当环境光线变亮时，又自动关闭灯带。 连接 Arduino ↔ LDR 分压 ↔ 继电器模块 ↔ 12V 灯带。 热熔胶枪（可选） 用于固定 LDR 位置或整理线材，提升结构可靠性。 A0 点的电压随光照变化而变化，Arduino 通过 analogRead(A0) 读到 0–1023 之间的数值，即可反映当前亮度。 为了安全与隔离，LED 灯带不直接由 Arduino 供电，而是： 灯带的 正极( ...

Arduino WS2812B LED灯带可单独控制每个LED的亮度和颜色，提供了一种简单而酷炫的LED效果体验。 WS2812B LED灯带以串联方式组合LED灯，内嵌有放大驱动电路、振荡器和电压可编程控制芯片，可寻址，可通过一个单线接口通讯。这意味着，用户可通过Arduino板子上的一个 ...

导语：昨天介绍了如何用柠檬做个LED灯，如果你觉得那个too simple，不防尝试用Arduino来控制RGB LED灯吧。 昨天介绍了如何用柠檬做个LED灯，如果你觉得那个too simple，不防尝试用Arduino来控制RGB LED灯吧。 这一步比较随意，将LED灯接到面包板任何地方都行，不过灯的 ...

Sure, the physical build itself looks great, but it’s what [Michael] did with the firmware that impresses us the most. He’s using an Arduino Mega to drive the 7x7x7 cube and manages to squeeze out ...

This is just a fun Arduino project that uses leds connected in circle as a ring to produce a rotation effect. You can adjust the spinning speed with a potentiometer and you can also set a minimum and ...

Regular candles can be awfully boring at times. They can only produce one color and the flicker is so… predictable. They can’t even be controlled by an infrared remote control, not to mention the ...

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 secrets and attained something pleasant. Now, I’d ...

If you searching for an LED matrix for your next project or to add to an existing application you may be interested to know that the Maker LED Display is now available to purchase from the Crowd ...

In the last installment of The GeekDad Arduino Guide, I introduced you to the Arduino hardware and why it is so cool. Now, let’s start actually using an Arduino. How do you get started? Well, first ...

[Credit: Djandco on Instructables] The Look of Disapproval (made using the unicode character for the letter “tha” in the Indian language of Kannada and an underscore) is possibly my favorite ...