OM-GOD
About the OM-GOD PCB
OM-GOD is an open source STM32 PCB design by Sojoooo, published on GitHub. It is a 4-layer board measuring 403.7 × 202.9 mm, with 475 components from 116 distinct parts.
Its main chip is the STM32H723ZGT6, from the STM32 family. Other key parts include the PCM5122PW, NE5532DR, TS5A23159RSER, TPA6120A2DWP and TPA3116D2DAD_C2865736. By type, the board carries 188 capacitors, 105 resistors, 60 switches, 55 diodes, 34 ICs and 12 inductors.
It belongs with the audio and power & battery designs in this gallery.
From the project
Ominichord [Gate of Divinity]. Mash-up of all the prevoius omnichords and more.
- STM32H7 microcontroller for high-performance processing - Texas Instruments DACs and amplifiers for professional audio quality - MIDI connectivity for external device integration - USB-C programming and power delivery - Battery-powered portable design - Tactile switches for tactile feedback - 48-button chord matrix (4 rows × 12 buttons) - Rotary encoders for parameter control - LED display for status and settings
Main components on the OM-GOD
OM-GOD bill of materials (BOM)
475 components, 116 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | PCM5122PW | TSSOP-28_4.4x9.7mm_P0.65mm | U1, U2, U3 |
| 5 | NE5532DR | SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL | U4, U5, U6, U8, U11 |
| 5 | ~ | SW-TH_6P-L7.0-W7.0-P2.00_7-7-ZS | U9, U10, U12, U13, U14 |
| 1 | TS5A23159RSER | UQFN-10_L2.0-W1.5-P0.50-BL-EP | U15 |
| 1 | TPA6120A2DWP | HSOP-20_L12.8-W7.5-P1.27-LS10.3-BL-EP3.3 | U17 |
| 1 | TPA3116D2DAD_C2865736 | HTSSOP-32_L11.0-W6.1-P0.65-LS8.1-BL | U19 |
| 1 | CY8CMBR3116-LQXIT | QFN-24_L4.0-W4.0-P0.50-BL-EP2.6 | U21 |
| 1 | FPC-05F-6PH20 | FPC-SMD_6P-P0.50_XUNPU_FPC-05F-6PH20 | U22 |
| 1 | FPC-05F-6PH20 | FPC-SMD_6P-P0.50_XUNPU_FPC-05F-6PH20 | U24 |
| 1 | BQ24610 | VQFN-24-1EP_4x4mm_P0.5mm_EP2.45x2.45mm | U25 |
| 1 | TPS54202DDC | SOT-23-6 | U26 |
| 1 | W29N02KVSIAF | TSOP-48_L12.0-W18.4-P0.50-LS20.0-TL | U27 |
| 1 | USBLC6-2P6 | SOT-666 | U28 |
| 1 | TUSB422IYFPR | DSBGA-9_L1.4-W1.3-R3-C3-P0.40-BL | U29 |
| 2 | SIS412DN-T1-GE3-ES | PDFN-8_L3.1-W3.1-P0.65-LS3.4-BL | U30, U31 |
| 1 | ~ | CRYSTAL-SMD_4P-L3.2-W2.5-BL_SIT8008BI | U32 |
| 1 | HS20HS072RX | OLED-SMD_HS20HS072RX | U33 |
| 6 | LMR33630ADDAR | ESOP-8_L4.9-W3.9-P1.27-LS6.0-TL-EP | U34, U35, U36, U37, U38, U39 |
| 3 | SI7617DN Si7617DN | Vishay_PowerPAK_1212-8_Single | Q1, Q2, Q3 |
| 1 | 32.768KHz | FC-135R_L3.2-W1.5 | Y1 |
Show 96 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | DIN-504B-M10 | CONN-TH_DIN-504B-M10 | CN1, CN2 |
| 3 | PJ-625G | AUDIO-TH_PJ-625G | J1, J2, J5 |
| 1 | Conn_01x13_Pin | PinHeader_1x13_P2.54mm_Vertical | J3 |
| 1 | Conn_01x03_Pin | PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | Conn_01x08_Pin | CONN-TH_B8PS-VH-LF-SN | J6 |
| 1 | Conn_01x02_Socket | CONN-TH_2P-P5.00_WJ500V-5.08-2P | J9 |
