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。

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 ...

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 ...

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 ...

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 ...

[Rob] created these amazing Bluetooth controlled LED lights for his daughter’s wedding adding a colorful ambient glow to the ceremony. Each item held a Neopixel ring and an Arduino microproce… ...

Arduino has launched its next generation of UNO boards, introducing a 32-bit Renesas microcontroller and Espressif ESP32-S3 module, one-click cloud connectivity and plenty of I/O plus a 12×8 red LED ...