E-Ink Display on T-Beam V1.2

[ralphem]

Hello, i have an strange effect with e-ink display. the 2,9 eInk(V1) is function only wiht software parameter V2 of E-Ink. only the wire must very shortly cut . It´s dont need remove any resistors. The display 2,9 inch V2 dosn´t function ( also not with short wire). I had change the display to 2,13 inch and function with software parameter (E-Ink V2) directly. But some lines was trapped. This is reproducibly. Have anyone experience for that connect Wave Share E-Ink 2,9 Inch V2 ? Another question. The BUZZER must connect to PIN 25 on. I had tested 2 different type ( 2 wire and 3 wire ´plus/minus/signal´) , but no sound . With oszilloscope i cannot found any signal on pin 25. The display and webfrontend switched for low, mid and high signal. Was an change in the firmware , i had tested V5.3.x. / 5.4.0. and 5.4.1 ? Have anyone experience therefor?

Best regards

[mikechristiansen]

Hi Ralphem, Ive had some issues recently with the 2.9" V2 display. See this faccbook post. https://www.facebook.com/groups/1130097100726170/permalink/1853962685006271/?mibextid=uJjRxr Essentially I was having an issue with any reboot the screen not working. I ended up swapping pin 25 with pin 0 so that my e-ink reset is now 25 and the buzzer is now 0. I compiled the code with these changes, changed my wiring and now Its working fine. I believe there was a change made in code at version 3 swapping these.

I think you are experiencing the same issue I had as your also having buzzer issues.

Hope this helps!

[ralphem]

Hi mikechristiansen, many thanks for your post. i have read your facebook tweet. it´s verry interesting. My english isn´t very good. i´am not programmer, and i cold not found an .ino file (for Arduino IDE - GXAircom master) for compilation in new config (change port for buzzer). I have only probe compilation the softrf. these i can found here in github. in my config is port 0 open. i found the port config for 2,9 E-inc. also how your set. RST - 0 ( i have changed to VCC) DC-32 CS-15 CLK-4 DIN-2 Busy-33. in another tweet i found the RST Change for VCC normal i use the BIN files and flash the T-Beam with ´flash-dowload tool´, it´s easyer for me. When do you have the software (GXAircom _master ) for compilition itself, i would like take this. (for Arduino IDE?)

one question i have: do you have remove 2 resistores in the right side by USB connector?

Best regards

[mikechristiansen]

Ralphem, I did remove the resistors - did not try the screen prior. You can compile the firmware using visual studio and platformIO - ive just learnt this program myself!

These are the changes I made.

//V3.0.0 changed from PIN 0 to PIN 25 // PinBuzzer = 25; - Changed back to 0 for E-Ink. PinBuzzer = 0;

//E-Ink PinEink_Busy = 39; //PinEink_Rst = 0; - changed to 25 PinEink_Rst = 25; PinEink_Dc = 15; PinEink_Cs = 13; PinEink_Clk = 14; PinEink_Din = 2;

Hope this helps!

[ralphem]

Hi mikechristiansen, i hade tested an T-Beam V1.0, and what can i say, is function without change. now i will search in the next time what is the issues in this case with V1.2 T-Beam. Many thanks for your help.