EmbDev.net

Forum: µC & Digital Electronics LCD replacement for GM328a


von Javier G. (javieracdc)


Attached files:

Rate this post
0 useful
not useful
Hello
Recent I broke the LCD track and shows nothing on the screen. I've been 
looking for a screen on AliExpress, but I have a lot of doubts since the 
original screen comes a separate controller, and those selling on 
AliExpress don't have it. Anyone recommends a screen to replace it 
please?

: Edited by User
von Dennis H. (c-logic)


Rate this post
-1 useful
not useful
the CD4050 is a voltage-converter not an lcd-controller.

von Javier G. (javieracdc)


Rate this post
0 useful
not useful
Dennis H. wrote:
> the CD4050 is a voltage-converter not an lcd-controller.

Ok thanks for The correction, any lcd for replacement?

von Dennis H. (c-logic)


Rate this post
0 useful
not useful
Its a ST7735S compatible

here was the same problem Beitrag "AVR TransistorTester China DIY Kit - Display zeigt nichts an"

most display boards on aliexpress are only 3.3V compatible.

the second problem is is the pin assignment compatible.

von Dennis H. (c-logic)


Rate this post
0 useful
not useful
or you buy the original https://3v3.com.ua/product_8282.html
and replace the display only.

i think this is critical.

the easier way ist to measure the pin assignments and buy a 
5V-compatible model with the same pin assignment or something like that.

von Javier G. (javieracdc)


Rate this post
0 useful
not useful
I've found the LCD on aliexpress

US $3.20 | Puerto serial SPI TFT de 1,8 pulgadas, pantalla LCD a color, 
18PIN, 128x160, ST7735S, espaciado de pines, 0,8 MM, Z180SN007, para 
probador de Transistor GM328A
https://a.aliexpress.com/_mL9kGPP

Unfortunately, the price+shipping cost the same than buy a new one

US $6.74  5%OFF | Probador multifuncional de Transistor GM328, 
capacitancia de diodo, medidor de frecuencia de voltaje ESR PWM, 
generador de señal de onda cuadrada
https://a.aliexpress.com/_mOGt8t7

So I bought a new one and I will save the remaining pieces.

Reply

Entering an e-mail address is optional. If you want to receive reply notifications by e-mail, please log in.

Rules — please read before posting

  • Post long source code as attachment, not in the text
  • Posting advertisements is forbidden.

Formatting options

  • [c]C code[/c]
  • [avrasm]AVR assembler code[/avrasm]
  • [code]code in other languages, ASCII drawings[/code]
  • [math]formula (LaTeX syntax)[/math]




Bild automatisch verkleinern, falls nötig