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| layout: csq | ||
| title: CSQ | ||
| permalink: /csq | ||
| sequence: 6 | ||
| sequence: 7 | ||
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| # Lessons | ||
| lessons: | ||
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| --- | ||
| layout: start | ||
| title: Getting Started | ||
| title: Start | ||
| permalink: / | ||
| sequence: 1 | ||
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| --- | ||
| layout: power | ||
| title: Power | ||
| permalink: /power | ||
| sequence: 6 | ||
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| # Power | ||
| power: | ||
| tree: true | ||
| components: true | ||
| calculation: true | ||
| source: <code>380mAh</code> LiPo battery | ||
| battery_life: 5 days | ||
| charging_duration: 5 hours | ||
| charging_instruction: Plug in the USB cable to charge. <code>Yellow</code> LED will be on while it is charging. | ||
| --- | ||
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| <section class="section is-small"> | ||
| <div class="container"> | ||
| <h2 class="title is-1">Power consumption of main components</h2> | ||
| <table class="table is-fullwidth"> | ||
| <thead> | ||
| <tr> | ||
| <th>Chip #</th> | ||
| <th>Chip</th> | ||
| <th>Operating Voltage</th> | ||
| <th>Advertising mode (<code>152.5ms</code>)</th> | ||
| <th>Transmission mode</th> | ||
| </tr> | ||
| </thead> | ||
| <tbody> | ||
| <tr> | ||
| <td><a href="https://www.adafruit.com/product/3406">nRF52832</a></td> | ||
| <td>BLE + MCU</td> | ||
| <td><code>1.7v</code> to <code>3.3v</code></td> | ||
| <td><code>60 µA</code></td> | ||
| <td><code>216 µA</code></td> | ||
| </tr> | ||
| <tr> | ||
| <td><a href="https://www.vishay.com/docs/84304/veml6075.pdf">VEML6075</a></td> | ||
| <td>UV Sensor</td> | ||
| <td><code>1.7V</code> to <code>3.6V</code></td> | ||
| <td></td> | ||
| <td><code>480uA</code> at <code>1.8V</code></td> | ||
| </tr> | ||
| </tbody> | ||
| </table> | ||
| </div> | ||
| </section> | ||
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| <section class="section is-small"> | ||
| <div class="container"> | ||
| <h2 class="title is-1">Power calculation</h2> | ||
| <h3 class="title is-3">Advertising Mode</h3> | ||
| <p class="subtitle">From <a href="https://devzone.nordicsemi.com/nordic/power">online power profiler</a></p> | ||
| <div class="content"> | ||
| <ul> | ||
| <li>Chip <code>nRF52832</code></li> | ||
| <li>Voltage <code>3.3V</code></li> | ||
| <li>Radio TX Power <code>0dBm</code></li> | ||
| <li>Role: Advertising (Connectable)</li> | ||
| <li>TX payload (Byte)<code>0 byte</code></li> | ||
| <li>Advertising interval (ms): <code>152.5 ms</code> as recommended in <a href="https://developer.apple.com/library/archive/qa/qa1931/_index.html">Apple developer guide</a></li> | ||
| <li><code>120mAh</code> battery capacity</li> | ||
| </ul> | ||
| <img src="{{site.url}}/images/online-profiler-advertising.png" alt="Online profiler"> | ||
| <h3 class="title is-3">Transmission Mode</h3> | ||
| <p class="subtitle">From <a href="https://devzone.nordicsemi.com/nordic/power">online power profiler</a></p> | ||
| <div class="content"> | ||
| <ul> | ||
| <li>Voltage <code>3.3V</code></li> | ||
| <li>Role: Connection (peripheral)</li> | ||
| <li><code>3 byte</code> TX payload</li> | ||
| <li>Connection interval (ms): <code>1000 ms</code></li> | ||
| </ul> | ||
| <img src="{{site.url}}/images/online-profiler-peripheral.png" alt="Online profiler"> | ||
| </div> | ||
| <h3 class="title is-3">Summary</h3> | ||
| <div class="content"> | ||
| <ul> | ||
| <li>If transmitting 100% of the time: ~781 days</li> | ||
| <li>If advertising 100% of the time: ~83 days</li> | ||
| <li>if CPU running 100% of the time: ~12.5 hours</li> | ||
| </ul> | ||
| </div> | ||
| </div> | ||
| </div> | ||
| </section> | ||
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| <section class="section is-small"> | ||
| <div class="container"> | ||
| <h2 class="title is-1">Other potential batteries</h2> | ||
| <table class="table is-fullwidth"> | ||
| <thead> | ||
| <tr> | ||
| <th>Name</th> | ||
| <th>Capacity</th> | ||
| <th>Voltage</th> | ||
| <th>Dimension</th> | ||
| <th>Buy from</th> | ||
| </tr> | ||
| </thead> | ||
| <tbody> | ||
| <tr> | ||
| <td>CR2450</td> | ||
| <td><code>120mAh</code></td> | ||
| <td><code>3.6V</code></td> | ||
| <td><code>4cm</code> x <code>2cm</code>x <code>2cm</code></td> | ||
| <td><a href="https://www.aliexpress.com/item/Rainpro-2PCS-LOT-LIR2450-horizontal-welding-foot-battery-3-6V-rechargeable-coin-cell-battery-charging-2450/32853897751.html?spm=2114.search0104.3.8.189ed9beMuzTzf&ws_ab_test=searchweb0_0,searchweb201602_6_10065_10068_319_10059_10884_317_10887_10696_321_322_10084_453_10083_454_10103_10618_10307_537_536,searchweb201603_52,ppcSwitch_0&algo_expid=48ce131f-0f3b-433f-9bb9-f5874e08c121-1&algo_pvid=48ce131f-0f3b-433f-9bb9-f5874e08c121&transAbTest=ae803_4">AliExpress</a></td> | ||
| </tr> | ||
| <tr> | ||
| <td>LiPo</td> | ||
| <td><code>380mAh</code></td> | ||
| <td><code>3.7V</code></td> | ||
| <td><code>37mm</code> x <code>19mm</code> x <code>8mm</code></td> | ||
| <td><a href="https://www.aliexpress.com/item/Limskey-3-7V-380mAh-25C-Lipo-Battery-for-For-Hubsan-X4-H107-H107L-H107D-JD385-JD388/32846516934.html?spm=2114.search0103.3.69.12983204ovX5ra&ws_ab_test=searchweb0_0,searchweb201602_6_10065_10068_319_10059_10884_317_10887_10696_321_322_10084_453_10083_454_10103_10618_10307_537_536,searchweb201603_52,ppcSwitch_0&algo_expid=067ab389-d2ff-4f23-98e8-7aef2b13aeef-9&algo_pvid=067ab389-d2ff-4f23-98e8-7aef2b13aeef&transAbTest=ae803_4">AliExpress</a></td> | ||
| </tr> | ||
| </tbody> | ||
| </table> | ||
| </div> | ||
| </section> |
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