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。

20 warm white LED lights Requires 2 x AA batteries (not included) Spiderman head design Coordinating accessories available Perfect for your little one's bedroom, these Spiderman string lights have ...

Our expert, award-winning staff selects the products we cover and rigorously researches and tests our top picks. If you buy through our links, we may get a commission. John Carlsen has more than a ...

Football print and shaped clip string lights 10 warm white LED's 1.6 meter Indoor use only Battery operated 2 x AA batteries required (not included) For the crazy ...

In need of a simple microcontroller board for your project? Then, an Arduino board might be exactly what you're looking for. This open-source hardware platform comes in a multitude of versions, from ...

Maybe it’s just us, but isn’t it kind of amazing that in a world of pretty darn realistic games, PONG is still thrilling to play? This 1D implementation by [newsonator] is about as exciting as it gets ...

Arduino is a well-known open-source electronics platform that provides users with the ability to create interactive and easy-to-control systems in a reliable manner. A popular use for Arduino boards ...

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 ...

One area where the Arduino really shines is in LED projects. Here are some of the best Arduino LED projects you can try. 1. Knight Rider LED Scanner If you’re a fan of the classic TV show Knight Rider ...