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16x4blm_pcb [2014/02/12 12:01] ilmenator [Frontpanel] added link to Formulor |
16x4blm_pcb [2022/05/11 06:55] ilmenator [Where to buy?] |
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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 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_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 ([[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 May 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 | | |