https://github.com/terjekbela/rgbargy

VGA driver lib for arduino rp2040/rp2350
https://github.com/terjekbela/rgbargy

arduino pico rp2040 rp2350 vga

Last synced: about 1 month ago
JSON representation

VGA driver lib for arduino rp2040/rp2350

• Host: GitHub
• URL: https://github.com/terjekbela/rgbargy
• Owner: terjekbela
• License: mit
• Created: 2024-11-17T23:36:33.000Z (about 2 months ago)
• Default Branch: master
• Last Pushed: 2024-11-21T16:16:32.000Z (about 1 month ago)
• Last Synced: 2024-11-21T16:31:57.880Z (about 1 month ago)
• Topics: arduino, pico, rp2040, rp2350, vga
• Homepage:
• Size: 5.86 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

Awesome Lists containing this project

README

        
# RGBargy - a VGA display library for Arduino and RP2* microcontrollers

This is an arduino library providing a display-driver using the VGA protocol for the RP2* family of microcontrollers. The goal of this library is to provide an easy way to drive a relatively low-res vga screen from directly the arduino framework, and not having to install the pico development environment.

## Hardware connections / pinout

| RP2040 GPIO pin | VGA connector pin |

|-----------------|-------------------|

| GPIO 4          | Horizontal sync   |

| GPIO 5          | Vertical sync     |

| GPIO 6          | Red (w/330R)      |

| GPIO 7          | Green (w/330R)    |

| GPIO 8          | Blue (w/330R)     |

| GND             | GND               |

## VGA timings for popular resolutions and refresh rates

| Resolution | Refresh rate | Pixel freq |  Horizontal     |                |                | Vertical |      |      |

|------------|--------------|-----------:|----------------:|---------------:|---------------:|---------:|-----:|-----:|

|            |              |            | front
porch | sync
pulse | back
porch | front    | sync | back |

|            |              |            | front
porch | sync
pulse | back
porch | front    | sync | back |

|   640x480  |        60 Hz | 25.175 MHz |              16 |             96 |             48 |       11 |    2 |   31 |

|   640x480  |        72 Hz | 31.500 MHz |              24 |             40 |            128 |        9 |    3 |   28 |

|   640x480  |        75 Hz | 31.050 MHz |              16 |             96 |             48 |       11 |    2 |   32 |

|   640x480  |        75 Hz | 31.050 MHz |              32 |             48 |            112 |        1 |    3 |   25 |

|   800x600  |        56 Hz | 38.810 MHz |              32 |            128 |            128 |        1 |    4 |   14 |

|   800x600  |        60 Hz | 40.000 MHz |              40 |            128 |             88 |        1 |    4 |   23 |

|   800x600  |        72 Hz | 50.000 MHz |              56 |            120 |             64 |       37 |    6 |   23 |

|   800x600  |        75 Hz | 49.500 MHz |              16 |             80 |            160 |        1 |    2 |   21 |

|   800x600  |        85 Hz | 56.250 MHz |              32 |             64 |            152 |        1 |    3 |   27 |

|  1024x768  |        60 Hz | 65.000 MHz |              24 |            136 |            160 |        3 |    6 |   29 |

|  1024x768  |        70 Hz | 75.000 MHz |              24 |            136 |            144 |        3 |    6 |   29 |

|  1024x768  |        75 Hz | 78.750 MHz |              16 |             96 |            176 |        1 |    3 |   28 |

|  1024x768  |        85 Hz | 94.500 MHz |              48 |             96 |            208 |        1 |    3 |   36 |