Seqboard
About the Seqboard PCB
Seqboard is an open source PCB design by westlicht, published on GitHub. It is a 2-layer board measuring 147.3 × 38.1 mm, with 35 components from 19 distinct parts.
Other key parts include the ENC28J60-I/SP, SD-SOCKET-3M_SD-SOCKET-3M, NMH0512SC and J0026D21E_J0-A/B/F. By type, the board carries 16 capacitors, 7 resistors, 6 connectors, 4 ICs, 1 crystal and 1 inductor.
From the project
MIDIbox SEQ V4 Build
This repository contains some documentation and data created during the build process of a MIDIBox SEQ V4. Please note that I'm not the original author of the project. The original project is hosted at http://ucapps.de
I ordered the PCBs from http://midiboxshop.bigcartel.com
- 1x CORE STMF32 BOARD - 2x MIDI I/O MODULE BOARD - 1x DOUT MODULE BOARD - 1x AOUT_NG BOARD - 1x SEQ CS BOARD
Main components on the Seqboard
Seqboard bill of materials (BOM)
35 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ENC28J60-I/SP | DIP-28_W7.62mm_LongPads | IC1 |
| 1 | SD-SOCKET-3M_SD-SOCKET-3M | SD-SOCKET-3M | U1 |
| 1 | NMH0512SC | NMH0512SC | U2 |
| 1 | J0026D21E_J0-A/B/F | J0-A%2fB%2fF | U3 |
| 1 | 25MHz | Crystal_HC49-U_Vertical | Y1 |
| 1 | HEADER_5x2 | IDC_Header_Straight_10pins | J1 |
| 1 | HEADER_4 | Pin_Header_Straight_1x04 | J2 |
| 2 | HEADER_2 | Pin_Header_Straight_1x02 | J4, J5 |
| 1 | HEADER_3 | Pin_Header_Straight_1x03 | J6 |
| 1 | USB_B | USB_B | P1 |
| 1 | INDUCTOR | R5 | L1 |
| 10 | 100nF | cnp_3mm_disc | C1, C4, C5, C6, C8, C9, C10, C11 +2 |
| 2 | 18pF | cnp_3mm_disc | C2, C3 |
| 1 | 10uF Tantal | cnp_3mm_disc | C7 |
| 2 | 47uF | C_Radial_D5_L6_P2.5 | C12, C16 |
| 1 | 100uF | C_Radial_D5_L6_P2.5 | C13 |
| 1 | 2.32K | Resistor_Horizontal_RM7mm | R1 |
| 4 | 49.9 | Resistor_Horizontal_RM7mm | R2, R3, R4, R5 |
| 2 | 220 | Resistor_Horizontal_RM7mm | R6, R7 |
Seqboard design files
The KiCad project lives in the westlicht/midibox-seq-v4 repository on GitHub; these links point at the commit this page was built from.
Seqboard: common questions
How big is the Seqboard PCB?
The Seqboard measures 147.3 × 38.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Seqboard?
35 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the Seqboard design files?
From the westlicht/midibox-seq-v4 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Seqboard design in my own project?
The repository has no license, so all rights stay with westlicht. Use it as a reference, and ask the author before reusing the design.
