Hi. We crossed each other. I send this to Rob J. procedure seven_segment_multiplexer_one_digit(byte in display,byte in character) is _seven_segment_multiplexer_digit[display] = character end procedure
seven_segment_multiplexer_one_digit(2,3) This is also possible. seven_segment_multiplexer_one_digit(0,10) seven_segment_multiplexer_one_digit(1,11) seven_segment_multiplexer_one_digit(2,11) seven_segment_multiplexer_one_digit(3,10) I think you will immidiatly see what's comming on the displays :). Regards Peter Op donderdag 5 februari 2026 om 04:44:01 UTC+1 schreef Matthew Schinkel: > Hi, I updated the library > https://github.com/jallib/jallib/blob/master/include/external/seven_segment/seven_segment_multiplexer.jal > > On Tuesday, February 3, 2026 at 7:57:35 PM UTC-5 Matthew Schinkel wrote: > >> Hi yes, that would be fine. >> >> When writing the library _seven_segment_multiplexer_digit wasn't meant >> to be used in samples, but you found a good use for it. >> >> >> On Monday, February 2, 2026 at 5:08:48 PM UTC-5 [email protected] wrote: >> >>> Hi Matt >>> I tried to send you personel a question and maybe it was not succesfull. >>> So one another try. I spoke Rob J and he said it was not common on the >>> user side to start an assignment with an underscore. >>> Is it possible to convert the assignment into a standard assignment >>> with, for example, a procedure? So change >>> _seven_segment_multiplexer_digit[] to seven_segment_multiplexer_one_digit[]. >>> Rob J can then update the library so that everyone can use the command. >>> I'm curious. >>> Greetings Peter >>> Op donderdag 22 januari 2026 om 23:33:18 UTC+1 schreef Zet Weeh: >>> >>>> Hi Matt >>>> >>>> Thanks for your clear answer. >>>> I'll get started on it this week. >>>> >>>> Regards, Peet >>>> >>>> Op donderdag 22 januari 2026 om 01:13:21 UTC+1 schreef Matthew Schinkel: >>>> >>>>> >>>>> 1) 4 digits, but “2+2 independent”? >>>>> Yes, but not with seven_segment_multiplexer = value / put(word), >>>>> because that only formats one number across all digits. To do 2+2, you >>>>> must >>>>> set the digit buffer per position (each digit is updated independently by >>>>> the ISR). >>>>> >>>>> -- up: 0..99 (displayed on digits 1..0) >>>>> -- down: 0..99 (displayed on digits 3..2) >>>>> var byte up = 23 >>>>> var byte down = 99 >>>>> >>>>> procedure display_update_2plus2() is >>>>> var byte tens >>>>> var byte ones >>>>> >>>>> tens = up / 10 >>>>> ones = up - (tens * 10) >>>>> _seven_segment_multiplexer_digit[0] = ones >>>>> _seven_segment_multiplexer_digit[1] = tens >>>>> >>>>> tens = down / 10 >>>>> ones = down - (tens * 10) >>>>> _seven_segment_multiplexer_digit[2] = ones >>>>> _seven_segment_multiplexer_digit[3] = tens >>>>> >>>>> if up < 10 then >>>>> _seven_segment_multiplexer_digit[1] = 27 -- space >>>>> end if >>>>> end procedure >>>>> >>>>> 2) Using seven_segment characters in the multiplexer >>>>> The multiplexer already uses seven_from_digit(...). So you can show >>>>> any seven_segment “character index” by putting that index into the digit >>>>> buffer (e.g. 10 = “A”, 27 = space, 34 = “-”, etc.). >>>>> >>>>> _seven_segment_multiplexer_digit[0] = 10 -- "A" >>>>> _seven_segment_multiplexer_digit[1] = 11 -- "b" >>>>> _seven_segment_multiplexer_digit[3] = 27 -- "space" >>>>> >>>>> 3) Showing sbyte negative (e.g. -4) >>>>> Yes: display "-" (character index 34) on one digit and 4 on the other. >>>>> >>>>> _seven_segment_multiplexer_digit[0] = 4 -- "4" >>>>> _seven_segment_multiplexer_digit[1] = 34 -- "-" (minus) >>>>> >>>>> 4) Digits set to input go blank; when set back to output the old value >>>>> is gone >>>>> To blank/re-enable while keeping the previous value, keep multiplexing >>>>> running and blank via the digit data (e.g., use space index 27) rather >>>>> than >>>>> changing pin direction. >>>>> >>>>> Matt. >>>>> On Monday, January 19, 2026 at 5:20:16 PM UTC-5 [email protected] >>>>> wrote: >>>>> >>>>>> Hi Matthew >>>>>> Hi Matthew >>>>>> >>>>>> I have some question about the lib 'seven_segment' and >>>>>> 'seven_segment_multiplexer'. >>>>>> >>>>>> 1 It is possible to connect 4 displays but is it also possible to use >>>>>> 2 displays independent of the other 2? >>>>>> For example: 2 digits for up to 99 and 2 digits for down from 99 >>>>>> >>>>>> 2 How can I use the characters of the lib 'seven_segment' in >>>>>> 'seven_segment_multiplexer'? >>>>>> >>>>>> 3 Is it possible to get a sbyte (-4) on the display? >>>>>> >>>>>> 4 When I make 2 displays 'input' their displays are off; when I make >>>>>> them 'output again the last information on the displays is gone and the >>>>>> displays give the start information. Is it possible the information will >>>>>> come back on the displays? >>>>>> >>>>>> Regards, Peet >>>>>> >>>>> -- You received this message because you are subscribed to the Google Groups "jallib" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/jallib/43764183-de0b-4f88-b580-14e1c7fa3e4cn%40googlegroups.com.
