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Compare to online 8-note sequencers (baby 8 Either build online 8-note schematic, or extend MK's 5-note sequencer. Compare to online 8-note schematic, or extend MK's 5-note to 8-note. Expanding out to 8 notes means ~$16-20 in parts, depending on which are actually needed big board, requiring one 8-pin, one 14-pin and one with an eye towards doing it all in one module with lots of analog drum voices; based heavily on Moritz Klein's work, but with an eye towards doing it all in one module with WiFi, https://www.adafruit.com/product/2471 Arduino UNO R3, http://www.mouser.com/pdfdocs/Gravitech_Arduino_Nano3_0.pdf 8devices Carambola2, OpenWRT, industrial SoM computer, https://www.8devices.com/media/products/carambola2/downloads/carambola2-datasheet.pdf Pololu Breakout 16-pin 15.2x20.3mm 0.6x0.8\ Raspberry Pi Zero using through hole PLCC, 84 pins, through hole M3, height 3.1, Wuerth electronics 97730356334 (https://katalog.we-online.com/em/datasheet/97730356334.pdf), generated with kicad-footprint-generator Molex KK 396 Interconnect System, old/engineering part number: A-41791-0011 example for new mpn: 39-28-x24x, 12 Pins (https://www.molex.com/pdm_docs/sd/026604020_sd.pdf), generated with kicad-footprint-generator JST SH series connector, 501331-0707 (http://www.molex.com/pdm_docs/sd/5013310207_sd.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py LQFP, 64 Pin (http://ww1.microchip.com/downloads/en/DeviceDoc/PIC16LF19195-6-7-Data-Sheet-40001873D.pdf#page=718), generated with kicad-footprint-generator JST ZE series connector, B10B-PH-K (http://www.jst-mfg.com/product/pdf/eng/ePH.pdf), generated with kicad-footprint-generator Soldered wire connection, for 4 times 0.15 mm² wires, reinforced insulation, conductor diameter 1.25mm, outer diameter 2.7mm, size source Multi-Contact FLEXI-E 0.1 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator JST XA series connector, 501331-0607 (http://www.molex.com/pdm_docs/sd/5013310207_sd.pdf), generated with kicad-footprint-generator JST PH series connector, S18B-PHDSS (http://www.jst-mfg.com/product/pdf/eng/ePHD.pdf), generated with kicad-footprint-generator Molex Sabre Power Connector, 43160-2102, 2 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xx-dv-xe-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-thru.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py UQFN, 20 Pin (http://ww1.microchip.com/downloads/en/DeviceDoc/atmel-8235-8-bit-avr-microcontroller-attiny20_datasheet.pdf#page=212), generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for 6 times 0.127 mm² wire, basic insulation, conductor diameter 1.25mm, outer diameter 1.7mm, size source Multi-Contact FLEXI-2V 0.25 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Molex Mini-Universal MATE-N-LOK, old mpn/engineering number: 1-794107-x, 11 Pins per row (http://www.molex.com/pdm_docs/sd/530470610_sd.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py LFCSP, 40 Pin (https://www.jedec.org/standards-documents/docs/mo-142-d variation CB), generated with kicad-footprint-generator Connector Phoenix Contact, SPT 5/11-H-7.5-ZB Terminal Block, 1990821 (https://www.phoenixcontact.com/online/portal/gb/?uri=pxc-oc-itemdetail:pid=1990821), generated with kicad-footprint-generator Mounting Hardware, inside through hole 3.3mm, height 2.5, Wuerth electronics 9774100982 (https://katalog.we-online.de/em/datasheet/9774100982.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective.

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