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System cost vs LCD

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[email protected] All Messages By This Member #2201 The LCD is the most expensive part on the PCB by a fair margin. Has anyone looked at replacing it for lower-cost users with seven-segment and/or discrete LEDs? Is there a spec for what data is required to be displayed? Stay well! Steve
Robert L Read Member Profile All Messages By This Member #2202 This team: of Jenny Filipetti and John Bennet have tried to produce such a standard.? I don't know that it has any accpetance, but it is at least a well-described standard. toggle quoted message Show quoted text On Wed, Jun 24, 2020 at 1:05 PM <Vent@...> wrote: The LCD is the most expensive part on the PCB by a fair margin. Has anyone looked at replacing it for lower-cost users with seven-segment and/or discrete LEDs? Is there a spec for what data is required to be displayed? Stay well! Steve -- Robert L. Read, PhD Twitter: @RobertLeeRead @pubinvention Public Invention:? Join Our Mailing list:?pubinv@... YouTube:? Medium:?
Arv Evans All Messages By This Member #2203 There are lots of 1602 style LCD displays available via Ebay. If I understand correctly, the problem is that QRP-Labs supplier? did not or could not supply the correct ones in adequate numbers? for Hans` large quantity order.? This does not stop individuals? from obtaining a few (small quantities) for personal use from? any of various suppliers. Arv _._ toggle quoted message Show quoted text On Wed, Jun 24, 2020 at 12:05 PM <Vent@...> wrote: The LCD is the most expensive part on the PCB by a fair margin. Has anyone looked at replacing it for lower-cost users with seven-segment and/or discrete LEDs? Is there a spec for what data is required to be displayed? Stay well! Steve
Arv Evans All Messages By This Member #2204 Sorry...Steve and others.... I was discussing lack of LCD displays over on the QRP-Labs group and? absent?mindedly posted a comment on LCD availability to the Ventilator? Discussion? group.? Answer is still valid, but was posted to the wrong group. Arv _._ toggle quoted message Show quoted text On Wed, Jun 24, 2020 at 1:25 PM Arv Evans via <arvid.evans=[email protected]> wrote: There are lots of 1602 style LCD displays available via Ebay. If I understand correctly, the problem is that QRP-Labs supplier? did not or could not supply the correct ones in adequate numbers? for Hans` large quantity order.? This does not stop individuals? from obtaining a few (small quantities) for personal use from? any of various suppliers. Arv _._ On Wed, Jun 24, 2020 at 12:05 PM <Vent@...> wrote: The LCD is the most expensive part on the PCB by a fair margin. Has anyone looked at replacing it for lower-cost users with seven-segment and/or discrete LEDs? Is there a spec for what data is required to be displayed? Stay well! Steve
Tom, wb6b All Messages By This Member #2205 On Wed, Jun 24, 2020 at 11:05 AM, <Vent@...> wrote: replacing it for lower-cost users with seven-segment and/or discrete LEDs? I was surprised recently when I was designing a little remote monitor and thought it would be nice for it to have a local display on the device. Originally I thought a 7 segment display like what might have been in older calculators would give a nice retro look and be a simple solution. To my amazement 7 segment displays cost more than modern displays. Plus you had to deal with the software multiplexing and the I/o pins needed to do that.? I finally settled on a small OLED graphics display for just over three of dollars (there are some for as low as $1.50). Even with larger displays, the TFT LCD and OLED displays are mass produced while the 7 segment LED displays seem to be a specially item. The former seem to still be the better bargain. It may have been that I just did not find a low cost supplier for the 7 segment displays, but I did do a reasonable search. Tom, wb6b

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