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<!DOCTYPE html>
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<title>Prometheus/OpenMetrics - AI on the Edge Device</title>
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AI on the Edge Device
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Prometheus/OpenMetrics
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Welcome
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Installation
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Initial Setup
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Hardware Compatibility
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Best Practice
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Frequently Asked Questions
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Configuration
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Configuration
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Reference Image
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Alignment References
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ROIs (Regions of Interest)
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Graphical Configuration
</span>
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<a class="md-nav__link" href="../Choosing-the-Model/">
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Model Selection
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Over-The-Air (OTA) Update
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Advanced
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Parameters
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Integration into Home Assistant
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External LED
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Data Logging
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Living on the Edge
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Analog/Digital Transition on Water Meters
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Collect images to improve the models
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Learn a model with your own images
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Correction Algorithm
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Neural Network Types
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Additional Information
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Notification about new Releases
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Prometheus/OpenMetrics
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Prometheus/OpenMetrics
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Table of contents
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<a class="md-nav__link" href="#prometheus-scrape-config">1.1
<span class="md-ellipsis">
Prometheus Scrape Config
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<a class="md-nav__link" href="#references">1.2
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References
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Troubleshooting
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Troubleshooting
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Reduced webinterface (error codes)
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<a class="md-nav__link" href="../StatusLED-BlinkCodes/">
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Board status LED (blink codes)
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WLAN disconnect reasons
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Often observed issues
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Basic hardware/config issues
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Demo mode
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Releases
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Web Installer/Console
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Create an Issue
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API's
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API's
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REST API
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MQTT API
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Influx DB
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Webhook
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Development
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Development
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Build the Project
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Scripted File Upload
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Testing Option for VSCode
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Preparing for Release
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<a class="md-nav__link" href="#prometheus-scrape-config">1.1
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Prometheus Scrape Config
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<h1 id="prometheusopenmetrics"><span class="enumerate-headings-plugin enumerate-heading-plugin">1.</span> Prometheus/OpenMetrics</h1>
<p>A set of metrics is exported via the <code>/metrics</code> REST API path on the device. Besides the current value, a set of device properties are exported. Multiple sequences (aka <em>numbers</em>) are supported via a label. The metrics are provided in text wire format.</p>