| 1 | CONN_01X08_PIN Conn_01x08_Pin | CONN-TH_B8PS-VH-LF-SN | J10 |
| 1 | CONN_01X02_SOCKET Conn_01x02_Socket | CONN-TH_2P-P5.00_WJ500V-5.08-2P | J11 |
| 1 | PJ-393_C2837065 | AUDIO-SMD_PJ-393 | AUDIO1 |
| 1 | TF PUSH | TF-SMD_TF-PUSH | Card1 |
| 1 | 5034801200 | FPC-SMD_5034801200 | FPC1 |
| 1 | H11L1 | DIP-6_W7.62mm_LongPads | OC1 |
| 51 | TS-1003ST-26 | SW-SMD_4P-L12.0-W12.0-P5.00-LS15.4 | SW1, SW2, SW3, SW4, SW6, SW7, SW8, SW9 +43 |
| 6 | RotaryEncoder | SW-TH_EC12EXXXX | SW5, SW10, SW19, SW20, SW33, SW34 |
| 2 | SW_Push | SW_SPST_CK_RS282G05A3 | SW58, SW60 |
| 1 | RotaryEncoder_Switch | SW-TH_EC11E15244G1 | SW61 |
| 1 | C2765186 TYPE-C 16PIN 2MD(073) | USB-C-SMD_TYPE-C-6PIN-2MD-073 | USB1 |
| 1 | STM32H723ZGT6 | LQFP-144_L20.0-W20.0-P0.50-LS22.0-BL | VQ1 |
| 48 | 1N4148WS_C917117 | SOD-323_L1.8-W1.3-LS2.5-RD | D1, D2, D3, D4, D5, D6, D7, D8 +40 |
| 1 | LED | LED0603-RD | D49 |
| 1 | 1N4148WT | D_SOD-523 | D50 |
| 1 | PESD15VL1BA | D_SOD-323_TVS | D51 |
| 3 | LED | LED_0603_1608Metric | D52, D53, D54 |
| 1 | BAT54 | SOT-23 | D55 |
| 1 | 100 | L_0603_1608Metric | FB1 |
| 2 | 10uH | IND-SMD_L11.0-W10.5_SL1050-330M | L5, L6 |
| 1 | 27UH 27uH | IND-SMD_L4.8-W3.4 | L7 |
| 1 | EXC14CE900U | FILTER-SMD_4P-L0.9-W0.7-P0.50-BL | L8 |
| 1 | 6.8UH 6.8uH | L_6.3x6.3_H3 | L9 |
| 1 | 8UH 8uH | L1206 | L10 |
| 2 | 6.8UH 6.8uH | IND-SMD_L3.2-W2.5_L3225 | L11, L15 |
| 3 | 15UH 15uH | IND-SMD_L12.3-W12.3 | L12, L13, L14 |
| 15 | 2.2uF | C_0402_1005Metric | C1, C2, C3, C7, C12, C17, C34, C35 +7 |
| 31 | 0.1uF | C_0402_1005Metric | C4, C5, C6, C8, C9, C10, C11, C13 +23 |
| 15 | 10uF | CAP-SMD_BD4.0-L4.3-W4.3-FD | C19, C20, C21, C22, C23, C24, C25, C26 +7 |
| 1 | 0.1uF | C_0603_1608Metric | C41 |
| 1 | 100uF | C_0402_1005Metric | C58 |
| 6 | 1uF | C_0402_1005Metric | C67, C72, C73, C82, C165, C191 |
| 3 | 1nF | C_0402_1005Metric | C77, C86, C88 |
| 4 | 220nF | C_0402_1005Metric | C93, C94, C95, C96 |
| 15 | 100nF | C_0402_1005Metric | C98, C100, C140, C144, C146, C151, C155, C159 +7 |
| 2 | 220uF | CP_Radial_D8.0mm_P3.50mm | C102, C104 |
| 4 | 1uF | C_0603_1608Metric | C109, C110, C115, C116 |
| 2 | 10nF | C_0603_1608Metric | C122, C123 |
| 1 | 2.2UF 2.2uF | CP_Radial_D8.0mm_P2.50mm | C125 |
| 19 | 0.1UF 0.1uF | C_0402_1005Metric | C126, C127, C130, C133, C138, C139, C141, C147 +11 |
| 3 | 1UF 1uF | CP_Radial_D5.0mm_P2.00mm | C128, C136, C148 |
| 3 | 10UF 10uF | C_0402_1005Metric | C129, C132, C137 |
| 1 | 0.1UF 0.1uF | CP_Radial_D5.0mm_P2.00mm | C131 |
| 2 | 220PF 220pF | C_0402_1005Metric | C142, C149 |
| 4 | 10UF 10uF | CP_Radial_D8.0mm_P3.50mm | C143, C160, C162, C167 |
| 1 | 100NF 100nF | C_0402_1005Metric | C145 |
| 2 | 22UF 22uF | C_0402_1005Metric | C154, C157 |
| 2 | 5.1pF | C_0402_1005Metric | C168, C169 |
| 2 | 5.6pF | C_0402_1005Metric | C170, C171 |
| 1 | 22PF 22pF | C_0603_1608Metric | C173 |
