基于 Arduino 的自动昼夜 LED 灯带控制器设计

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( ...
TechWalls

ELECFREAKS micro:bit XGO Rider Kit Review – Introduce Robotics to Kids

Unlike many STEM toys that rely heavily on building-block pieces, the Rider kit is ready to use out of the box and you don’t ...
Electropages

CAT M1 and NB-IoT modules for smart wearables and healthcare applications

Mouser Electronics, Inc. now supplies the new LBAD0XX1SC Type 1SC CAT M1 and NB-IoT module from Murata. The device is the world's smallest, global certified, ultra-low-power Cat M1/NB-IoT module for ...