I've linked a source for the original displays from TaoBao earlier.
I'm not too sure that the display from RS will physically fit because the original is 2.4" not 2.7"
Fair enough, I also ordered a couple 1309 (or was it 1306) displays originally but I haven't been able to test it because I lost the daughter board
.
Keep us posted when you get them.
So how do you use it without the daughterboard ? Stack in on top of paper to ensure it doesnt get blown off ?
I don't
. I'll a photo next time I attempt to get it to work. I've got a 2mm to 2.54mm adaptor which lets me insert wires to connect to a breadboard on which I have a level shifter which then connects to a display that I have broken out the pins on. This didn't work because I think I've got a mistake in my traceout of the daughterboard pcb, which is why I've been asking for photos of both sides so I can check where I went wrong in my guesses.
You still need the high res pic ? I thought you already have it since you post the tracing picture. My phone camera can't get a better picture than what you posted, very difficult to see the trace. I'll try grabbing my better cam tomorrow and take a picture.
What display are you trying to concoct ?
Thanks ultrasmurf,
I can make do with the current quality (as in my tracing picture), but my problem is that I don't have the other side of the board so I had to make some guesses. If I can get a photo of the other side (with the original display removed) then that would help me a lot. I'm in no hurry for the pics so if you take them when you try the swap that would be great. I won't be able to have another crack at it for a month or two anyway.
I just checked and it was a ssd1309 2.4" display that I was trying to make work with no luck.
there goes my 20 bux....
Any reason why you dont just desolder the old oled display and replace them with the 2.4" display with ssd1309 ? From what I see they are pin compatible to U1253x display ( the different one were not connected to anything anyway...)
That was my plan.
This is what happened
.
1. Desoldered display from daugherboard (black pcb)
2. Ordered new displays (ssd1309)
3. Displays arrived, was keen to solder it in.
4. Couldn't find where I left the daughterboard.. I suspect it accidentally got knocked into my bin.
Well, I submitted an order with Yoybuy for a few of the OEM parts cookieman linked. I'll let you all know how surgery goes when they arrive in a few weeks.
EDIT: And the taobao order was cancelled. Apparently, even though they show stock of nearly 4k units, they're "out."
High res picture of the daughter board.
Let me know if it doesnt show up. apparently the previous attempt require my login to google photo before it shows up....
Hi
Can you upload pics of the display itself?
and pict front view of the display and its dimensions?
High res picture of the daughter board.
Let me know if it doesnt show up. apparently the previous attempt require my login to google photo before it shows up....
What are those wires you've got there?
Those wires are the supply voltage for the ssd1303... just making sure that I don't have dead display because the supply is not there...
max-bit: a couple of post above already cover the correct spec for the display, and even the oem for the display.
Thanks ultrasmurf for the photos! They will be very helpful, I can already see that I have indeed made some mistakes in my original trace out.
I won't have the time to have another go at prototyping the circuit for 1~2 weeks but I'll keep everyone updated when I do.
Superb finding... Will get from the site if shipping is not too expensive and my 1309 display replacement is not compatible.. looks like my ordered display is coming in 2 weeks time, hopefully I will have time to quickly test it and update you guys here...
A quick google search for “BL12864G site:.de” (that being the part number from the photo, and a restriction to German websites) showed this as the second hit:
http://www.lcdstore.de/OLED-Modul-128x64-Punkte-monochrom
I have a U1252B, but am interested to see how the OLED replacement/upgrade goes on the 3. It'd be great if a newer model display with better performance can work.
I have a U1252B, but am interested to see how the OLED replacement/upgrade goes on the 3. It'd be great if a newer model display with better performance can work.
The 1252B isn't easily upgradable as there's a 3rd board for the OLED models. Board #2 is different as well between the two different display types regarding the display driver chip IIRC.
That said, you're better off with the U1252B's LCD display anyway (mine's 8 or nine years old, no broken display yet). Backlight is very nice, and it has improved battery life (~9hrs vs. ~36hrs for the LCD version per the specs).
The OLED might give you ~5 yrs of service if you're lucky.
And regarding battery life, I keep 8.4V, 300mAh rechargeable NiMH batteries ready to go. Not only are they convenient, but they're less expensive in the long run as well. One last tidbit, the battery life spec on the U1252 is based on a 7.2V unit, so an 8.4V unit will extend your battery life as well.
Sorry that the wording seemed to have caused confusion. I'm not seeking to change my 1252. I bought it specifically for the LCD screen. Rather, I'm just curious to see if those who have a 1253 are able to find a workable replacement for their OLED screens.
I only mentioned the model I have so folks won't wonder why I'm not upgrading my meter.
Sorry that the wording seemed to have caused confusion. I'm not seeking to change my 1252. I bought it specifically for the LCD screen. Rather, I'm just curious to see if those who have a 1253 are able to find a workable replacement for their OLED screens.
I only mentioned the model I have so folks won't wonder why I'm not upgrading my meter.
Ah, got it.
FWIW, I suspect they'll succeed.
PROGRESS!
I've got the SSD1309 display working! it is mirrored unfortunately though.
Thanks @ultrasmurf again for the clear photo of the pcb back.
I've got the SSD1309 display working! it is mirrored unfortunately though.
No worries, just put a mirror on the bench.