Asynth2osc
About the Asynth2osc PCB
Asynth2osc is an open source STM32 PCB design by madees, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 69 × 106 mm, with 194 components from 75 distinct parts.
Its main chip is the STM32F723VETX, from the STM32 family. Other key parts include the LM1117S-3.3, LMR62421XMF, USBLC6-2SC6, LM1117S-5.0 and SI1869DH. By type, the board carries 81 resistors, 57 capacitors, 13 connectors, 12 ICs, 11 diodes and 8 switches.
It belongs with the audio designs in this gallery.
From the project
Analog synth to open sound control format project
Analog synth is coming back into hype among music artists. It has a strong culture of vintage, DIY, and customisation.
On the other hand, pro systems use digical control systems, such as DMX for lighting, or OpenSoundControl (OSC) for sound.
The idea for this project is to have a hardware to interface analog synth to advanced sound control systems.
This project is also designed to leverage the possibilities of open-source show control software Chataigne.
Main components on the Asynth2osc
Asynth2osc bill of materials (BOM)
194 components, 75 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LM1117S-3.3 HTC Korea | SOT-223 | U1 |
| 1 | LMR62421XMF TI | SOT-23-5 | U2 |
| 1 | USBLC6-2SC6 STMicroelectronics | SOT-23-6 | U3 |
| 1 | LM1117S-5.0 HTC Korea | SOT-223 | U4 |
| 1 | SI1869DH Si1869DH | SOT-363_SC-70-6 | U5 |
| 1 | STM32F723VETX STM32F723VETx STMicroelectronics | LQFP-100_14x14mm_P0.5mm | U6 |
| 1 | W25Q32JVSS Winbond | SOIC-8_5.23x5.23mm_P1.27mm | U7 |
| 2 | MCP6004 Microchip | TSSOP-14_4.4x5mm_P0.65mm | U8, U9 |
| 1 | LAN8742A Microchip | VQFN-24-1EP_4x4mm_P0.5mm_EP2.5x2.5mm_ThermalVias | U10 |
| 1 | USBLC6-2P6 STMicroelectronics | SOT-666 | U11 |
| 1 | H11L1 OnSemi | SMDIP-6_W9.53mm | U12 |
| 2 | Q_NPN_BEC JSMSEMI | SOT-23 | Q1, Q2 |
| 1 | 8MHz, 8pF NDK | Crystal_SMD_3225-2Pin_3.2x2.5mm | Y1 |
| 1 | 25MHZ,20PF,30PPM YXC | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y2 |
| 1 | USB_B_Micro ShouHan | USB_Micro-B_Shou-han-MicroXNJ | J1 |
| 1 | Conn_02x05_Odd_Even | PinHeader_2x05_P2.54mm_Vertical | J2 |
| 1 | Conn_02x07_Odd_Even | PinSocket_2x07_P2.54mm_Vertical_SMD | J4 |
| 1 | Conn_02x04_Odd_Even | PinHeader_2x04_P2.54mm_Vertical_SMD | J5 |
| 8 | AUDIOJACK3 AudioJack3 XKB | Jack_3.5mm_3legs_XKB_PJ-3411_Vertical | J6, J7, J8, J9, J10, J11, J13, J14 |
| 1 | RJ45_LED_SHIELDED RJ45_LED_Shielded HCTL | RJ45_HCTL_HC-RJ45-053-2 | J12 |
Show 55 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | OLED Connector 128x64 HRO Parts | HRO_FPC0.5B-WTG-24P_1x24-1MP_P0.5mm_Horizontal | DS1 |
| 1 | Fuse, 1.25A, trip 2.5A | R_0805_2012Metric | F1 |
| 1 | SW_Push Boomele | SW_SPST_B3S-1000 | SW1 |
| 1 | SW_MEC_5G_LED ROCPU | TPB01-X0XLXX_SW_MEC_5G | SW2 |
| 2 | SW_DIP_x02 | SW_DIP_SPSTx02_Slide_9.78x7.26mm_W8.61mm_P2.54mm | SW3, SW4 |
| 3 | SW_MEC_5G_LED ROCPU | TPB01-X0XLXX_SW_MEC_5G | SW5, SW7, SW8 |
| 1 | SW_MEC_5G_LED RotaryEncoder Alps | RotaryEncoder_Alps_EC12E_Vertical_H20mm | SW6 |
| 1 | Thermistor_NTC | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | TH1 |
| 1 | PT61017PEL | Transformer_Ethernet_Bourns_PT61017PEL | TR1 |
