Frontpanel
About the Frontpanel PCB
Frontpanel is an open source PCB design by joewing, published on GitHub. It is a 2-layer board measuring 154 × 100 mm, with 74 components from 24 distinct parts.
By type, the board carries 26 diodes, 26 resistors, 20 switches and 2 connectors.
From the project
12-bit single-board discrete transistor computer
Hardware for the Q2 12-bit computer made from programmable logic devices. Compared to the original Q2, the Q2A should be easier to have fabricated (it uses through-hole components making it easy to hand assemble). In addition, the Q2A has a faster clock and a nicer enclosure.
Note that the current iteration of the Q2A does not support the memory extension device or I2C.
Frontpanel bill of materials (BOM)
74 components, 24 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | High | IDC-Header_2x20_P2.54mm_Vertical | J1 |
| 1 | Low | IDC-Header_2x20_P2.54mm_Vertical | J2 |
| 1 | 0 | SW_MINI_TOGGLE | SW1 |
| 1 | DEP | SW_MINI_TOGGLE | SW2 |
| 1 | 1 | SW_MINI_TOGGLE | SW3 |
| 1 | INC | SW_MINI_TOGGLE | SW4 |
| 1 | 11 | SW_MINI_TOGGLE | SW5 |
| 1 | POWER | SW_MINI_TOGGLE | SW6 |
| 1 | FIELD1 | SW_MINI_TOGGLE | SW7 |
| 1 | 9 | SW_MINI_TOGGLE | SW8 |
| 1 | FIELD0 | SW_MINI_TOGGLE | SW9 |
| 1 | 8 | SW_MINI_TOGGLE | SW10 |
| 1 | 10 | SW_MINI_TOGGLE | SW11 |
| 1 | 7 | SW_MINI_TOGGLE | SW12 |
| 1 | 6 | SW_MINI_TOGGLE | SW14 |
| 1 | START | SW_MINI_TOGGLE | SW15 |
| 1 | 5 | SW_MINI_TOGGLE | SW16 |
| 1 | STOP | SW_MINI_TOGGLE | SW17 |
| 1 | 4 | SW_MINI_TOGGLE | SW18 |
| 1 | SET | SW_MINI_TOGGLE | SW19 |
Show 4 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 2 | SW_MINI_TOGGLE | SW20 |
| 1 | 3 | SW_MINI_TOGGLE | SW22 |
| 26 | LED | LED_D3.0mm | D1, D2, D3, D4, D5, D6, D8, D9 +18 |
| 26 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3, R4, R5, R6, R8, R9 +18 |
Frontpanel design files
The KiCad project lives in the joewing/q2 repository on GitHub; these links point at the commit this page was built from.
Frontpanel: common questions
How big is the Frontpanel PCB?
The Frontpanel measures 154 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Frontpanel?
74 components, from 24 distinct parts. The full bill of materials is listed on this page.
Where can I download the Frontpanel design files?
From the joewing/q2 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Frontpanel design in my own project?
The repository has no license, so all rights stay with joewing. Use it as a reference, and ask the author before reusing the design.
