Using an H-Bridge to control an electromagnet #Arduino #Science @incanus77
Justin Miller writes on Mastodon about making an Arduino-based project to switch the polarity on an electromagnet for the Oregon Museum of Science and Industry. Switching inductive loads like this cannot be done by a microcontroller directly, so Justin is using a TI SN754410 quad half-H bridge chip to alternate the magnet’s polarity.
Oscillating the electromagnet back and forth with a piece of paper in contact produces a homemade speaker.
See the fun things being done in the Mastodon thread here.
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