Corbin's Treehouse - Corbin Dunn, Santa Cruz, CA
Plug Bug

Archive for December, 2015

Tricks for fast Bluetooth LE data transfers

I’ve been using the Adafruit LE friend to do some data transfer tests. With the basic setup, I was sending 1 kB of data in about 9.5 to 10 seconds. That is horribly slow! About 100 bytes per second.  I did some research and found a couple of good links. This link about BLE discusses using the Nordic nRF chip and mbed to send data to a peripheral (i.e.: from the computer to the device). This link about sending data from the peripheral has some good tips when going in the other direction.   I gave up trying to get the Adafruit LE friend to be... [read more]

Adafruit Bluetooth LE SPI “Friend” with data loss and stalls (infinite loops)

I’m working on adding bluetooth support to my LED cyr wheel.  A long time ago I picked up an Adafruit nRF8001 breakout board — I was worried it was too big to fit in my wheel, and once I started working with it I realized it sucked. Specifically, the API was limiting; you couldn’t even set the peripheral’s name to something longer than 8 characters! Luckily they now have an “Bluefruit SPI Friend”, so I got one of those. Well, I ended up accidentally getting two. The first one I had sent via USPS, and it took 3 weeks to arrive!... [read more]

Utility sink counter top: The Sculpin IPA Counter

I wanted to touch up some of the areas next to my newly remodeled bathroom, and the laundry room needed a new utility sink. The plastic piece of crap I had was junk and I couldn’t find anything that would fit in the space I need. So, I made a custom cabinet, and planned on a nice concrete counter top similar to my last one.  This time I decided to do a more complex mold: I did a 3D design in Sketchup and made a template to go off of (based on my real top). The above shot is what... [read more]

The Electric Bug Chronicles: Yeah, those skid marks on Highway 85 are mine…

Oh boy… My bug needed new brake pads. I go through them crazy fast, as I drive down the famous “Highway 17” on a daily basis and my car doesn’t do any re-gen braking. This means I “ride the brakes” the whole way down. About a month ago the car started pulling hard to the left, so I popped the front tires off and the front right pad was way worn down. I ordered a new set from CIP1 (accidentally ordering the wrong ones first…) and put them on one evening 30 minutes or so before I had to go... [read more]

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