Blog post with video: http://marc.merlins.org/perso/arduino/post_2015-01-06_Driver-for-direct-driving-single-to-3-color-LED-Matrices-with-software-PWM.html This code ...

Arduino boards power everything from robots to RGB lights, but they're a little on the small side. YouTuber UncleStem has his own solution: build a gigantic, yet fully functional one. In a video ...

Arduino has created a Renesas RA4M1 microcontroller board in its Nano form-factor. Called Nano R4, it follows the Uno R4, the first Arduino to use the RA4M1. “Whether you’re working on a connected ...

[导读]控制LED亮度是电子和嵌入式系统中的一个基本概念，在可调光照明，显示背光，甚至电机速度控制中起着关键作用。我们使用脉宽调制(PWM)来实现平滑和精确的亮度调节，而不仅仅是开关LED。 控制LED亮度是电子和嵌入式系统中的一个基本概念，在可调光 ...

Walking safely and confidently can be a challenging task for visually impaired individuals, but with the help of technology, we can make it easier for them. This DIY Blind Stick is an innovative yet ...

A Tech Enthusiast has shared his new open-source project, the 9x9x9 LED Cube, which takes 3D visualization to the next level with its modular design and interactive features. This cube consists of 729 ...

本文讲述了使用Arduino IDE对RP2040进行编程时，GPIO与pinMode的对应关系，和使用PWM功能时的注意点。 需注意函数pinMode的入参序号与实际GPIO不对应；需注意通过函数analogWrite最多输出16种PWM占空比，且周期均为2ms。 上一贴说到RP2040在Arduino Nano上的GPIO分布： 【Follow me ...

本期活动发放的开发板是Arduino Nano RP2040 Connect，这块主板上的主芯片是树莓派的RP2040。 在尝试使用nano控制外部继电器时发现实际硬件并不是任意一个IO都适合，就整理资料如下。 先说结论：在nano板上，适合控制外部的RP2040的IO有9个。 剩下的是可以在主板排插引 ...

Fire safety alarms are crucial in both residential and industrial environments. Early fire detection can prevent significant damage and save lives. Flame sensors offer one of the most efficient ...