Actual flowers do it, and even the Beatles did it. [Robo Hub] now has a plastic sunflower that tracks the solar utilizing, after all, an Arduino. It could not qualify as an actual robotic, nevertheless it does mimic an actual sunflower. The electronics aren’t earth-shattering, after all. An Arduino, a lightweight sensor, and a servo motor are all you really want. However we loved the whimsy and the creative sensibility. This could be a terrific faculty challenge, for instance. Attention-grabbing sufficient to get youngsters however not so exhausting as to be undoable. You may see a video of the ersatz flower under.
There are literally a pair of sunshine sensors, as you may count on. That means you’ll be able to decide which sensor is getting essentially the most gentle. Clearly, these can’t be on-off sensors. They’re, in truth, light-dependent resistors, so that you get a pleasant analog studying.
After all, you may not want an Arduino for this. A 555 driving a servo and a handful of discrete parts might measure a bridge with the photoresistors and get the identical impact. However, a microcontroller nowadays is cheap and versatile, so why not?