[LED 阵列(8x7)](https://www.sparkfun.com/products/13795) 是一组排列在一个漂亮的 8x7 网格中的 56 个 LED。它依靠 [Charlieplexing](https://en ...

In this code we'll cycle through 13 colors before turning off for a common cathode LED. This will work if you are using a common anode LED strip connected to a ...

Just in case you were wondering what that Sparkfun LED Tetris game really looks like, we caught a whiff of it today at Maker Faire. Press the buttons on the right to rotate clockwise, and left to ...