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( ...

I recently won an Amazon Echo in a BBQ cooking competition and I was eager to get it set up in my house. As you may know, the Echo allows you to use voice commands to do things like order from Amazon, ...

Insight into Arduino IoT shields. Their feature sets and applications. In the ever-expanding world of the Internet of Things (IoT), where connectivity is the name of the game, Arduino takes the top ...

The official Arduino developing team has this week announced new additions to its excellent Arduino IoT Cloud with the addition of new Value Selector and Value Dropdown Widgets. The Arduino Cloud has ...

Arduino has announced the launch of its Oplà IoT Kit, described as an open programmable IoT platform. It aims to simplify the building of custom IoT devices, with support for cryptographic control ...

Arduino has introduced a new feature to its Arduino Cloud platform: the Image widget. This addition aims to improve the user experience by allowing for greater customization and visual appeal in IoT ...

In this video, I’m building a LoRaWAN Class A sensor node using an ESP8266, BME680 environmental sensor, and REYAX RYLR993 ...

As IoT devices become more prevalent in the consumer world, how long will it be before it’s cheaper to buy one, than to make one? Definitely not yet, which means if you want your very own IoT power ...

The Arduino Plug and Make Kit provides a 10-minute, cloud-based IoT solution that includes QWIIC and smartphone-based sensors, transducers, and actuators. Arduino’s new QWIIC-based UNO Plug and Make ...