Helloeverybody!Constructionofmy"myFC2"isinprogressbutIcomebackwithmyquestionforabiggestscreenthantheoled0.96" !I've seen into document file "myFP2-315.pdf" that exists a TFT 1.8 " screen.=>It's possible to use it directly with myFP2 pcb (nano arduino)? If yes what PCB/firmware must be choose :=> the DRV8825HW203-M-MT-F-BT ?Andit's not possible, my last question it'sthesamewiththeTFTLCD1602IICI2CTWI1602?
Thankforyourreply.
Regards
Make sure you read all this message before making a decision
That color one is UTFT (2.2"), not TFT (which is 1.8" and different driver and is monochrome as is veru slow to update the screen).
I am not sure if any are available,
I have zipped up all the files about this version
It was done on a strip board (layout included) and no PCB was ever made for this version
It requires a separate diy board (stripboard) using two level translators to go from 3.3V to 5V as the display is a 3,3V design and uses hardware spi.
The firmware is
myFP2_DRV8825HW203_318 with UTFTDIDPLAY enabled
//-----------------------------------------------------------------------// UTFT22 DISPLAY//-----------------------------------------------------------------------// To enable a UTFT22 display on the UTFT22 stripboard, uncomment the next line#define UTFTDISPLAY 1
because of all the pins needed to drive SPI, you cannot have
home position switch
infrared controller
rotary encoder
and probably more (cant remember)
It requiires a special library I hacked to make it work. Its mentioned in the documentation.
It will require a lot of soldering etc, I would advise against trying to fit this to an existing PCB - it would end up probably butchering the PCB to make it work.
The display does look nice in color and the page updates are quick (because of SPI).
It is a geat deal of work though, just to get a color display. Which is why I recommended the Nextion touch display. That inferaces with 4 wires, may be easy enough to build a case with a 4pin socket connection, and put the display in a small hand help container I guess, then when you need a display just "plus-in" the nextion and tap away. Have not tried it, I prefer not to have one (no point for me and I am not interested in visual stuff, I prefer the remote access and keep nice and warm).
Hello Robert , thank you for your help, I 've just study your explanations.
But I don't to go with this solution , I've not enough place in my telescope's paddle to include another PCB.
So this afternoon I've seen on the Web who existe a biggest oled screen than 0.96" => 1.3"
- same IC2 bus (4 pins) 128x64 .
Could you tell me if it is possible to use it instead without changing anything ?
Hi
the pdf covers this, explaining that the display 1.3" uses the other SSHxxx driver/ So the only change required is to make that change and reprogram the controller.
the 1.3" is not that much bigger, as the resolution is still 128x64 pixels and the 1.3" refers to the diagonal just the sane way that TC screen sizes are done
You may end up being disappointed with the 1.3" as well
regards
Robert
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hello robert again thank you for your quick reply !
Ok price of display 1.3 " is small around 10 $, I buy it now on Amazon to see ...
For the moment I assembly all on a test plate.
Now I'm understand with SSHxxx driver 's changes to do.
Here we are few diy nomad astronomer amateurs to look to use myFocuserPro2 with OneStep /TeenAstro telescope's goto drive.
Regards , Phil.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Make sure you read all this message before making a decision
That color one is UTFT (2.2"), not TFT (which is 1.8" and different driver and is monochrome as is veru slow to update the screen).
I am not sure if any are available,
I have zipped up all the files about this version
It was done on a strip board (layout included) and no PCB was ever made for this version
It requires a separate diy board (stripboard) using two level translators to go from 3.3V to 5V as the display is a 3,3V design and uses hardware spi.
The firmware is
myFP2_DRV8825HW203_318 with UTFTDIDPLAY enabled
because of all the pins needed to drive SPI, you cannot have
home position switch
infrared controller
rotary encoder
and probably more (cant remember)
It requiires a special library I hacked to make it work. Its mentioned in the documentation.
It will require a lot of soldering etc, I would advise against trying to fit this to an existing PCB - it would end up probably butchering the PCB to make it work.
The display does look nice in color and the page updates are quick (because of SPI).
It is a geat deal of work though, just to get a color display. Which is why I recommended the Nextion touch display. That inferaces with 4 wires, may be easy enough to build a case with a 4pin socket connection, and put the display in a small hand help container I guess, then when you need a display just "plus-in" the nextion and tap away. Have not tried it, I prefer not to have one (no point for me and I am not interested in visual stuff, I prefer the remote access and keep nice and warm).
regards
Robert
Last edit: brownrb 2022-10-01
see
https://sourceforge.net/projects/arduinoascomfocuserpro2diy/files/STRIPBOARDS/BOARD%20DRV8825%20TFT2_2%20V2/
Hello Robert , thank you for your help, I 've just study your explanations.
But I don't to go with this solution , I've not enough place in my telescope's paddle to include another PCB.
So this afternoon I've seen on the Web who existe a biggest oled screen than 0.96" => 1.3"
- same IC2 bus (4 pins) 128x64 .
Could you tell me if it is possible to use it instead without changing anything ?
Thank you in advance.
Hi
the pdf covers this, explaining that the display 1.3" uses the other SSHxxx driver/ So the only change required is to make that change and reprogram the controller.
the 1.3" is not that much bigger, as the resolution is still 128x64 pixels and the 1.3" refers to the diagonal just the sane way that TC screen sizes are done
You may end up being disappointed with the 1.3" as well
regards
Robert
Hello robert again thank you for your quick reply !
Ok price of display 1.3 " is small around 10 $, I buy it now on Amazon to see ...
For the moment I assembly all on a test plate.
Now I'm understand with SSHxxx driver 's changes to do.
Here we are few diy nomad astronomer amateurs to look to use myFocuserPro2 with OneStep /TeenAstro telescope's goto drive.
Regards , Phil.