SparkFun Electronics Commentsurn:uuid:214d0e4e-f1b1-d287-ce26-ac5b4c9f82492024-03-28T14:07:44-06:00SparkFun ElectronicsCustomer #640078 on SPX-18561 - Qwiic Blower FanCustomer #640078urn:uuid:3dbf3533-5f75-cf86-5db0-47c57830aa8d2021-12-24T18:48:16-07:00<p>I definitely would buy one of these which was qwiic to 3/4 pin fan header (I have already made one and sent off for a board spin, but you guys would do it better). It would have support for the majority of fans (~1a output), deterministic auto addressing, opto isolated fan interface, and external power input.</p>
yspacelabs on SPX-18561 - Qwiic Blower Fanyspacelabsurn:uuid:8d3289fe-d97a-2420-08e0-f53a3b0bdc652021-12-14T18:51:47-07:00<p>Connect a qwiic air quality sensor that monitors VOCs to the qwiic bus (along with a uC), and you would have a really nice automatic (although somewhat overcomplicated) solder fume extractor.</p>
bboyho on SPX-18561 - Qwiic Blower Fanbboyhourn:uuid:aa5b221b-1e76-1487-c92b-4f94846583a32021-12-14T14:51:32-07:00<p>Sweet! While not intended for it, this looks like it could make a "Qwiic," quality fume extractor when soldering. ;)</p>
yspacelabs on SPX-18561 - Qwiic Blower Fanyspacelabsurn:uuid:f4f092aa-1c2d-1595-0ebd-50675abb2c982021-12-13T20:44:32-07:00<p>This is very much a “sparkX” product. Something just seemed cool to the engineers, and might have a use somewhere.</p>
Customer #134773 on SPX-18561 - Qwiic Blower FanCustomer #134773urn:uuid:361051ba-2675-2d6f-94a7-81202bec04f12021-12-13T11:30:10-07:00<p>FWIW, about 8 years ago I did an "IoT"-type project where I needed to assure a small airflow over a temperature sensor to assure that I was getting ambient temperature unskewed by the heat from the other electronics in the box. I ended up using a small brushless fan, but it had quite a bit more airflow than I really needed. Some experimentation lead me to finding that adding a resistor in series with the fan would cut down on the speed -- at startup, the fan is drawing no current, so there's zero voltage drop across the resistor and the fan sees full voltage to start, but as soon as it starts to draw current, there's a voltage drop and that limits the speed of the fan.<p>I probably could have used this fan in that project, and wouldn't have had to worry about testing the little fan I actually used (which, at least in the prototype, has been running constantly for about 8 years, except when the power is out).</p></p>