Please consider adding 40x2 LCD display support to Wokwi

[Xname41]

Hi,

I recently started working on a project that uses a 40x2 LCD display with the familiar HD44780 controller. I tried to emulate it in Wokwi but noticed that there’s no such configuration available.

Since Wokwi already supports 16x2 and 20x4 displays, I assume adding 40x2 might not be too complex — especially considering it uses the same controller.

Having this display would be very helpful for those of us working on hardware projects that rely on this format, and it would make the simulation more realistic.

Thanks in advance — and great work on Wokwi! It's an incredibly useful tool.

[urish]

Thanks for creating the request! Do you have the physical part?

If so, are you able to share several examples of code + a photo of what the result look like on the physical part?

[Xname41]

the display is taken from an old Roland E86 synthesizer, it also has a rotary encoder, the idea is to connect it to the Arduino 2560 or ESP32-C6 to implement various ideas, but for this purpose they must first be tested through the WOKWI simulator to see if the code functions correctly and then loaded into the hardware

https://i.imgur.com/mdEupNC.jpeg

[Xname41]

The clock - stopwatch consists of a 6-digit display with hours, minutes and seconds and also three buttons SET, plus +, minus -. By holding down the SET button, the clock setting mode is entered, first the hours start flashing, which means that they can be set with plus or minus, by holding down the plus or minus button, automatic counting up or down begins, by next short pressing the SET button, the minutes start flashing, which means that they can be set using plus and minus in a similar way as the hours, and finally by next pressing the SET button, the seconds start flashing, which means that they can also be set in a similar way. By next short pressing the SET button, the clock setting mode is exited and the new set time is confirmed. The stopwatch mode is entered by short pressing the SET button, it displays minutes, seconds and milliseconds in a two-digit version. The plus button starts and stops the count, and the minus button resets it, if we exit the stopwatch mode when the stopwatch is not reset by the minus button, it will remain in this state until we manually reset it by the minus button in stopwatch mode, this means that it remembers the last displayed value even in clock mode

I intentionally left the scan frequency around 50 hertz so that the flicker effect can be seen

link to the idea:
https://wokwi.com/projects/434656897333451777

video: https://drive.google.com/file/d/1VJFwN11AczbkfyuVlviD2JI8lARSIxHv/view?usp=drive_link