Vga
agkaminski·hw_projects·VGAtest/kicad/vga.kicad_pcb
About the Vga PCB
Vga is an open source AVR/Arduino PCB design by agkaminski, published on GitHub. It is a 2-layer board measuring 129.5 × 74.2 mm, with 36 components from 18 distinct parts.
Its main chip is the ATmega16-16P, from the AVR/Arduino family. Other key parts include the 74HC245, 6264, 74HC574, 2764 and 74HC02. By type, the board carries 13 capacitors, 11 ICs, 8 resistors, 2 connectors and 1 crystal.
From the project
Various hardware projects that do not deserve their own repository.
Proof of concept VGA 640x480@60Hz video adapter. Only 80x60 text mode is supported, up to 4 fonts (8x8 font, 256 char each.

Main components on the Vga
Vga bill of materials (BOM)
36 components, 18 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74HC245 | DIP-20_W7.62mm | U1 |
| 1 | 6264 | DIP-28_W15.24mm | U2 |
| 2 | 74HC574 | DIP-20_W7.62mm | U3, U9 |
| 1 | 2764 | DIP-28_W15.24mm | U4 |
| 1 | 74HC02 | DIP-14_W7.62mm | U5 |
| 2 | 74AHC244 | DIP-20_W7.62mm | U6, U7 |
| 1 | 74HC166 | DIP-16_W7.62mm | U8 |
| 1 | ATmega16-16P | DIP-40_W15.24mm | U10 |
| 1 | XC9536PC44 | PLCC-44_THT-Socket | U12 |
| 1 | ACO-25.175MHz-A | Oscillator_DIP-14 | X1 |
| 1 | Conn_02x03_Odd_Even | IDC-Header_2x03_P2.54mm_Vertical | J1 |
| 1 | USB_C_Receptacle_PowerOnly_6P | USB_C_Receptacle_GCT_USB4135-GF-A_6P_TopMnt_Horizontal | J3 |
| 1 | Conn_02x05_Odd_Even | IDC-Header_2x05_P2.54mm_Vertical | JTAG1 |
| 13 | 100n | C_Disc_D5.0mm_W2.5mm_P5.00mm | C1, C2, C3, C4, C5, C6, C7, C8 +5 |
| 1 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 2 | 100R | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R3 |
| 3 | 470R | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R5, R6 |
| 2 | 1K5 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7, R8 |
Vga design files
The KiCad project lives in the agkaminski/hw_projects repository on GitHub; these links point at the commit this page was built from.
- LayoutVGAtest/kicad/vga.kicad_pcb
- SchematicVGAtest/kicad/vga.kicad_sch
Vga: common questions
What microcontroller does the Vga use?
The Vga is built around the ATmega16-16P, from the AVR/Arduino family.
How big is the Vga PCB?
The Vga measures 129.5 × 74.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Vga?
36 components, from 18 distinct parts. The full bill of materials is listed on this page.
Where can I download the Vga design files?
From the agkaminski/hw_projects repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Vga design in my own project?
The repository has no license, so all rights stay with agkaminski. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Vga without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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