Print in place tie wrap mount points for wiring guidesNote the parts at http://www.thingiverse.com/thing:169295 and http://www.thingiverse.com/thing:171912Are replacement parts for the size A model. They were designed after the main model...
If you are going to print the Size A, you need to understand which extended design parts are available to print...The size A evolved as I worked the design, there are additional parts available that are either exclusive to the size A or have otherwise...
Attached solar panels which will now charge the LiPo battery! Connected are two 0.5V cells feeding to an LTC3105 energy harvester. Demo and info to come!
A couple of new levels of abstraction have been added to my PK2 device file analysis suite. Now included in the build is an intentionally C-like output file that fashions each script as a void function.For the version of the device file I'm currently...
Sometimes it is good to take a few steps back in order to move forward !I started this project a long time ago (a few years) and at the time I had no real vision about how the project should be structured. I just started coding … and features stacked...
I know, I know, comparing ZeroMQ and DBus is like comparing apples and oranges… But, in my small tiny use case, it does make sense ! The use case is simple, I want to implement an Publish-Subscribe IPC architecture. And both ZeroMQ and DBus permit this...
HydraFW is a native C (and asm) open source firmware for HydraBus board with support of HydraNFC Shield.This version is basic and mainly for HydraNFC users waiting sniffer mode for NFC ISO/IEC 14443 Identification cards. The firmware can be installed...
I apologize that I haven't been updating the Open Source DSKY. School started back in August and I've been bombarded with classwork. As of now, the project is currently on hiatus. I've been working on and off on the project when I am on break, or when...
After 5 hours of torturing wolfram alpha with equations (that once I worked out, I could have just done myself), I managed to design a voltage divider for the feedback that will take the output signal to the same voltage range as the DAC outputs. this...
K.C. Lee's comments and some thoughts had me revisit the pwm genorator for two questions.a) Would a 555 make a better ramp generator?b) Can I get the whole ramp generation circuit to operate on 5V ( that previous design needed to be operated at 12V to...
In the last posts we saw how a fluxgate works in simulation. Simulations are all good when you can just add a pulsed voltage source - everything is perfect. In the real world, we have some challenges:1) We need very low DC offset to avoid...
In this entry we'll look at how to deploy MOSFETs in bridge circuits. (This is also applicable to IGBTs.)Switch mode electronics are great - they are usually smaller and more efficient than similar linear circuits. However, there are some limitations...
Wow, time flies when we have to worry about other things other than our hack projects!Stay tuned... I am in the design phase of the next two generations of the rover. Gen2 suffered from some chassis-based mechanical issues. The new chassis platform will...
One thing that's high on my wish list for the 6309sbc is high level language support. After writing the SD card stuff in 6309 assembly language, for example, it was clear to me that C support would make using the 6309sbc a lot more fun (and easy). I...
Since Java is unsuitable for reading quadrature I've chosen to write some C code to read the quadrature encoders, which I can poll from java at regular intervals. I found working C quadrature code here.I'm spawning a C process from java for each...