Water Organ

1 year ago 635
  • Description
  • Documents
  • BOM
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Description

The Water Organ is a capacitive Midi Controller. There are 24 inputs to which you can connect cups of water or other capacitive stuff like fruits or vegetables and touch them with your hands in order to make music.

The circuit uses two MPR121 breakout boards in order to make individual capacitive buttons. The button states will be sent over a Midi output. A Midi input can be used to control a neopixel strip, which also can be hooked up to the main connector. The brain is an Atmega328p.

Documents

WaterOrganController

WaterOrganController

BOM

ID Name Designator Footprint Quantity Manufacturer Part Manufacturer Supplier Supplier Part Price LCSC Assembly Mounted LCSC
1 BSS138 Q1,Q2 SOT-23-3 2 BSS138 CJ LCSC C78284
2 LD1117DT33CTR U2 TO-252 1 LD1117DT33CTR STMicroelectronics LCSC C36395
3 MIDI_OUT U4 DIN_5_FEMALE_SUPPORT 1
4 MIDI_IN U5 DIN_5_FEMALE_SUPPORT 1
5 USB USB USB-B-2 1 2N2222 ValuePro LCSC C26349
6 ATMEGA328P-PU U8 DIP-28_300MIL 1 ATMEGA328P-PU ATMEL LCSC C33901
7 22pF C4,C5 0805 2 0805CG220J500NT FH LCSC C38143
8 1N4148W D1 SOD-123 1 1N4148W STARSEA LCSC C89641
9 4N28-M U1 DIP-6 1 4N28-M FAIRCHILD LCSC C4067
10 3.3KΩ(332) R5 0402 1 CR0402JF0332G LIZ LCSC C100640
11 100KΩ(104) R9 0603 1 CR0603JA0104G LIZ LCSC C101255
12 220Ω(221) R6,R7,R8 0603 3 CR0603JA0221G LIZ LCSC C101303
13 10KΩ(103) R1,R2,R3,R4,R10 0402 5 CR0402JF0103G LIZ LCSC C100572
14 1000uF C3 CAP-D8.0XF3.5 1 1000uF 16Vblack gold 8*20 ValuePro LCSC C43829
15 10uF C2 CAP-D5.0XF2.0 1 10uF 25V RHOS ValuePro LCSC C19576
16 100nF C6 1210 1 1210B104K500NT FH LCSC C76567
17 16MHZ X1 OSC-49OSC-YSX-1 1 X49SM16MSD2SC YXC LCSC C12676
18 2.54mm 1x40TW H1 SIP-40TW-2.54MM 1 2.54mm 1x40TW ReliaPro LCSC C7251
19 3x4x2 RESET KEY-3.0*4.0 1 3x4x2 ReliaPro LCSC C26638
20 MPR121 U3,U6 MPR121 2 MPR121

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