Member #757777

Member Since: January 2, 2016

Country: United States

  • and work with this: https://www.sparkfun.com/products/9434

  • some like this: https://www.ebay.com/itm/Mini-USB2-0-EDR-Wireless-Bluetooth-Dongle-Adapter-for-Laptop-PC-Win-Xp-Win7-8/152627190302?epid=8025390228&hash=item23894a1a1e:g:VmoAAOSwDtpZbFE3:rk:2:pf:0

  • Hi everybody,

    it is possible connect and use USB bluetooth dongle with this SAMD21 microcontroller directly to USB Host? Have a anybody any experience with this ? because in this case, it is not necessary using a USB host shield, it is great added value.

  • Hi,

    nice tutorial. I was code function for variable dimming, where you set the minimum and maximum value for LED. For example min. level is 20 and max level is 200. The LED pulse in this interval. Max value in this tutorial for LED is 255. For example, max value will 180 and min value 20. Now i have this function: out = sin(in) * arg1 + arg2; instead out = sin(in) * 127.5 + 127.5;

    max = 180; min = 20;

    arg1 = max/2 - min/2; arg2 = max/2 + min/2;

    Now the LED will pulse in interval 20 to 180. I do belive that help someone ;)

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