Last month we featured a project that aimed to recreate the iconic mechanical VU meter with an Arduino and a common OLED display. It was cheap and easy to implement, and promised to bring a little ...

VFD displays are beloved for their eerie glow that sits somewhere just off what you’d call blue. [mircemk] used one of these displays to create an old-school VU meter that looks straight out of a ...

这款基于 Arduino 的双模式科学计算器是一种多功能且高效的工具，可用于基本和高级计算。在普通模式下，它用作标准计算器，通过 4×4 键盘执行加、减、乘、除。结果清晰地显示在 OLED 屏幕上。按钮开关可在模式之间无缝切换，以增加灵活性。 本文引用地址 ...