I have lost my way in the world of software and its now time to brush the dust off my interest in building hardware
I wanted to learn how to use a 128x64 pixel display, i.e. the DOGM-128-6 from Display Visions. I then got distracted by the requirements of the LED backlight. For several of the backlight options they suggest some series current limiting resistors for 3.3V and 5V. For the White, Blue and Full Colour backlights, they suggest … Continue reading Testing Constant Current Device BCR421UW6
The local open lab sent out a call for ideas to run workshops over the lead up to Christmas. I thought of a Christmas tree with candlelight LEDs. I needed to know what was involved in making such a model before I could conduct a workshop. In this post I describe the that approach that … Continue reading Getting Started on Christmas Workshop Idea
In a previous post I explored a technique to connect a chain of LEDs in parallel and enable the LEDs to blink alternatively in a series of animations using an H-Bridge. Since the H-Bridge is used extensively in motor controllers, in this post I take the experiment one level further and use an integrated motor … Continue reading Using a Motor Controller to Drive a LED Chain
I became interested in a LED display I saw in a beer garden over Summer. The remarkable thing was that it was clearly LEDs on a bus of only two wires. Even so the LEDs were able to be animated such that they could blink in unison or every other alternatively. I was intrigued as … Continue reading Bidirectional LED Driver
Playing with some animations of the single LEDs strip of my NeoPixel board was nice but the thoughts soon come to mind: “It would look better if there were more strips”, “…if there were more strips, how could they be coordinated”, to “Could I still use the ATiny1614?”. To take this project further, I considered … Continue reading Expanding the NeoPixel Project
Rebooting Electronics 