Jean-Philippe_Rey

Most recent activity

• [SOLVED] 7 Segment driver MAX7219 : handling the dot on floating numbers

  in Interfacing • 3 days, 9 hours

  

  It's all updated now, so using disp.set without that extra bit of code I gave you should work fine :)

  Thank you very much, it works well!

• [SOLVED] 7 Segment driver MAX7219 : handling the dot on floating numbers

  @Jean-Philippe_Rey started

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  @Jean-Philippe_Rey replied
• [SOLVED] 7 Segment driver MAX7219 : handling the dot on floating numbers

  in Interfacing • 3 days, 14 hours

  

  I just tested that, and it's to be expected. Because of rounding, 99999999.1 ends up turning into 99999999.09999999403 when converted to a string with toString, and it's the last few digits that get shown.

  I didn't even thought this far. This seems to make sense. Thanks!

• [SOLVED] 7 Segment driver MAX7219 : handling the dot on floating numbers

  in Interfacing • 3 days, 16 hours

  

  Whoops, I spoke a little quickly. I did not test a specific case when there is not sufficient digits to print the value:
  disp.set(99999999.1)
  On the display, the value 99999403is displayed instead.

• [SOLVED] 7 Segment driver MAX7219 : handling the dot on floating numbers

  in Interfacing • 3 days, 17 hours

  

  it works like a charm! tested with

  disp.set("HH");
  disp.set("H------H");
  disp.set(3);
  disp.set(3.1);
  disp.set(3.14);
  disp.set(3.14159);
  disp.set(3.14159+"H");
  disp.set("3.14159H");
  

  Everything is working as expected. Thank you very much @Gordon !!

  Regarding the above testing, I think the module can be upgraded :)

• [SOLVED] 7 Segment driver MAX7219 : handling the dot on floating numbers

  in Interfacing • 4 days, 12 hours

  

  @Gordon, I had to wait less than 16 minutes to read the solution from you... You are by far the most brilliant support ever! :)

  I don't have the module on hand right now but I will try your code tomorrow morning.
  Again, thank you for the excellence of the support!

• [SOLVED] 7 Segment driver MAX7219 : handling the dot on floating numbers

  in Interfacing • 4 days, 13 hours

  

  Hi there,

  I wonder if anyone has tried to handle the dot (".") LED for displaying floating numbers, using this piece of HW? https://www.espruino.com/MAX7219

  In the MAX7219 datasheet, page 7 ( https://www.espruino.com/datasheets/MAX7­219.pdf ) , it says

  When the code B decode mode is used, the decoder
  looks only at the lower nibble of the data in the digit
  registers (D3–D0), disregarding bits D4–D6. D7, which
  sets the decimal point (SEG DP), is independent of the
  decoder and is positive logic (D7 = 1 turns the decimal
  point on)
  

  Which seems to allow handling the dot (DP).
  Do you guys think the MAX7219 module could be upgraded in order to support displaying floating numbers?

• Compiling for a wristband (ID115)

  @Jean-Philippe_Rey started

  • 10 comments
  • 193 views

  @Gordon replied
• Pixl.js cases

  in Puck.js, Pixl.js and MDBT42 • 6 days, 13 hours

  

  They are now on the GitHub folder:
  https://github.com/yerpj/PixLcase/blob/m­aster/1.jpg
  https://github.com/yerpj/PixLcase/blob/m­aster/2.jpg

• Pixl.js cases

  in Puck.js, Pixl.js and MDBT42 • 6 days, 15 hours

  

  I just uploaded the *STL files:

  https://github.com/yerpj/PixLcase

  I slightly adapted the 2-part housing in order to make it easier to assemble.