Parts List

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This list of hardware parts focuses on Mouser part numbers, as the most commonly used online electronics store. You can of course get the manufacturer's part number from there and buy elsewhere! Alternatives are included where possible in case there are stock or availability issues for the main parts.

[edit] Mainboard V0.7 Parts

Part Qty Description Mouser Part No Possible Alternatives
Circuit Board
PCB 1 Mainboard V0.7 microDRUM Store
Arduino
Uno 1 Will need Mainboard set to 5V version 782-A000066 EBay
Due Will need Mainboard set to 3.3V version 782-A000062 EBay
Resistors
R1-R6 6 1 MOhm, 1%, 0.25W 271-1.0M-RC (Xicon) 660-MF1/4DCT52A1004F (Koa Speer), 71-CMF551M0000FKR6 (Vishay Dale)
R7, R9, R11-R13 5 220 Ohm, 1%, 0.25W 271-220-RC (Xicon) 660-MF1/4DCT52R2200F (Koa Speer), 71-CMF55220R00FHEK (Vishay Dale)
R8oC1 1 120 Ohm, 1%, 0.25W (or capacitor, see below) 271-120-RC (Xicon) 660-MF1/4DCT52R1200F (Koa Speer), 71-CMF55120R00FKR6 (Vishay Dale)
R10 1 3.3 KOhm, 1%, 0.25W 271-3.3K-RC (Xicon) 660-MF1/4DCT52R3301F (Koa Speer), 71-CMF553.3K1%T1 (Vishay Dale)
Capacitors
R8oC1 1 10 uF (or resistor, see above. C1 best option if using Uno) 667-ECE-A1HKA100B (Panasonic) 647-UST1H100MDD1TE (Nichicon)
Switches
S1-S2 2 SPDT (See build details for purpose of these switches) 633-MS12AFG01 (NKK)
S1-S2 (Alt) 2* 1 x 3 header (Could just use wire if will never change) See ALT_HEADER 649-69190-403 (FCI), 517-929834-02-03 (3M), 798-A23PA254DSA71 (Hirose)
2 1 x 2 shorting jumper (Could just use wire if will never change) 649-63429-202LF (FCI) 517-951-00 (3M), 855-M7582-46 (Harwin)
Multiplexers
U1-U6 6 SN74HC4851 (each 1 = 8 ports) microDRUM store 595-SN74HC4851N (Texas Instruments)
Diodes
D1 1 1N4148 78-1N4148 (Vishay) 512-1N4148TR (Fairchild), 771-1N4148,133 (NXP)
ICs
U7 1 6N138 782-6N138 (Vishay) 512-6N139M (Fairchild)
U8 1 74LS04 (Midi thru only) 595-SN74LS04N (Texas Instruments)
Sockets
U1skt-U6skt 6 16 pin DIP (2x8) 649-DILB16P-223TLF (FCI) 517-4816-3004-CP (3M), 571-1825093-4 (TE Connectivity)
U7skt 1 8 pin DIP (2x4) 571-1825373-2 (TE Connectivity) 649-DILB8P223TLF (FCI), 517-4808-3004-CP (3M)
U8skt 1 14 pin DIP (2x7) (Midi thru only) 649-DILB14P-223TLF (FCI) 517-4814-3000-CP (3M), 571-1825093-3 (TE Connectivity)
Connectors
CONN1-CONN6 6 2 x 5 header 649-67997-410HLF (FCI) 653-XG8W-1041 (Omron), 855-M20-9760546 (Harwin)
6 2 X 5 socket 649-65239-005LF (FCI) 653-XG4M-1030 (Omron), 855-M20-1070500 (Harwin)
JP1-JP3, JP5, JP6 5* 1 x 3 header (JP3 - LCD) See ALT_HEADER 649-69190-403 (FCI), 517-929834-02-03 (3M), 798-A23PA254DSA71 (Hirose)
5 1 x 3 socket (JP3 – LCD) 649-65240-003LF (FCI) 571-770602-3 (TE), 538-10-11-2034 (Molex)
JP4 1* 1 x 6 header (LCD) See ALT_HEADER 649-68000-406HLF (FCI), 855-M20-9770646 (Harwin), 517-929834-02-06-RK (3M)
1 1 x 6 socket (LCD) 649-65240-006LF (FCI) 855-M20-1060600 (Harwin), 538-10-11-2063 (Molex)
JX 1* 1 x 2 header (V5 version only - could replace with wire if not going to change) See ALT_HEADER 517-929800-01-02 (3M), 649-68000-402 (FCI), 855-M20-9730246 (Harwin)
1 1 x 2 shorting jumper (V5 version only) 649-63429-202LF (FCI) 517-951-00 (3M), 855-M7582-46 (Harwin)
MIDI1-MIDI2 2 5 pin DIN socket 568-NYS325 (REAN) 523-T3359150 (Amphenol)
ARDUINO_CONN 2* 1 x 8 header See ALT_HEADER 517-929834-04-01 (3M), 653-XG8V-0831 (Omron), 855-M20-9730846 (Harwin)
2* 1 x 6 header See ALT_HEADER 649-68000-406HLF (FCI), 855-M20-9770646 (Harwin), 517-929834-02-06-RK (3M)
ALT_HEADER 2 1 x 32 header - split (will cover all headers with qty marked with *) 517-929834-02-36-RK (3M)
Wire Ribbon cable, rainbow version optional… Ebay is best option as Mouser only does long lengths
Contacts To fit 22-30 AWG wire (assuming that matches ribbon wire above) 649-76347-401LF (FCI) 538-08-50-0114 (Molex) - Need to make sure compatible with sockets chosen

