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New P2 Goertzel board in the store! — Parallax Forums

New P2 Goertzel board in the store!

VonSzarvasVonSzarvas Posts: 3,450
edited 2020-09-05 18:58 in Propeller 2
Wow-- just got a very nice surprise in the post (see attached!)

Anyone that orders the P2 Accessory Set this weekend will get the latest Goertzel version that Chip has been showing, and 10% off with free domestic shipping!!

https://www.parallax.com/product/64006-es

And as a bonus, the P2-Digital Video (HDMI-style) breakout accessory included with that kit has an extra 5V header pad too, for hooking 5V to those external monitors that need it!


Grab an accessory kit with your labor day mystery box whilst stocks last :)
https://www.parallax.com/product/910-10001

2020-09-05 20_51_15-Photos (Medium).png
1366 x 583 - 1M

Comments

  • RaymanRayman Posts: 14,646
    Is there info on what's new on this somewhere?
    In a video or something?
  • Duane DegnDuane Degn Posts: 10,588
    Any chance of getting the new Goertzel board by itself?

    If not, how about the Diptrace schematic and layout files? Am I correct in assuming Parallax wouldn't mind if we have a similar board made at OSH Park or elsewhere using the layout?
    Rayman wrote: »
    Is there info on what's new on this somewhere?
    In a video or something?

    In one of the webcasts, Chip mentioned a new Goertzel board which had much better resolution than the original board. Something to do with the copper geometry.
  • Duane DegnDuane Degn Posts: 10,588
    I assume the new boards are similar to the ones Chip uses at 19:19 in this video.

  • VonSzarvasVonSzarvas Posts: 3,450
    Similar yes. Those were the prototypes.
  • cgraceycgracey Posts: 14,155
    I have the new Goertzel board on my P2 Eval and it works great. It's working exactly as hoped for. It took an iteration to get it right. The new board has very linear response and no bias problem, as before.
  • Duane DegnDuane Degn Posts: 10,588
    cgracey wrote: »
    The new board has very linear response and no bias problem, as before.

    It sounds really cool.

    Is there are way for us to purchase the new Goertzel board without purchasing the other accessories?

    If selling the individual boards is a problem, then how about letting us roll our own by sharing the PCB layout?

  • cgraceycgracey Posts: 14,155
    Duane Degn wrote: »
    cgracey wrote: »
    The new board has very linear response and no bias problem, as before.

    It sounds really cool.

    Is there are way for us to purchase the new Goertzel board without purchasing the other accessories?

    If selling the individual boards is a problem, then how about letting us roll our own by sharing the PCB layout?

    That's fine with me.

    Von Szarvas, can you put something up?
  • RaymanRayman Posts: 14,646
    I'd also be interested in just the board somehow...
  • Duane DegnDuane Degn Posts: 10,588
    cgracey wrote: »
    That's fine with me.

    Fantastic!

    Thank you.

  • VonSzarvasVonSzarvas Posts: 3,450
    cgracey wrote: »
    Duane Degn wrote: »
    cgracey wrote: »
    The new board has very linear response and no bias problem, as before.

    It sounds really cool.

    Is there are way for us to purchase the new Goertzel board without purchasing the other accessories?

    If selling the individual boards is a problem, then how about letting us roll our own by sharing the PCB layout?

    That's fine with me.

    Von Szarvas, can you put something up?


    Sure thing- we can make an individual Goertzel board soon. (Right after the new P2 module is released).


  • PropGuy2PropGuy2 Posts: 360
    Here is a 4x4 Touch Keypad for the P2 EVAL board. Each key goes to an individual pin on the P2 EVAL board - see attached pictures. The Keypad is made with a single sided PCB, using stylus milled isolation pads & traces. Something I can to fairly easily in my home shop - software: Sprint Layout, FlatCAM & Universal G-Code Sender. The table top CNC milling machine is a ShapeOKO

    Does anyone have any Goertzel software functions for a 4x4, 16 pin Keypad? Second, this PCB uses square touch pads, would it work better with round keypads? The PCB is painted Green to prevent the copper PCB Keypad from corroding and for electrical insulation & isolation. The keypad is a single-sided PCB, There is no backplane.

    Any suggestions are welcome. The isolation milled keypad is available FREE to forum members (PM me with your mailing address)
    Touch_Keypad 4x4_P2_EVAL_9-06-2020A.jpg
    768 x 816 - 449K
    Touch_Keypad_P2_EVAL_9-06-2020A.jpg
    689 x 1024 - 517K
  • RaymanRayman Posts: 14,646
    @PropGuy2 I'm very interested to see how this kind of input works!
  • cgraceycgracey Posts: 14,155
    PropGuy2, to measure activity on that pad array, the Goertzel circuit won't help, but I think you could just measure discharge time using a smart pin mode and 10uA low-drive with Schmitt-trigger input.
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