
Air Monitoring Droid with Display
prusaprinters
<p>This is a remix of the Air Monitoring Droid (Alien Edition) that incorporates an EDD1306 OLED display. If you have the Alien3d Box from July 2021, then that's the component used in this remix.</p><p>The display shows the PPM and r0 values from the sensor, so not only does it move and make sounds, but now you can see the values fluctuate as well.</p><h4>Printing</h4><p>Only the chassis is different from the original. The decorative inserts haven't been altered, so print the ones from the original model, too. No supports needed.</p><h4>Components</h4><ul><li>1x SD1306 OLED display</li></ul><h4>Wiring diagram</h4><figure class="image"><img src="https://media.printables.com/media/prints/303566/rich_content/8a136d74-e2ba-4a2b-a1bb-39942726d900/airdroid-remix_bb.png#%7B%22uuid%22%3A%22f81ee951-2e83-4966-ab8f-fd8c4434dc53%22%2C%22w%22%3A1292%2C%22h%22%3A1416%7D"></figure><p>The display uses the 3v power instead of the 5v, but does use the common ground. The I2C connections from the display to the D1mini use D1 and D2, which means that you'll move the servo connection to D3. This is non-optional, as the SDA/SDL lines are fixed on WeMos.</p><h4>Assembly</h4><p>Assembly is the same as the original model, adding in the display into the slot, with the pins facing up.</p><h4>Programming</h4><p>The ssd1306 library from lexus2k (https://github.com/lexus2k/ssd1306) is used to drive the display.</p><p>Add this library to the Arduino IDE; search for “ssd1306” and choose the one by <strong>Alexey Dynda</strong>.</p><p>Then, load up and flash the *.ino file included in this project, as per the original model instructions.</p>
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