There are a number of optional parts in the above list, depending on the build configuration you require. The following table shows the options outlined on the Motherboard V0.7 board:

Part V5 - Thru V3.3 - Thru V5 - No Thru V3.3 - No Thru
S2 Left Right Left Right
JX Close Open Close Open
R11 Yes Yes No No
R12 Yes Yes No No
R13 No Yes No Yes
U8 Yes Yes No Yes

NB: - S1 is used to determine if the Arduino resets automatically when it is connected to the computer via USB. If you do not wish it to reset every time you connect it set this to closed.

[edit] Socket Board V0.4 Parts

Part Qty Description Mouser Part No Possible Alternatives
Circuit Board
PCB 1 Socket Board V0.4 microDRUM Store
Jacks
U1-U4 4 Mono sockets for single piezo trigger, stereo for two 550-20301 (Stereo) 568-NMJ4HHD2 (Mono), 550-20384 (Stereo)
Resistors
R1-R4 4 100 Ohm - 1 MOhm (Depends on HHC pedal resistor), 1%, 0.25W Xicon 271 range
Switches
S1-S4 4 SPDT ( To chose between pad or HHC) 633-MS12AFG01 (NKK)
S1-S4 (Alt) 4* 1 x 3 header (Could just use wire if will never change) See ALT_HEADER 649-69190-403 (FCI), 517-929834-02-03 (3M), 798-A23PA254DSA71 (Hirose)
4 1 x 2 shorting jumper (Could just use wire if will never change) 649-63429-202LF (FCI) 517-951-00 (3M), 855-M7582-46 (Harwin)
ALT_HEADER 1 1 x 32 header - split (will cover all headers with qty marked with *) 517-929834-02-36-RK (3M)
Connectors
CONN1 1 2 x 5 header 649-67997-410HLF (FCI) 653-XG8W-1041 (Omron), 855-M20-9760546 (Harwin)
1 2 x 5 socket 649-65239-005LF (FCI) 653-XG4M-1030 (Omron), 855-M20-1070500 (Harwin)
Contacts To fit 22-30 AWG wire (assuming that matches ribbon wire above) 649-76347-401LF (FCI) 538-08-50-0114 (Molex) - Need to make sure compatible with sockets chosen

NB: - These quantities are for a single board, giving you 4 sockets.

[edit] LCD V0.1 Parts

There is currently no PCB available for this module, use stripboard or perfboard to build this

Part Qty Description Mouser Part No Possible Alternatives
Circuit Board
PCB 1 Stripboard 854-ST2
Resistors
R1 10 KOhm variable resistor 72-T93XA-10K
R2-R4 3 10 KOhm, 1%, 0.25W 271-10K-RC 660-MF1/4DCT52R1002F (Koa Speer), CMF5510K000FKEK (Vishay Dale)
Switches
S1-S3 3 SPST, Momentary 693-1301.9302
Screen
1 16 x 2 screen NMTC-S16205DRGHS EBay is a good source, with a wide range of colours available
Connectors
JP3 1* 1 x 3 header See ALT_HEADER 649-69190-403 (FCI), 517-929834-02-03 (3M), 798-A23PA254DSA71 (Hirose)
1 1 x 3 socket 649-65240-003LF (FCI) 571-770602-3 (TE), 538-10-11-2034 (Molex)
JP4 1* 1 x 6 header See ALT_HEADER 649-68000-406HLF (FCI), 855-M20-9770646 (Harwin), 517-929834-02-06-RK (3M)
1 1 x 6 socket 649-65240-006LF (FCI) 855-M20-1060600 (Harwin), 538-10-11-2063 (Molex)
ALT_HEADER 1 1 x 32 header - split (will cover all headers with qty marked with *) 517-929834-02-36-RK (3M)
Contacts To fit 22-30 AWG wire 649-76347-401LF (FCI) 538-08-50-0114 (Molex) - Need to make sure compatible with sockets chosen
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