<p>Example:</p>
<div class="language-bash highlight"><pre><span></span><code><span id="__span-0-1"><a href="#__codelineno-0-1" id="__codelineno-0-1" name="__codelineno-0-1"></a>$<span class="w"> </span>curl<span class="w"> </span>http://&lt;IP&gt;/metrics
</span><span id="__span-0-2"><a href="#__codelineno-0-2" id="__codelineno-0-2" name="__codelineno-0-2"></a><span class="c1"># HELP ai_on_the_edge_device_flow_value current value of meter readout</span>
</span><span id="__span-0-3"><a href="#__codelineno-0-3" id="__codelineno-0-3" name="__codelineno-0-3"></a><span class="c1"># TYPE ai_on_the_edge_device_flow_value gauge</span>
</span><span id="__span-0-4"><a href="#__codelineno-0-4" id="__codelineno-0-4" name="__codelineno-0-4"></a>ai_on_the_edge_device_flow_value<span class="o">{</span><span class="nv">sequence</span><span class="o">=</span><span class="s2">"main"</span><span class="o">}</span><span class="w"> </span><span class="m">240</span>.7064
</span><span id="__span-0-5"><a href="#__codelineno-0-5" id="__codelineno-0-5" name="__codelineno-0-5"></a><span class="c1"># HELP ai_on_the_edge_device_cpu_temperature_celsius current cpu temperature in celsius</span>
</span><span id="__span-0-6"><a href="#__codelineno-0-6" id="__codelineno-0-6" name="__codelineno-0-6"></a><span class="c1"># TYPE ai_on_the_edge_device_cpu_temperature_celsius gauge</span>
</span><span id="__span-0-7"><a href="#__codelineno-0-7" id="__codelineno-0-7" name="__codelineno-0-7"></a>ai_on_the_edge_device_cpu_temperature_celsius<span class="w"> </span><span class="m">41</span>
</span><span id="__span-0-8"><a href="#__codelineno-0-8" id="__codelineno-0-8" name="__codelineno-0-8"></a><span class="c1"># HELP ai_on_the_edge_device_rssi_dbm current WiFi signal strength in dBm</span>
</span><span id="__span-0-9"><a href="#__codelineno-0-9" id="__codelineno-0-9" name="__codelineno-0-9"></a><span class="c1"># TYPE ai_on_the_edge_device_rssi_dbm gauge</span>
</span><span id="__span-0-10"><a href="#__codelineno-0-10" id="__codelineno-0-10" name="__codelineno-0-10"></a>ai_on_the_edge_device_rssi_dbm<span class="w"> </span>-67
</span><span id="__span-0-11"><a href="#__codelineno-0-11" id="__codelineno-0-11" name="__codelineno-0-11"></a><span class="c1"># HELP ai_on_the_edge_device_memory_heap_free_bytes available heap memory</span>
</span><span id="__span-0-12"><a href="#__codelineno-0-12" id="__codelineno-0-12" name="__codelineno-0-12"></a><span class="c1"># TYPE ai_on_the_edge_device_memory_heap_free_bytes gauge</span>
</span><span id="__span-0-13"><a href="#__codelineno-0-13" id="__codelineno-0-13" name="__codelineno-0-13"></a>ai_on_the_edge_device_memory_heap_free_bytes<span class="w"> </span><span class="m">716303</span>
</span><span id="__span-0-14"><a href="#__codelineno-0-14" id="__codelineno-0-14" name="__codelineno-0-14"></a><span class="c1"># HELP ai_on_the_edge_device_uptime_seconds device uptime in seconds</span>
</span><span id="__span-0-15"><a href="#__codelineno-0-15" id="__codelineno-0-15" name="__codelineno-0-15"></a><span class="c1"># TYPE ai_on_the_edge_device_uptime_seconds gauge</span>
</span><span id="__span-0-16"><a href="#__codelineno-0-16" id="__codelineno-0-16" name="__codelineno-0-16"></a>ai_on_the_edge_device_uptime_seconds<span class="w"> </span><span class="m">214267</span>
</span><span id="__span-0-17"><a href="#__codelineno-0-17" id="__codelineno-0-17" name="__codelineno-0-17"></a><span class="c1"># HELP ai_on_the_edge_device_rounds_total data aquisition rounds since device startup</span>
</span><span id="__span-0-18"><a href="#__codelineno-0-18" id="__codelineno-0-18" name="__codelineno-0-18"></a><span class="c1"># TYPE ai_on_the_edge_device_rounds_total counter</span>
</span><span id="__span-0-19"><a href="#__codelineno-0-19" id="__codelineno-0-19" name="__codelineno-0-19"></a>ai_on_the_edge_device_rounds_total<span class="w"> </span><span class="m">239</span>
</span></code></pre></div>
<h2 id="prometheus-scrape-config"><span class="enumerate-headings-plugin enumerate-heading-plugin">1.1</span> Prometheus Scrape Config</h2>
<p>The following scrape config (add to <code>prometheus.yml</code>) can be used as an example to ingest available metrics with prometheus:</p>
<div class="language-text highlight"><pre><span></span><code><span id="__span-1-1"><a href="#__codelineno-1-1" id="__codelineno-1-1" name="__codelineno-1-1"></a>scrape_configs:
</span><span id="__span-1-2"><a href="#__codelineno-1-2" id="__codelineno-1-2" name="__codelineno-1-2"></a> - job_name: watermeter
</span><span id="__span-1-3"><a href="#__codelineno-1-3" id="__codelineno-1-3" name="__codelineno-1-3"></a> scrape_interval: 300s
</span><span id="__span-1-4"><a href="#__codelineno-1-4" id="__codelineno-1-4" name="__codelineno-1-4"></a> metrics_path: /metrics
</span><span id="__span-1-5"><a href="#__codelineno-1-5" id="__codelineno-1-5" name="__codelineno-1-5"></a> static_configs:
</span><span id="__span-1-6"><a href="#__codelineno-1-6" id="__codelineno-1-6" name="__codelineno-1-6"></a> - targets: ['&lt;IP&gt;']
</span></code></pre></div>
<h2 id="references"><span class="enumerate-headings-plugin enumerate-heading-plugin">1.2</span> References</h2>
<ul>
<li><a href="https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md">OpenMetrics</a></li>
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