| 6 | 10UF 10uF | C_0603_1608Metric | C176, C177, C179, C180, C181, C184 |
| 3 | 220NF 220nF | C_0603_1608Metric | C182, C183, C192 |
| 3 | 220NF 220nF | C_0402_1005Metric | C185, C186, C187 |
| 6 | 1UF 1uF | C_0402_1005Metric | C189, C190, C193, C194, C195, C197 |
| 3 | 47PF 47pF | C_0402_1005Metric | C204, C205, C210 |
| 3 | 47PF 47pF | C_0603_1608Metric | C207, C208, C209 |
| 24 | 22UF 22uF | C_0603_1608Metric | C211, C212, C213, C214, C215, C216, C217, C218 +16 |
| 6 | 470K | R_0402_1005Metric | R1, R2, R3, R4, R5, R6 |
| 19 | 10k | R_0402_1005Metric | R7, R8, R16, R17, R22, R23, R29, R52 +11 |
| 9 | 6K | R_0402_1005Metric | R9, R10, R11, R12, R13, R14, R19, R20 +1 |
| 1 | 5K | R_0402_1005Metric | R18 |
| 1 | 33 | R_0402_1005Metric | R26 |
| 1 | 220 | R_0402_1005Metric | R27 |
| 2 | 10 | R_0402_1005Metric | R28, R84 |
| 12 | 1K | R_0402_1005Metric | R31, R32, R36, R37, R38, R39, R54, R77 +4 |
| 1 | 470 | R_0402_1005Metric | R35 |
| 1 | 47k | R_0402_1005Metric | R42 |
| 1 | 75k | R_0402_1005Metric | R43 |
| 2 | 100k | R_0402_1005Metric | R46, R49 |
| 2 | 3.3 | R_0402_1005Metric | R68, R69 |
| 1 | 2 | R_0402_1005Metric | R73 |
| 13 | 100K | R_0402_1005Metric | R74, R75, R78, R80, R89, R110, R112, R121 +5 |
| 1 | 32.4K | R_0402_1005Metric | R76 |
| 4 | 10K | R_0402_1005Metric | R79, R92, R93, R94 |
| 1 | 22.1K | R_0402_1005Metric | R81 |
| 2 | 0.01 | R_0402_1005Metric | R82, R105 |
| 1 | 200K | R_0402_1005Metric | R85 |
| 2 | 1.5K | R_0402_1005Metric | R86, R104 |
| 1 | 9.31K | R_0402_1005Metric | R88 |
| 1 | NTCG163JF103FT1S | R0603 | R90 |
| 1 | 430K | R_0402_1005Metric | R91 |
| 8 | 22 | R_0402_1005Metric | R96, R97, R98, R99, R100, R101, R102, R103 |
| 1 | 49.9 | R_0402_1005Metric | R106 |
| 1 | 50K 50k | R_0402_1005Metric | R107 |
| 1 | 2.61K 2.61k | R_0402_1005Metric | R108 |
| 1 | 500K | R_0402_1005Metric | R111 |
| 1 | 24.9K | R_0402_1005Metric | R122 |
| 2 | 43.2K | R_0402_1005Metric | R124, R132 |
| 3 | 9.09K | R_0402_1005Metric | R126, R128, R130 |
| 1 | 4.7k | R_0402_1005Metric | R134 |
OM-GOD design files
The KiCad project lives in the Sojoooo/OM-GOD repository on GitHub; these links point at the commit this page was built from.
OM-GOD: common questions
What microcontroller does the OM-GOD use?
The OM-GOD is built around the STM32H723ZGT6, from the STM32 family.
How big is the OM-GOD PCB?
The OM-GOD measures 403.7 × 202.9 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the OM-GOD?
475 components, from 116 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the OM-GOD design files?
From the Sojoooo/OM-GOD repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the OM-GOD design in my own project?
The repository has no license, so all rights stay with Sojoooo. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the OM-GOD without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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