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16x4blm_pcb [2013/02/28 14:47]
ilmenator [Overview]
16x4blm_pcb [2022/06/17 09:56] (current)
ilmenator [Where to buy?]
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 ===== Overview ===== ===== Overview =====
-The board holds all necessary components including surface mount shift registers (DOUT and DIN) on the backside and connects via a single 10pin cable to J2 on Wilba'​s control surface board. Additional modules (BPM and TPC displays) can be connected to a second 10pin connector that loops through all serial I/O signals from J8/J9 of the Core32/​LPC17 board. The board features duo LEDs and the very nice {{:​home:​users:​ilmenator:​64250101_00_k.pdf|Marquardt 6425}} series of buttons with the {{:​home:​users:​ilmenator:​826000011_00_k.pdf|16mm square caps}}.+The board holds all necessary components including surface mount shift registers (DOUT and DIN) on the backside and connects via a single 10pin cable to J2 on Wilba'​s control surface board. Additional modules (BPM and TPD displays) can be connected to a second 10pin connector that loops through all serial I/O signals from J8/J9 of the Core32/​LPC17 board. The board features duo LEDs and the very nice {{:​home:​users:​ilmenator:​64250101_00_k.pdf|Marquardt 6425}} series of buttons with the {{:​home:​users:​ilmenator:​826000011_00_k.pdf|16mm square caps}}.
  
-The buttons do not align with Wilba'​s MB-SEQ frontpanel design. The reason for this is simple: In my front panel there is a TPD (Track Position Display), a step display, and a [[http://​ucapps.de/​midibox_seq/​mbseq_v4_bpm_digits.pdf|BPM display]] to the left of the button / Duo-LED matrix. A second reason is that the protoboard manufacturer ([[http://​www.goldphoenixpcb.com/​|Gold Phoenix PCB]]) ​I used has a size limit that I had to respect.+The buttons do not align with Wilba'​s MB-SEQ frontpanel design. The reason for this is simple: In my front panel there is a [[TPD_PCB|TPD]] (Track Position Display), a step display, and a [[http://​ucapps.de/​midibox_seq/​mbseq_v4_bpm_digits.pdf|BPM display]] to the left of the button / Duo-LED matrix. A second reason is that the protoboard manufacturer ​I used ([[http://​www.goldphoenixpcb.com/​|Gold Phoenix PCB]]) has a size limit that I had to respect.
  
 ===== Schematic ===== ===== Schematic =====
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 The total size of the PCB is 335.15mm x 97.92mm. ​ The total size of the PCB is 335.15mm x 97.92mm. ​
 +
 +===== PCB Layout v2.0 =====
 +Meanwhile, I have created a version 2 of the board, which basically has all the features of the original one, plus it can hold three different types of switches:
 +
 +- the Marquardt 6425 series (my favourite switches)
 +
 +- ITT Schadow D6 series (TK's favourite switches)
 +
 +- E-Switch 612-TL1100 series (the ones that Wilba used on the SEQ v4 board).
 +
 +{{:​home:​users:​ilmenator:​blm16x4:​blm_16x4_v2.jpg?​600|}}
 +
 +{{:​home:​users:​ilmenator:​blm16x4:​blm_16x4_switches.jpg?​600|}}
 +
 +==== Where to buy? ====
 +If you are interested in building this, send a personal message (PM) to user //​ilmenator//​ over at the [[http://​midibox.org/​forums/​|MIDIbox forum]] (you have to register to be able to send PM). As of June 2022, I have PCBs available for 25€ each. I can also provide you with complete kits with Marquardt or D6 switches in black.
 ===== BOM ===== ===== BOM =====
  
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 | R1-R32 | 1/4W resistor | | 220 | 32 | | 1/4W 220 | | | R1-R32 | 1/4W resistor | | 220 | 32 | | 1/4W 220 | |
 | R33, R34 | 1/4W resistor | | 10k | 2 | | 1/4W 10K | | | R33, R34 | 1/4W resistor | | 10k | 2 | | 1/4W 10K | |
-| SW1-SW64 | push switch | Marquardt 6425.0101* | | 64 | 979-6425.0101 | | [[http://​www.soselectronic.de/?​str=371&​artnum=1325&​name=marquardt-6425-0101|1325]] | +| SW1-SW64 | push switch | Marquardt 6425.0101* | | 64 | 979-6425.0101 | TASTE 6425.0101 ​| [[http://​www.soselectronic.de/?​str=371&​artnum=1325&​name=marquardt-6425-0101|1325]] | 
-| | key cap | Marquardt 826.000.011 | 16x16mm | 64 | | | [[http://​www.soselectronic.de/?​str=371&​artnum=1484&​name=marquardt-826-000-011|1489]] | +| | key cap | Marquardt 826.000.011 | 16x16mm | 64 | |TASTE S 826 (red!) ​| [[http://​www.soselectronic.de/?​str=371&​artnum=1484&​name=marquardt-826-000-011|1489]] | 
-| U1-U6 | 74HC595 | SO16 | | 6 | | SMD HC 595 | |+| U1-U6 | 74HC595 | SO16 | | 6 | 863-MC74HC595ADG ​| SMD HC 595 | |
 | U7, U8 | 74HC165 | SO16 | | 2 | 863-MC74HC165ADR2G | | |  | U7, U8 | 74HC165 | SO16 | | 2 | 863-MC74HC165ADR2G | | |
 | J1, J2 | connector 2x5 | | | 2 | | WSL 10G | | | J1, J2 | connector 2x5 | | | 2 | | WSL 10G | |
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 ===== Frontpanel ===== ===== Frontpanel =====
  
-I have had my frontpanel laser cut by [[https://​www.ponoko.com/​|Ponoko]]. Here is the template:+I have had my frontpanel laser cut at [[http://​www.formulor.de/​|Formulor]],​ the German branch of [[https://​www.ponoko.com/​|Ponoko]]. Here is the template:
  
 {{:​home:​users:​ilmenator:​blm_16x4_frontpanel.png?​600|}} {{:​home:​users:​ilmenator:​blm_16x4_frontpanel.png?​600|}}
16x4blm_pcb.1362062874.txt.gz · Last modified: 2013/02/28 14:47 by ilmenator