{"id":16991895,"url":"https://github.com/polykit/polykit-x-controlboard","last_synced_at":"2026-01-04T19:03:38.836Z","repository":{"id":221385229,"uuid":"754112468","full_name":"polykit/polykit-x-controlboard","owner":"polykit","description":"Control board schematics and PCB for my polyphonic synthesizer","archived":false,"fork":false,"pushed_at":"2024-02-07T17:14:47.000Z","size":1617,"stargazers_count":3,"open_issues_count":0,"forks_count":0,"subscribers_count":3,"default_branch":"main","last_synced_at":"2025-03-16T17:18:44.779Z","etag":null,"topics":["kicad","pcb","polyphonic","polysynth","schematics","synthesizer"],"latest_commit_sha":null,"homepage":"","language":null,"has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/polykit.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2024-02-07T12:29:46.000Z","updated_at":"2024-08-09T07:34:52.000Z","dependencies_parsed_at":null,"dependency_job_id":"972b8464-b752-4a93-9d87-d27587ca0d0e","html_url":"https://github.com/polykit/polykit-x-controlboard","commit_stats":null,"previous_names":["polykit/polykit-x-controlboard"],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/polykit%2Fpolykit-x-controlboard","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/polykit%2Fpolykit-x-controlboard/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/polykit%2Fpolykit-x-controlboard/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/polykit%2Fpolykit-x-controlboard/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/polykit","download_url":"https://codeload.github.com/polykit/polykit-x-controlboard/tar.gz/refs/heads/main","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":244902926,"owners_count":20529115,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["kicad","pcb","polyphonic","polysynth","schematics","synthesizer"],"created_at":"2024-10-14T03:27:41.879Z","updated_at":"2026-01-04T19:03:33.801Z","avatar_url":"https://github.com/polykit.png","language":null,"funding_links":[],"categories":[],"sub_categories":[],"readme":"# Polykit X8 Controlboard\n\n_THIS IS NOT A FINISHED PRODUCT IN ANY WAY AND STILL UNDER HEAVY DEVELOPMENT - USE AT YOUR OWN RISK!_\n\nThis repository contains Kicad schematics and PCB layout of a control board for a polyphonic synthesizer.\n\nThere is a video playlist on the design process https://makertube.net/w/p/3N2fRjXwT2SfAUv2VkMy3e\n\n![Polykit X8 Main Board Rendering](polykit-x-controlboard-rendering.jpg)\n\nRelated repositories:\n\n* Voice Card: https://github.com/polykit/polykit-x-voice-card\n* Main Board: https://github.com/polykit/polykit-x-mainboard\n* Input Board: _soon_\n* Software: _soon_\n* Power Supply: https://github.com/polykit/eurorack-psu\n\n## BOM\n|Reference|Value         |Footprint                                                      |Comment                               |Qty|\n|---------|--------------|---------------------------------------------------------------|--------------------------------------|---|\n|C1, C2   |100n          |Capacitor_SMD:C_1206_3216Metric                                |                                      |2  |\n|D1-D4    |1N4148WS      |Diode_SMD:D_SOD-323                                            |                                      |4  |\n|J1       |MCU_BOARD     |Connector_PinHeader_2.54mm:PinHeader_1x16_P2.54mm_Vertical     |optional, when used as MIDI controller|1  |\n|J2       |X8_I2C_POWER  |Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical                 |                                      |1  |\n|J3       |X8_EXT_DIGITAL|Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical                 |                                      |1  |\n|J4       |DISPLAY       |Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical     |                                      |1  |\n|R1-R34   |10k           |Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder       |                                      |34 |\n|SW1-SW6  |SW_Push       |Button_Switch_THT:SW_PUSH_6mm_H13mm                            |                                      |6  |\n|SW7-SW22 |RotaryEncoder |Rotary_Encoder:RotaryEncoder_Bourns_Vertical_PEC12R-3xxxF-Nxxxx|without switch                        |16 |\n|U1, U2   |MCP23017_SO   |Package_SO:SOIC-28W_7.5x17.9mm_P1.27mm                         |                                      |2  |\n\n## References\n\nhttps://www.ti.com/lit/an/slva704/slva704.pdf\n\nhttps://github.com/horfee/kicad-packages3D/tree/master/Rotary_Encoder.3dshapes\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpolykit%2Fpolykit-x-controlboard","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fpolykit%2Fpolykit-x-controlboard","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpolykit%2Fpolykit-x-controlboard/lists"}