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goodbyegti

HN member
Joined
Mon, Apr 14, 2014, 7:56 PM UTC
HN karma
40
Public activity
16 items

About goodbyegti

http://www.fluxoid.org/

https://github.com/dougszumski

https://uk.linkedin.com/in/dougszumski

Recent public activity

  1. comment
    Comment #23407605

    Sadly the article appears to overlook that Munich is switching back to Windows: https://www.theregister.com/2017/11/13/munich_committee_says...

  2. comment
    Comment #23156759

    Indeed, and when it kills someone, nothing to do with Google.

  3. comment
    Comment #21706999

    Absolutely. I will stick with my 80USD shutter precision hub dynamo. 5W of output is plenty for charging in the day and lights at night, and I don't even notice the drag.

  4. comment
    Comment #17120351

    https://github.com/dougszumski/KalmanFilter ^ A very simple Python implementation of a Kalman Filter with Matplotlib for visualisation.

  5. comment
    Comment #12651797

    Further to this, here's a very simple application of a Kalman filter which plots a graph (in Python): https://github.com/dougszumski/KalmanFilter

  6. comment
    Comment #11953258

    I had a similar problem with a DLP chipset controller (BGA) in an expensive home projector. Instead of attempting to reflow the solder joints, i made a clamp which held the chip in…

  7. comment
    Comment #11247157

    For C fans I ported the Python example from this excellent book here: https://github.com/dougszumski/NNet

  8. comment
    Comment #11154453

    A really nice intro is this classic paper on numerical integration of the equation for barotropic vorticity: http://mathsci.ucd.ie/~plynch/eniac/CFvN-1950.pdf It's something you ca…

  9. comment
    Comment #8875879

    I work in this sector, and what you say is correct, however it is important to note that in TMS the fields are pulsed over millisecond time intervals. In doing so they can induce a…

  10. comment
    Comment #8809346

    If you want to run the AVR examples and don't have a physical target checkout simavr: https://github.com/buserror/simavr

  11. comment
    Comment #8589654

    Another explanation which may be of interest: http://www.michaelnielsen.org/ddi/how-the-bitcoin-protocol-a...

  12. comment
    Comment #8165460

    If it's been done nicely 100% would seem fair to me for a low volume project like this. That's only my opinion however.

  13. comment
    Comment #8165404

    For an EE it's pretty easy to put these parts together and make them 'work', but it's fair to say that making the most out of a 24bit ADC is no easy task. That is unless you want 8…

  14. comment
    Comment #8164894

    It's mind blowingly expensive. A very quick breakdown of the main parts: ADS1299 ~38USD for 1k+ ATMEGA328P ~ 2USD for 2k+ RFDuino ~ 20USD for 10 + Accelerometer ~ 2USD for 1k+ Boar…

  15. comment
    Comment #7870521

    It's absurdly expensive, even more so the modules. Looking at the BT module, the BLE112 can be purchased for $15 in quantities of 1. So you pay $35 for a small PCB, some pin header…

  16. comment
    Comment #7720118

    The electric field for stimulation threshold is typically quoted as 100V/m. There's no chance of achieving that within the brain using the 9V battery and skin contact approach!