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Fading LEDs with PWM on all pins with Pi Zero & Node.js

I’ve been converting my ST4i workshop from Arduino to Node.js/Raspberry Pi and one of limitations is a lack of built-in PWM pins. PWM or Pulse Width Modulation can be used to fade LEDs up and down rather than just turn … There’s more

Posted in Node.js, Raspberry Pi, ST4I | 2 Comments

Controlling 7 segment LED displays on Raspberry Pi with Node.js

As part of the preparation for my upcoming workshops (last two tickets left!) , I’ve been working on writing Node.js code to drive various bits of hardware that are included in the free kit that comes with the course. So … There’s more

Posted in Node.js, Raspberry Pi, ST4I | Comments Off on Controlling 7 segment LED displays on Raspberry Pi with Node.js

Upgrading a node module that wraps C code

Today I wanted to get this ultra-thin LED matrix working with Raspberry Pi in NodeJS as part of my work on my new ST4i workshop. The SeeedStudio Ultrathin Red LED matrix. It’s such a nice bright matrix, I really love … There’s more

Posted in javascript, Node.js, Raspberry Pi, ST4I | Comments Off on Upgrading a node module that wraps C code