MSGEQ7, SFE, and LED Matrix Links

I have been wanting to play with the MSGEQ7 that Sparkfun sells. The MSGEQ7 is a graphic equalizer display filter that splits the audio into 7 bands and outputs via an analog signal. So in my last order, I decided to toss in the SFE shield with the MSGEQ7. This shield is all ready to go and it can analyze right and left audio channels. I am using it with a Arduino Leonardo.

Now I just need a way to display the output. What better way than using 2 LED Matrix Links?! You find them in our Tindie shop and they make it really easy to drive 8x8 LED Matrix displays. The kit comes with everything you need, just add your Arduino\Compatible micro and you are ready to go.

After an evening of coding I came up with a way to display the Left and Right channels, one per display. I started with the example from this site: http://tronixstuff.wordpress.com/2013/01/31/tutorial-arduino-and-the-msgeq7-spectrum-analyzer/ and I was then able to code the rest to take the analog data and display it.

Here is a quick video on how it turned out.

The only thing left is to have the option of transposing it so it displays horizontally. This still needs to be done using the setRow function. If you use the setColumn otherwise, it will update too slow.

Code is on Github: https://github.com/FriedCircuits/LED_Audio_Display

LED Matrix Display: Final Completed Pictures

Wow, I cannot believe that it's been over two months now since my wedding. It all happened so fast, as most people will say. We had a great time, and even though we had some mishaps (a vendor was a no-show), everything else came together for the most part. Remember the LED Matrix Display? Well I wanted to share some photos of how it turned out. My best friend and also best man, Warren, was able to help build an enclosure for the LED Matrix display before the wedding.

Sparkfun ISP Pogo Adapter

Each Friday, Sparkfun uploads a new video showcasing some of their recent products. One of June 28th's new products was an ISP adapter that uses Pogo pins. This is great for programming multiple boards or if you just want to load the boot loader without soldering headers.