <div class="text">
         <h3><a href="/notes/ham/">Notes on Ham Radio</a></h3>
         <p>Notes on Ham Radio</p>
-        <em>Updated: 2024-06-07</em>
+        <em>Updated: 2024-06-10</em>
       </div>
     </div>
   </div>

journal/32/index.html

@@ -0,0 +1,41 @@
+
+<!-- feed it through our cssmin filter to minify -->
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+</style>
+
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <link rel="shortcut icon" type="image/x-icon" href="/img/edge_favicon.png" />
+    <title>Grief and Pragmatism; ideas</title>
+    <meta name="description" content="How to approach the end of a way of living">
+    <meta property="og:title" content="Grief and Pragmatism; ideas" />
+    <!--<meta property="og:url" content="https://www.example.com/webpage/" /> -->
+    <meta property="og:description" content="How to approach the end of a way of living" />
+    <meta property="og:image" content="/img/placeholder.png" />
+    <link rel="image_src" href="/img/placeholder.png"> 
+  </head>
+  <body>
+
+    <div id='post-content'>
+
+  <h3><a href="/">Edge Collective</a></h3>
+    <h1>Grief and Pragmatism; ideas</h1>
+    <i>How to approach the end of a way of living</i>
+<hr>
+        <!-- <h1>Grief and Pragmatism; ideas</h1> -->
+
+
+  <h1>Mon Jun 10 06:14:20 PM EDT 2024</h1>
+<p>Gabriela
+Rafi
+Hine</p>
+<p>uv spec</p>
+
+
+    </div>
+  </body>
+</html>

journal/index.html

@@ -78,9 +78,23 @@ <h1>Journal</h1>
 Places to go near Dennis, MA (2024-04-21)</p>
 <p><b><a href="/journal/31/">Conviviality and the Romantic; Preparation</a></b>.
 Alternatives to an 'energy descent' infrastructure; what does preparedness look like? (2024-05-26)</p>
+<p><b><a href="/journal/32/">Grief and Pragmatism; ideas</a></b>.
+How to approach the end of a way of living (2024-06-10)</p>
 <!--
 <div class="posts-area">
 
+  <div class="post">
+    <div class="project-contents">
+      <div class="text">
+        <h2><a href="/journal/32/">Grief and Pragmatism; ideas</a></h2>
+        <p>How to approach the end of a way of living</p>
+        <p class=project-updated">
+        <em>Updated: 2024-06-10</em>
+        </p>
+      </div>
+    </div>
+  </div>
+
   <div class="post">
     <div class="project-contents">
       <div class="text">

notes/ham/index.html

@@ -718,6 +718,8 @@ <h1>Fri Jun  7 07:20:02 AM EDT 2024</h1>
 <p><a href="https://docs.monogoto.io/getting-started/general-device-configurations/iot-devices/simcom-sim7600g-h/waveshare-sim7600g-h">https://docs.monogoto.io/getting-started/general-device-configurations/iot-devices/simcom-sim7600g-h/waveshare-sim7600g-h</a></p>
 <p>connecting to arduino <a href="https://www.waveshare.com/wiki/7600X_connect_Arduino">https://www.waveshare.com/wiki/7600X_connect_Arduino</a></p>
 <p><img src="/img/ham/sim7600_arduino.png" alt=""></p>
+<h1>Mon Jun 10 06:33:06 PM EDT 2024</h1>
+<p>Datetime library for circuitpython <a href="https://github.com/adafruit/Adafruit_CircuitPython_datetime">https://github.com/adafruit/Adafruit_CircuitPython_datetime</a></p>
 
 
     </div>

projects/grassnomads/grassnomads_010/index.html

@@ -29,13 +29,68 @@ <h1>Upgrading the Power System</h1>
         <!-- <h1>Upgrading the Power System</h1> -->
 
 
-  <h1>Wed Jun  5 07:05:51 PM EDT 2024</h1>
-<p><img src="/img/ojofeliz/overall_circuit_transmitter_sensor.png" alt=""></p>
-<p><img src="/img/ojofeliz/transmit_box_labeled.png" alt=""></p>
-<p><img src="/img/ojofeliz/solar_box_cables.png" alt=""></p>
-<p><img src="/img/ojofeliz/solar_power_setup.jpeg" alt=""></p>
-<p><img src="/img/ojofeliz/dc_dc_labeled.png" alt=""></p>
-<p><img src="/img/ojofeliz/dc_dc_swap.png" alt=""></p>
+  <h2>Background</h2>
+<p>We had attempted to implement a solar-charged lead-acid battery system in order to deal with cold weather temperatures.</p>
+<p>An overview of our new system diagram can be seen in Fig. 0 below.</p>
+<table>
+<thead>
+<tr>
+<th style="text-align:center"><img src="/img/ojofeliz/overall_circuit_transmitter_sensor.png" alt=""></th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td style="text-align:center"><strong>Fig 0.</strong></td>
+</tr>
+</tbody>
+</table>
+<p>The lead-acid battery voltage is 12V;  but the transmitter box electronics requires a lower voltage -- something between 3V and 5V.</p>
+<p>We had therefore used a 'DC-DC Converter' (the circuit board highlighted with a green rectangle in Figure 1) to convert 12V down to 3.3V.</p>
+<p>After testing in the field, we found that 3.3V was insufficient;  5V is required.</p>
+<h2>Upgrade Procedure</h2>
+<p>So our plan now is to replace the current 3.3V DC-DC Converter with a 5V DC-DC converter (shown in Figure 2. below).</p>
+<p>The procedure requires:</p>
+<ol>
+<li>Removing the original 3.3V DC-DC converter by disconnecting or cutting the wires connecting it to the solar controller and the power-out cable (Cable 'PWR' in Fig 1.)</li>
+<li>Inserting the new 5V DC-DC converter by connecting its input wires ('A' and 'B' in Fig. 1) to the solar controller, and splicing its output wires ('C' and 'D' in Fig. 1) to the output power cable (Cable 'PWR' in Fig 1.)</li>
+<li>Connecting the power cable from the solar box (Cable 'PWR' in Fig 1.) to the transmitter box input (Cable 'PWR' in Fig 3.)</li>
+</ol>
+<table>
+<thead>
+<tr>
+<th style="text-align:center"><img src="/img/ojofeliz/solarbox_dcdc.png" alt=""></th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td style="text-align:center"><strong>Fig. 1.</strong></td>
+</tr>
+</tbody>
+</table>
+<table>
+<thead>
+<tr>
+<th style="text-align:center"><img src="/img/ojofeliz/dc_dc_labeled.png" alt=""></th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td style="text-align:center"><strong>Fig. 2.</strong></td>
+</tr>
+</tbody>
+</table>
+<table>
+<thead>
+<tr>
+<th style="text-align:center"><img src="/img/ojofeliz/transmitter_box_labeled.png" alt=""></th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td style="text-align:center"><strong>Fig. 3.</strong></td>
+</tr>
+</tbody>
+</table>
 
 
     </div>