| 2 | ESD9B5.0ST5G OnSemi | D_SOD-923 | D1, D3 |
| 1 | 1N5819WS Guangdong | D_SOD-323 | D2 |
| 3 | SS24 Fosan | D_SMA | D4, D5, D6 |
| 2 | LED | LED_0402_1005Metric | D7, D8 |
| 1 | 1N4148WT LGE | D_SOD-523 | D15 |
| 2 | D_Schottky_Dual_SD103ASDM | SOT-23-6 | D22, D24 |
| 3 | BLM15PX330SN1D Murata | L_0402_1005Metric | FB1, FB2, FB3 |
| 1 | 8.2uH / 80mOhm Xiangru | L_XR_XRCD75-XRX_7x7.8 | L1 |
| 2 | 100nF | C_01005_0402Metric | C1, C4 |
| 3 | 100nF | C_0805_2012Metric | C2, C8, C9 |
| 4 | 10UF 10uF Roqang | CP_Elec_4x5.4 | C3, C5, C12, C45 |
| 1 | 680pF | C_0402_1005Metric | C6 |
| 1 | 47uF / 3.037mOhms | C_0805_2012Metric | C7 |
| 1 | 10nF | C_0402_1005Metric | C10 |
| 22 | 100nF | C_0402_1005Metric | C11, C13, C14, C15, C16, C17, C18, C19 +14 |
| 2 | 4.3pF | C_0402_1005Metric | C23, C24 |
| 2 | 2.2u X7R | C_0805_2012Metric | C27, C28 |
| 2 | 1uF | C_0805_2012Metric | C29, C41 |
| 1 | 10uF | C_0805_2012Metric | C31 |
| 1 | 18pF | C_0603_1608Metric | C32 |
| 2 | 100nF | C_0603_1608Metric | C33, C37 |
| 4 | 1nF | C_0603_1608Metric | C34, C35, C36, C50 |
| 2 | 30pF | C_0402_1005Metric | C38, C39 |
| 1 | 470pF | C_0402_1005Metric | C40 |
| 1 | 1000pF X7R | C_0402_1005Metric | C48 |
| 1 | 2.2uF/25V | C_0805_2012Metric | C53 |
| 2 | 1uF / 16V | C_0805_2012Metric | C54, C55 |
| 1 | 4.7uF/25V/X7R | C_0805_2012Metric | C56 |
| 1 | 0.1uF/25V/X7R | C_0805_2012Metric | C57 |
| 11 | 10k | R_0402_1005Metric | R2, R3, R5, R6, R8, R25, R46, R76 +3 |
| 1 | 69.8k | R_0402_1005Metric | R4 |
| 14 | 100k | R_0402_1005Metric | R7, R24, R29, R30, R35, R36, R41, R42 +6 |
| 8 | 270R | R_0402_1005Metric | R9, R10, R26, R47, R66, R67, R80, R81 |
| 9 | 22R | R_0402_1005Metric | R11, R12, R13, R14, R15, R16, R17, R18 +1 |
| 2 | 39k | R_0402_1005Metric | R20, R22 |
| 1 | 5.6k | R_0402_1005Metric | R21 |
| 1 | 1k | R_0402_1005Metric | R23 |
| 4 | 47k | R_0402_1005Metric | R27, R33, R39, R70 |
| 12 | 33k | R_0402_1005Metric | R28, R31, R32, R34, R37, R38, R40, R43 +4 |
| 1 | 1.5K | R_0402_1005Metric | R51 |
| 5 | 33R | R_0402_1005Metric | R52, R53, R54, R55, R56 |
| 4 | 50R | R_0402_1005Metric | R57, R59, R60, R61 |
| 1 | 12.1k | R_0402_1005Metric | R58 |
| 4 | 75R | R_0402_1005Metric | R62, R63, R64, R65 |
| 2 | 220 | R_0402_1005Metric | R68, R69 |
| 1 | 1M | R_0402_1005Metric | R82 |
Asynth2osc design files
The KiCad project lives in the madees/asynth2osc repository on GitHub; these links point at the commit this page was built from.
Asynth2osc: common questions
What microcontroller does the Asynth2osc use?
The Asynth2osc is built around the STM32F723VETX, from the STM32 family.
How big is the Asynth2osc PCB?
The Asynth2osc measures 69 × 106 mm, has 4 copper layers and is 1.600198 mm thick.
How many components are on the Asynth2osc?
194 components, from 75 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 Asynth2osc design files?
From the madees/asynth2osc 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 Asynth2osc design in my own project?
Yes, under the terms of its GPL-3.0 license, which madees chose for the repository.
Can I test firmware for the Asynth2osc 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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