Dear All, At first, happy new year! I use Arduino's to manage a model railway circuit. I need to read a lot of sensors, change the direction of the turnouts, calculate if a train can run or stop. For doing that I need a lot of variables and I have to trace them and of course print and format them…

Hi @alain9080 See if this helps: [image] Turn your Uno into a VGA output device! Displays After playing with the MicroVGA card, I was wondering if it was possible to simply output VGA video directly from the Uno? And it turns out, yes it is ... see photo: [image] This …

Why don't you just use a display like ILI9341 with 240x320 resolution and SPI interface for example? http://www.lcdwiki.com/3.2inch_SPI_Module_ILI9341_SKU:MSP3218

Dear All Thanks a lot for your answer. @ ruilviana: It seems that today the Micro VGA shield is out of stock. I tried to output VGA directly from an Arduino. Of course it is working but need a lot of resources even if i use a secondary Arduino as a slave to manage the Vga output. I need a refresh …

[image] alain9080: Do you know the maximum length of the SPI wires ? I don't know. Maybe you can transmit the data wirelessly and another Arduino with a suitable display can visualize it? Or with ESP8266 and Wi-Fi to watch them on your phone, tablet or laptop.

My goal is just to display data for debugging ! This is why I would like to reuse a basic pc screen 80 * 25! Thanks

Does the display have HDMI? How about using a raspberry pi?

Or an Arduino with a long enough USB cable connected to a laptop and running a program in 'Processing' for data visualization. Welcome to Processing! Processing is a flexible software sketchbook and a language for learning how to code. Since 2001, Processing has promoted software litera…

Hello I have a screen with an HDMI. I started my project there were 6 years ago and at this time i have chosen Arduino. Why because Arduino is more suitable regarding my usage that is an "automat" and need to read / write multiple "bits". And again I just need to trace data during debugging. Tha…

I do not want to use a laptop !

I was not suggesting that you use a raspberry pi for the project itself, but rather as the interface between the arduino and the display. A raspberry pi zero running a VT100 emulator (or similar terminal program) would allow the arduino to send commands over USB / serial / I2C to control what was d…

Screen 80 columns * 25 lines for Arduino

Other Hardware Displays

ruilviana January 4, 2022, 6:28pm 2

Hi @alain9080

See if this helps:

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Screen 80 columns * 25 lines for Arduino

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