Qualcomm Technologies announced its agreement to acquire Arduino, the famous Italian open-source hardware and software company. Qualcomm says this acquisition builds on the company's recent inves...

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Finally, an open hardware printer you can actually understand, repair, and upgrade

A better way to develop hardware. Latest release

Finally, an open hardware printer you can actually understand, repair, and upgrade

<p>I bought two of these to use for the large-format cell and stack. I'm in the process of setting them up to pump water in a loop, just to make sure they work, and to see if I can control their speed with an AC dimmer.</p> <p><img /></p> <p><img /></p> <p><img /></p> <p>I have two dimmers that are basically this:</p> <p><img /><br /> <a href="https://robotdyn.com/ac-light-dimmer-module-1-channel-3-3v-5v-logic-ac-50-60hz-220v-110v.html" rel="nofollow ugc">https://robotdyn.com/ac-light-dimmer-module-1-channel-3-3v-5v-logic-ac-50-60hz-220v-110v.html</a></p> <p>I have an Arduino UNO handy, from the development kit. Seems I could use this library or similar one (<a href="https://github.com/fabianoriccardi/dimmable-light/tree/main" rel="nofollow ugc">https://github.com/fabianoriccardi/dimmable-light/tree/main</a>) to control them. For example with this code:<a href="https://github.com/fabianoriccardi/dimmable-light/blob/main/examples/2_dimmable_lights/2_dimmable_lights.ino" rel="nofollow ugc">https://github.com/fabianoriccardi/dimmable-light/blob/main/examples/2_dimmable_lights/2_dimmable_lights.ino</a></p> <p>I would use one zero crossing detection on the UNO interrupt pin and then control the two dimmers/motors with two output pins going to the dimmer modules.</p> <p>Does this seem like a reasonable approach? This is not my field of expertise. Tagging <a href="https://fbrc.nodebb.com/user/h4k1">@H4K1</a></p>