6 篇文章
Two sensor projects combined: BH1750 digital light sensor for an intelligent auto-dimming system, and HX711 24-bit ADC paired with a load cell to build a 0.1g-precision scale. Includes complete wiring diagrams, Arduino code, calibration procedures, and troubleshooting tips — total cost under ¥100.
两篇传感器实战合二为一：BH1750 数字光照传感器实现智能自动调光系统，HX711 24 位 ADC 搭配称重传感器制作 0.1g 精度电子秤。含完整接线图、Arduino 代码、校准流程与常见问题排查，总成本不到 100 元。
DIY portable oscilloscope with STM32F407 and 3.5-inch TFT screen, cost under 200 yuan, supports 1MSa/s sampling rate, trigger function, waveform display.
用 STM32F407 和 3.5 寸 TFT 屏 DIY 便携式示波器，成本不到 200 元，支持 1MSa/s 采样率、触发功能、波形显示。
Why upgrade your 3D printer to Klipper? If you're still running your 3D printer with Marlin firmware, you might be missing an opportunity to improve print quality. Klipper is the hottest 3D printer firmware in recent years, with a clever core idea: moving heavy computational tasks from the printer's mainboard to a more powerful host computer (like a Raspberry Pi). What are the benefits? - Higher step frequency: Marlin on 8-bit boards can only reach 50kHz at most, Klipper easily exceeds...
为什么要把 3D 打印机升级到 Klipper？ 如果你还在用 Marlin 固件跑 3D 打印机，那你可能错过了一个提升打印质量的机会。Klipper 是近年来最火的 3D 打印机固件，它的核心思路很聪明：把繁重的计算任务从打印机主板移到性能更强的上位机（比如树莓派）上。 这样做有什么好处？ - 更高的步进频率：Marlin 在 8 位主板上最高只能跑到 50kHz，Klipper 轻松突破...