从数码管的底部（有小数点LED的一侧）开始，从左到右，引脚为1到5。 在顶部，从左到右为引脚10到6。 您可以将其视为从左下角开始为引脚1，然后沿逆时针绕数码管计数依次到引脚10。

将线圈两头的引线分别接到 Arduino 的引脚 8 和引脚 10。 在引脚 8 和 GND 之间接上一个 100 欧姆电阻。 在 GND 和引脚 12 之间串联一个无源蜂鸣器和 10 微法电容。 试试看！ 当把金属物件放到线圈附近时，Arduino 上内置的 LED 会开始闪烁，蜂鸣器也以相同的频率响起。

I have spent at least an hour almost every day since the 80’s advancing my knowledge in electronics. Recently I brushed up my knowledge on LED fading ...

The Arduino then controls the state of the LED using the active high enable line from the column multiplexer chip. [Alex] wanted more than just a static image to show off on his new display, so he ...

All the info you need right here ✦ In this occasion I'll make a lighting system to be controlled remotely from my rc using Arduino compatible boards, they will take the input from a receiver and ...

8×8 LED Matrix modules are now widely available, and fortunately they are easy to use with our favorite Arduino microcontroller. 8×8 LED Matrix module have many applications in real life, such as ...

If you’ve ever wanted to make your own VU meter but were scared off by the signal process you need to study this tutorial. Hackaday Alum [Phil Burgess] developed the device using an RGB LED m… ...