Box for the HomeBrew PCB WiFi/Bluetooth/GPS accessory for Celestron mounts

prusaprinters

<p>This is a revised version of the enclosure for the HomeBrew PCB WiFi/Bluetooth/GPS card for the Celestron telescopes. The <a href="https://www.prusaprinters.org/prints/83280-homebrew-wifibtgps-for-celestron-aux">initial version of the box is here</a>. You will find there all the credits and acknowledgments to the designers of the circuits (Mark Lord) and of the PCB (ni2o).</p><p>This is the final revision with the following improvements:</p><ol><li>The connectors are on the top side to allow a shorter cable (RJ12 - 6P6C as per Celestron AUX/HC port standard)</li><li>The GPS antenna is on the top side to increase satellite visibility</li><li>There are now several options to attach the box to the scope/mount: snap-on clamps for the tripod legs (if your mount panel doesn’t rotate), snap-on clamp for the counterweight shaft (1,25”) and velcro slot. All of them can be attached to the box with an M3 bolt.</li><li>The OLED screen frame is a separate print to allow adapting to the different OLED sizes</li></ol><p>As with the previous version there is a limitation on the type of RJ12 sockets soldered onto the PCB: due to the high variety of size/style we had to select one. It is a tab down RJ12 socket as this one.</p><p>At any rate I have put the Fusion3D .f3z project at your disposal for any modifications.</p><p>To build the box you will need:</p><ul><li>#4 printed parts: box, cover, OLED frame and an attachment solution at your choice</li><li>#4 M2x15 hex socket bolt/nut for the OLED screen</li><li>#1 M3x15 bolt/nut for the attachment solution</li><li>#4 3x15 self-tapping screws for the cover</li></ul><p>To realize the PCB you will need to follow the instructions linked in the first version of the <a href="https://www.prusaprinters.org/prints/83280-homebrew-wifibtgps-for-celestron-aux">box, here</a>.</p><p>The main electronic components apart from the PCB are as follows:</p><ol><li>GPS card (<a href="https://www.ebay.de/itm/283739851578">like this</a>)</li><li>OLED screen 0.96” (<a href="https://www.ebay.de/itm/283882571890">like this</a>)</li><li>RJ12 connectors (<a href="https://www.ebay.de/itm/151625305253">like these</a>)</li><li>The ESP32 Dev Kit C (<a href="https://www.ebay.de/itm/144215008485?var=443510516331">like this</a>)</li></ol><p>Any questions, ask here or in <a href="https://www.cloudynights.com/topic/743750-homebrew-wifibluetooth-accessory-for-aux-bus/page-36">the CloudyNights thread</a>.</p><p>Enjoy!</p><p>&nbsp;</p><p>PS: the HomeBrew works like a charm, without the quirks of the original Celestron WiFi dongle, and is recognized instantly by the Celestron Starsense or Nexstar hand controls. If you want to use it with CPWI or SkySafari I recommend to do it via the BlueTooth as explained by Mark Lord in the CN thread.</p>