![]() The part is actually just a general purpose USB 3.0 device controller with built-in USB 3.0 PHY. For instance, one application may need a DMA controller while another needs multiple capture/compare timers, but both can be serviced by the same part simply by altering the firmware to change the disposition of the system's blocks. PSoC (for Programmable System on a Chip) are different to standard MCUs because they provide analog and digital blocks which can be reconfigured to suit the user's needs. If you've never looked into the PSoC parts before, I highly recommend doing so-they're pretty rad. The core functionality of the Leap Motion is provided by a Cypress PSoC part, the CYUSB3014, specifically. It is warm to the touch, but not unpleasantly so-definitely not warm enough to melt hot glue, so that's an option for securing it to the robot I know you're already thinking of building with it. Moving your hand towards it to cause it to dim the LEDs will reduce the current draw to about 200mA. I stuck a meter in line with the unit to measure the current once the Leap was in full swing, it was drawing about 320mA. ![]() It's visibly noticeable-the LEDs must be at a very near infrared wavelength (probably near or below 800nm), because they're visible, if barely, to the naked eye. A really cool feature that I noticed as I was playing around with the device is dynamic LED driving- as you move your hand closer to the sensor, the device will automatically dim the LEDs to prevent the imagers from becoming saturated and to keep the data quality high. We'll look at those more when we've gotten the cover off. You can see here that there are three infrared LEDs inside, and that they're positioned to provide a nice, wide coverage area.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |