-
Recent Posts
Projects
- Artist / hacker synergy
- ATtiny4313
- Baling wire
- Battery Charging
- Battery Rebuilding
- Battery Tab Welder
- Child proof caps
- Cupcake 3D printer
- Cupric Chloride Etchant
- Dance shoes
- Discharge tester – Arduino and perl code
- Discharge tester – PCB build
- Dollhouse
- Drawbot
- Electronics workbench revamp
- Embroidery
- First project – towels
- HDPE
- HDR
- Hilton repair
- Holiday Lights
- Home Automation
- Home Repair
- House and garden/snow
- I2C bus
- Invisible clips
- Laser Cutter
- LED emergency lights
- LED window heart
- Li-ion camera battery
- Life hacking
- LiPo Conversions
- LiPo stuff
- Little Discharger
- Luxeon 3W LED
- Miscellaneous
- Palm Serial Terminal
- PCB Etching
- Phone backup
- Photography/Camera stuff
- Pink LED hack
- polywogs
- Recording preamp/limiter
- Reflow soldering
- Rf starter's gun
- RGB LED stuff
- Robotics
- Salt spreader
- Scrolling LED
- Shapelock stuff
- Shapeoko
- Snow shovel handle
- Solar Panel Installation Notes
- Speaker Repair
- Square dance
- Time-lapse photography
- Tiny 85 stuff
- toroid winding
- Uncategorized
- USB_TTL Adapters
- Vision stuff
- W88 Educubes
- Water meter reader
- WordPress
- Workshop 88 sign
- Workshop 88 Stuff
Meta
Blogroll
Links
Category Archives: W88 Educubes
Design notes on Educube
The inner workings and state changes in the Educubes are (duh!) getting more complex. I can barely keep them straight during one coding session, and by the next day I have only a clue about how they work. This post … Continue reading
Posted in W88 Educubes
1 Comment
Educube Performance Update
After digging into I²C protocol some more I felt armed to hack the MultiSerial library to do multi-byte reads and writes. I added 2 user level functions – writeMulti() and readBuf(). I had to add 2 more internal functions – … Continue reading
Posted in W88 Educubes
4 Comments
A Rude Awakening on Educube Comms Performance
I was frustrated because message transport between cube bases was slow/erratic. At 115200 b/sec, the best case is ~11KB/sec. For a 22 byte message, that’s 2 ms best case. That’s a pretty short in timelines measured in 10s of ms. … Continue reading
Posted in W88 Educubes
2 Comments
Educube IR Board update
I’m almost done with what I’d hoped to do! I just finished soldering up the last of the five boards. I only have four Diavolinos, so I tested the last one by hooking it up to a regular Arduino. All … Continue reading
Posted in W88 Educubes
Leave a comment
W88 Educube IR board
I’m well into the prototype stage of 2-channel IrDA IR comms Arduino shield for the Workshop 88 Educubes GGHC project. Very efficiently, IrDA uses very short (~10μs) IR pulses, which must be delivered by the UART driving the IR transmitter. … Continue reading
Posted in W88 Educubes
Leave a comment