Bed leg load sensor

prusaprinters

<p>I wanted a sensor that could tell which half of my bed was occupied, so of course I built a double wifi scale that sits under my bed....?</p> <p>Parts list:</p> <p>2x [https://www.amazon.com/gp/product/B086ZHXNJH] HX711 Amplifier and strain gauges. I use one set for each half of the bed.</p> <p>1x [https://www.amazon.com/gp/product/B081PX9YFV] ESP8266 wifi chip.</p> <p>1x [https://www.amazon.com/gp/product/B08HGS5G8N] RJ45 connectors for the bed legs.</p> <p>I had plenty of Cat5 cable and a crimper to make custom cables for this project.</p> <p>What to print:</p> <p>4x Bed leg load sensor - This is the base unit that holds 2 load cells.</p> <p>4x Bed leg load sensor cap - This is custom shaped to my bed frame wheels, your mileage may vary.</p> <p>2x Dummy leg - my California King bed frame has 2 middle legs. These are wide for stability.</p> <p>1x Bed sensor case - Holds 1 wemos d1 mini (or clone) and 2 HX711 load cell amplifiers. This case design should probably be redone to include proper RJ45 sockets but I haven't gotten that far yet. Mine contains a liberal amount of hot glue.</p> <p>Supplied an example YAML for this project for use with [<a href="https://esphome.io">https://esphome.io</a>] firmware.</p> <h3>Print Settings</h3> <p><strong>Printer Brand:</strong></p> <p>Creality</p> <p class="detail-setting printer"><strong>Printer: </strong> <div><p>Ender 3</p></div> <p><strong>Rafts:</strong></p> <p>No</p> <p class="detail-setting supports"><strong>Supports: </strong> <div><p>No</p></div> <p><strong>Resolution:</strong></p> <p>200</p> <p class="detail-setting infill"><strong>Infill: </strong> <div><p>20</p></div> <p><strong>Filament:</strong> Sunlu PETG</p> </p></p></p> Category: Electronics