Forum Rule: Always post complete source code & details to reproduce any issue!

Search:

Type: Posts; User: Vam

Search: Search took 0.00 seconds.

  1. So I have a few questions re. Teensy v1. I...

    So I have a few questions re. Teensy v1. I understand it isn't supported anymore (since the release of Teensyduino v1.19), and don't necessarily expect an answer, off course.

    Is the SD shield...
  2. Replies
    3
    Views
    96

    Alternatively, != 0 will also work for all these...

    Alternatively, != 0 will also work for all these scenarios (or relying on the truthiness of non-zero integers: if (mot4 & 0x04) will also work).
  3. So the GameBoy cam looks like a good candidate....

    So the GameBoy cam looks like a good candidate. The sensor is not that small, the max exposure time is one second, and the resolution is pretty low (128x123).

    It is well documented...
  4. Thanks for the info. I don't have any formal...

    Thanks for the info. I don't have any formal training as an engineer, nor do I have any in my social circles (I'm usually the most technical person in the room), and I'm not a native English speaker,...
  5. Another approach to measure wind speed would be...

    Another approach to measure wind speed would be to use strain gauges, but I haven't seen any implementation of the concept.

    The tricky part here is probably that both material stiffness and (IIUC)...
  6. Actually, rather than processing a video feed, it...

    Actually, rather than processing a video feed, it would make more sense to take long exposure shots and process still images once in a while.

    I looked a bit at using the Raspberry Pi camera...
  7. Thanks Paul :-). Good point, especially re. P...

    Thanks Paul :-). Good point, especially re. P frames...

    Assuming I can get a raw pixel stream through I2C, could I achieve the required bandwidth?

    I'm currently leaning towards the Raspberry pi...
  8. Teensy 3.6 as a USB webcam host (to detect alpha particles)

    Another stab in the dark for a project that is probably over my head...

    I'm thinking of building a radon detector with an old webcam (the older, the better, since a larger CMOS increases the...
  9. Making progress re. HC-SR04 proximity sensors. IT...

    Making progress re. HC-SR04 proximity sensors. IT turns out I'm of course not the first to think of modding them.

    There are several variants, the latest of which (the HC-SR04 P) can be driven by...
  10. Thanks @cartere, that's the kind of unknown...

    Thanks @cartere, that's the kind of unknown unknowns (to me) that I went fishing for here. I'm in northern France, and we get some days below 0C around here (usually less than ten per year, but I...
  11. Replies
    10
    Views
    1,188

    For loading lua scripts, you'll probably want to...

    For loading lua scripts, you'll probably want to use a bundler script like this one, then turn the result into a char array in a header file that you'll #include in your C source.

    That bundler is...
  12. Replies
    6
    Views
    204

    What was the shortest accurate interval on the...

    What was the shortest accurate interval on the 3.1?
  13. Thanks Micheal, the ADC lib will come in handy......

    Thanks Micheal, the ADC lib will come in handy...

    re. premature optimisation: that's a good point, but it is fun nevertheless ;-)
  14. So, I've been obsessing on the efficiency of the...

    So, I've been obsessing on the efficiency of the signal processing part (which is probably ridiculous since it will most likely be dwarfed by the power used to generate and record the pulses, but...
  15. After some more digging, I'll probably need a...

    After some more digging, I'll probably need a Teensy 3.2 at the very least (for the RTC) if not a 3.5/.6 for the builtin flash support and extra oomph.

    I've also dug further and refreshed my...
  16. Replies
    2
    Views
    111

    It would probably be better to start by defining...

    It would probably be better to start by defining an Instrument struct and and instrument array:



    struct Instrument {
    int pin;
    int note;
    int state;
    int peak;
    elapsedMillis msec;
  17. Replies
    2
    Views
    111

    Teensy n00b, but I know some programming :-)....

    Teensy n00b, but I know some programming :-). This may not solve the issue completely, but it should help:

    First, I'd use more descriptive names for your instrument-related variables:



    // at...
  18. Remote weather station, first hardware project

    Hi folks,

    I'd like to set up a solar/battery-powered weather station.

    The Teensy LC coupled with the air sensor and the 3.x/lc sd adaptor would AFAICT make a good starting point.

    I'm not...
Results 1 to 18 of 18