wtb: 20x2 Character VFD LCD 20T202DA2JA - Page 1
Forum section: electronics / general

author: DiTBho
author_rank: Super Contributor
timestamp: April 10, 2022, 06:37:06 pm
content: hifor a project I need a replacement unit for the original used LCD, a 20x2 Character VFD (Vacuum Fluorescent Display) - SPI interface - 20T202DA2JASold years ago byAdafruit, now discontinuedLet me know if you have qty=1..2 for sale

author: coromonadalix
author_rank: Super Contributor
timestamp: April 11, 2022, 10:46:50 am
content: https://www.ebay.com/itm/142800596185but they say compatible,pinout seems different?BUTif you search the 20T202DA2JA part the correct modeland pinoutshows on ebay ... good luck

author: DiTBho
author_rank: Super Contributor
timestamp: April 11, 2022, 12:20:28 pm
content: it looks different, also its documentation is confusing.Mine is SPI-only, while the one on eBay seems to have three bus-models- serial (SPI?)- motorola parallel bus- intel parallel busWho knows ... I have already written to the seller on eBay, but ...

author: DiTBho
author_rank: Super Contributor
timestamp: April 11, 2022, 04:23:27 pm
content: Found a seller that has the LCD part in stock, and it's exactly the Adafruit LCD.Unfortunately they don't accept order if inferior to 160 euro, therefore you have to buy qty=4 LCDs to have them dispatched.Nice that they have the LCD, but .... it's 200 euro shipped

author: coromonadalix
author_rank: Super Contributor
timestamp: April 12, 2022, 10:57:41 am
content: They make you pay for the rarity

author: alitronix
author_rank: Contributor
timestamp: April 13, 2022, 09:41:33 am
content: it is from FUTABA manufacturer ?I have some 2x20 VFD new, need to check, I have from futaba but if I remember also some 20T202DA.... need to check...how many do you need? at least 1 I'm sure I have.pm if u are still interested

author: philpem
author_rank: Frequent Contributor
timestamp: April 27, 2022, 09:41:29 am
content: I had a bunch of 20T202DA1J VFD displays way back when, they were Samsung SDI parts.Futaba or Noritake-Itron may have been a second source.

author: DiTBho
author_rank: Super Contributor
timestamp: April 27, 2022, 11:02:53 am
content: Quote from: philpem on April 27, 2022, 09:41:29 amare they the same type as those sold by Adafruit? SPI bus?

author: philpem
author_rank: Frequent Contributor
timestamp: April 27, 2022, 02:32:34 pm
content: Quote from: DiTBho on April 27, 2022, 11:02:53 amThe 20T202DA1J was parallel (or rather I used it in parallel mode). I remember it having some jumpers or solder pads to configure it, so it might have been jumperable for SPI mode.Edit - looks like the 20T202DA2JA is available on Aliexpress -https://www.aliexpress.com/item/32260092832.html. No relation to the seller, YMMV.

author: DiTBho
author_rank: Super Contributor
timestamp: April 27, 2022, 03:33:01 pm
content: This is the problem with Adafruit's: probably a wrong p / n because theirs is only SPI-bus.However I found a local shop here, it accepts a minimum order of 40 euros, so I can only buy one or two LCDs. A little expensive, but they are exactly what Adafruit sold years ago. It even says on the box.I will not change the LCD model, because I have already spent too much time on the mechanical parts and firmware, the LCD has to go into a project started many many years ago.it's time to complete it