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( ...

Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I ...

Hong Kong swimmer Stephanie Au Hoi-shun said the feeling she had taking part in the city’s National Games torch relay on Sunday was “completely different” than being a flag bearer at the Olympics. The ...

At the Hong Kong torch relay ceremony, Feng Xingya, Chairman and President of GAC Group, successfully completed the torch relay as the 8th torchbearer. This marks Feng's return as a torchbearer for a ...

Hong Kong joined Macau and two Guangdong cities on Sunday in marking the run-up to the National Games with torch relays featuring top athletes, business leaders and community members, as a minister ...

Executive Director of the Organising Committee of the 15th National Games, the National Games for the Disabled, and the National Special Olympics, and the Chief Executive of the MSAR, Mr Sam Hou Fai, ...

HONG KONG, Nov. 2, 2025 /PRNewswire/ -- On November 2, the torch relay for the 15th National Games, of the People's Republic of China was launched simultaneously in four cities: Hong Kong, Macao, ...

Torch bearer humanoid robot "Kuavo" runs during the torch relay for China's 15th National Games in Shenzhen, South China's Guangdong province, Nov 2, 2025. [Photo/Xinhua] ...

HONG KONG, Nov. 2, 2025 /PRNewswire/ -- On November 2, the torch relay for the 15th National Games, of the People's Republic of China was launched simultaneously in four cities: Hong Kong, Macao, ...

MACAO, Nov. 2 (Xinhua) -- The torch relay for the Macao session of China's 15th National Games was held on Sunday morning, filling the city with festive energy and pride as the flame made its way ...

A pro-life relay with more than 10,000 participants came to a joyful conclusion in Kansas last Saturday after runners made the shape of a cross as they ran across the U.S. The 5,124 mile “A-Cross ...