Solo-A
About the Solo-A PCB
Solo-A is an open source PCB design by solokeys, published on GitHub under the CC-BY-SA-4.0 license. It is a 4-layer board measuring 46.3 × 15 mm, with 48 components from 24 distinct parts.
Other key parts include the LPC55S28JEV98K. By type, the board carries 15 capacitors, 11 resistors, 5 diodes, 3 switches, 2 inductors and 1 IC.
From the project
Hardware sources for Solo 1
The HW sources for Solo, the open source security token.
Note that master may be "broken" at times, so you should check using one of the releases first.
For schematic, BOM, and gerber information, see the releases.
You may use Solo under the terms of either the CERN OHL 1.2 license or the CC BY-SA 4.0 license.
Also the hardware used for all future Solo models.
Main components on the Solo-A
Solo-A bill of materials (BOM)
48 components, 24 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LPC55S28JEV98K | BGA98C50P13X13_700X700X97N | U1 |
| 2 | DNP | 0201_C | CX1, CY1 |
| 1 | GD25Q16CEIGR | FLASH_2x3_USON8 | F1 |
| 1 | AS3956-CSP | AS3956_CSP | N1 |
| 1 | USB | USB-A | S2 |
| 1 | FSUSB42 | FSUSB42 | SW1 |
| 1 | TLV742p | Texas_X2SON-4_1x1mm_P0.65mm | T1 |
| 1 | TOP_A | top-A | TOP1 |
| 5 | ESDZV5-1BF4 | 0201_R | Z1, Z2, Z3, Z4, Z5 |
| 1 | side_buttons | side_buttons | caps1 |
| 1 | ARM_DEBUG | TC2030-IDC-NL | D1 |
| 4 | BAT30F4 | 0201_Polar | D3, D4, D5, D6 |
| 1 | LED_RGBA | RGB_LED_606 | L1 |
| 1 | 4u7H | L_0603_1608Metric | L2 |
| 10 | 4.7u | 0201_C | C1, C3, C5, C6, C7, C8, C9, C10 +2 |
| 2 | 10uF | C_0402_1005Metric | C13, C17 |
| 2 | 100nF | 0201_C | C14, C15 |
| 1 | 47pF | 0201_C | C16 |
| 1 | 180R | 0201_R | R1 |
| 1 | 5k | 0201_R | R2 |
Show 4 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 50k | 0201_R | R3 |
| 3 | 10k | 0201_R | R4, R6, R8 |
| 3 | 1M | 0201_R | R5, R7, R9 |
| 2 | 30R | 0201_R | R10, R11 |
Solo-A design files
The KiCad project lives in the solokeys/solo-hw repository on GitHub; these links point at the commit this page was built from.
- Layoutkicad/solo-A.kicad_pcb
Solo-A: common questions
How big is the Solo-A PCB?
The Solo-A measures 46.3 × 15 mm, has 4 copper layers and is 0.8 mm thick.
How many components are on the Solo-A?
48 components, from 24 distinct parts. The full bill of materials is listed on this page.
Where can I download the Solo-A design files?
From the solokeys/solo-hw repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Solo-A design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which solokeys chose for the repository.
