I visited a yard sale this weekend and ended up pleasantly surprised right away. I’ve been hammered by shipping charges on orders lately, so I’ve been trying to get more parts locally. This applies especially so for purchases destined for destruction. Two of the items I picked up are for just that: a broken HP [...]
It’s been a while since my last update. I’ve been bouncing around between projects. The LED Shifter board, the subject of my most previous posts, works well and is acceptably bright. A couple of the channels still trigger together, which needs to be investigated. While I’m troubleshooting that project, I’ll be posting a little about [...]
Continuing from this post, I’ve been working on a driver and control system for a couple of common-cathode LED bars. The driver circuitry (NPN transistors) was completed and detailed in the previous post. This post will take a closer look at the control board/layer that I had only started last time. Here’s what I had [...]
I’ve been sitting on a couple of LED arrays/panels/boards for a few months, wondering what to hook up to them. I built them to test a shipment of LED’s, but I’d love to give them a more creative and pleasant duty. They’re each made up of 40 ultra-bright white LEDs arranged in eight groups of [...]
So I’ve opened up and checked out the power bar I mentioned over the weekend (officially a PowerAuthority Model F5C120 from Belkin). It works fine, and everything on the inside is in top shape. (Score!) For a little background, I’ve been switching my overhead lights with an outlet strip, with another strip nearby for “the [...]
I recently saw a a couple of choice electronic items and a stack of unopened Radio Shack products near the trash area of my apartment complex. Being the discerning consumer and dumpster-diver that I am, I rounded up the Shack boxes and took the best couple large items for further investigation. The unopened merchandise was [...]
YouTube Videos
- MSGEQ7 Graphic Equalizer chip with Arduino
The MSGEQ7 chip outputs in 7 EQ bands, and I currently map 6 of those to two RGB LEDs. (Channels 1,2,3 to red, green, and blue of one LED, etc.) I plan on using a an extra set of white LEDs to show the last channel.
YouTube Plugin made by Web Hosting.
- MSGEQ7 Graphic Equalizer chip with Arduino
