6 layers160 × 160.1 mm
ChromaDeck
FBIopeningUPP/ChromaDeck
ChromaDeck is a massive, open-source, fully custom USB MIDI Control Surface designed for streaming, video editing, and live audio mixing.
152 partsMIT
4 layers120 × 150 mm
VolumeMixer
lheywang/VolumeMixer1motorized voluem mixxer (deej like) with PCB / STM32 code !
- Size
- 120 × 150 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 186
- Nets
- 127
- Pads
- 574
- Tracks, vias
- 1,351, 525
- Pours
- 821
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 19 May 2025
- Updated
- 22 Feb 2026
Overview
VolumeMixer is an open-source printed circuit board by lheywang, from the lheywang/VolumeMixer repository on GitHub, published under the MIT licence. It is a 4-layer board of 120 × 150 mm with 186 parts on 127 nets, routed with 1,351 tracks and 525 vias.
It is built around the TL084, 24LC64(LX) and PRTR5V0U2X, with the PTA6043-2015CPB103 and TC2030-IDC-NL among its other parts. Its parts include 76 resistors, 58 capacitors, 11 connectors, 9 transistors and 8 ICs. It belongs with the STM32 boards of this library.
Main components
5
TL084
SOP-14-18V~18V 0℃~+70℃ 1.4mA 16V/us 20nA 3mV 4MHz 4nA 60mA 75dB Four channels Short-Circuit Protection、Built-in compensation SOP-14 FET Input Amplifiers ROHSGcoreOperational Amplifier
24LC64(LX)
SOP-8-40℃~+85℃ 1,000,000 cycles 1.8V~5.5V 100 Years 1MHz 5ms 64Kbit Hardware write protection function、Noise suppression function I2C SOP-8 EEPROM ROHSlingxingicEEPROM
PRTR5V0U2X
SOT-143-55℃~+125℃ 0.3pF、0.8pF 100W 10V、15V 5V 6.5V 6A 80nA ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Three channels Unidirectional SOT-143 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
PTA6043-2015CPB103
插件Potentiometers & Variable ResistorsBourns
TC2030-IDC-NL
UncategorisedTag Connect
README
README.mdVolume mixer
Volume mixer is a device that enable to configure the volume of different apps on the PC as well as the master volume directly by interracting with sliders on the device. Additionnally, oled screens are used to show different informations about each slider, including : A logo of the managed app, an volume value, and a mute status.
All of this code is working on Linux and Windows.
Parts
186| Qty | Value | Footprint | References |
|---|---|---|---|
| 41 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C10, C11, C12, C15, C16, C17, C19, C20, C21, C22, C26, C27, C32 +25 |
| 18 | 4,7K | Resistor_SMD:R_0603_1608Metric | R38, R39, R40, R41, R42, R43, R44, R45, R46, R47, R48, R49, R50, R51, R52, R53 +2 |
| 13 | 100 | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5, R11, R13, R15, R17, R19, R20, R21, R22 |
| 13 | 10k | Resistor_SMD:R_0603_1608Metric | R26, R30, R31, R32, R33, R34, R37, R62, R63, R65, R67, R69, R70 |
| 10 | 10K | Resistor_SMD:R_0603_1608Metric | R10, R12, R14, R16, R18, R23, R24, R25, R27, R28 |
| 10 | 2K | Resistor_SMD:R_0603_1608Metric | R56, R58, R59, R61, R64, R68, R71, R73, R74, R76 |
| 9 | NMOS | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9 |
| 5 | 20K | Resistor_SMD:R_0603_1608Metric | R57, R60, R66, R72, R75 |
| 5 | 680nF | Capacitor_SMD:C_0603_1608Metric | C48, C52, C54, C56, C58 |
| 5 | Conn_01x04_Pin | A_Please:Screen 0.91 I2C | J6, J7, J8, J9, J10 |
| 5 | LED | A_Please:LED C516299 | D3, D4, D5, D6, D7 |
| 5 | PTA6043-2015CPB103 | A_Please:Slider Bourns PTA6043-2015CPB103 | RV1, RV2, RV3, RV4, RV5 |
| 5 | TestPoint_Flag | TestPoint:TestPoint_Keystone_5015_Micro_Mini | TP1, TP2, TP3, TP4, TP5 |
| 4 | 2,2uF | Capacitor_SMD:C_0603_1608Metric | C28, C29, C30, C31 |
| 2 | 4,7uF | Capacitor_SMD:C_0603_1608Metric | C8, C23 |
| 2 | 47nF NP0 | Capacitor_SMD:C_0805_2012Metric | C18, C24 |
| 2 | 5,1k | Resistor_SMD:R_0603_1608Metric | R35, R36 |
| 2 | 95 | Resistor_SMD:R_0603_1608Metric | R8, R9 |
| 2 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1, J3 |
| 2 | MountingHole_Pad | A_Please:Vis M2.5 | H1, H2 |
| 2 | TL084 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U7, U8 |
| 2 | XC6206PxxxMR | Package_TO_SOT_SMD:SOT-23-3 | U3, U4 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R29 |
| 1 | 10nF | Capacitor_SMD:C_0603_1608Metric | C13 |
| 1 | 150 | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 1k2 | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C14 |
| 1 | 24LC64 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | 470nF | Capacitor_SMD:C_0603_1608Metric | C25 |
| 1 | 47nF | Capacitor_SMD:C_0603_1608Metric | C45 |
| 1 | 8MHz | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | Conn_01x10_Pin | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J2 |
| 1 | Conn_01x10_Pin | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical | J4 |
| 1 | HRO-TYPE-C-31-M-12 | A_USB_C:HRO-TYPE-C-31-M-12 | USB1 |
| 1 | JST | A_random_part:JST-SR-4 | J5 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D2 |
| 1 | LED_ARGB | A_Please:led rgb C7371893 | D1 |
| 1 | PRTR5V0U2X | Package_TO_SOT_SMD:SOT-143 | U5 |
| 1 | STM32F302C8Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_SKQG_WithStem | SW2 |
| 1 | TC2030-IDC | Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | CON1 |
| 1 | TCA9548APWR | Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm | U6 |
| 1 | ~ | A_Please:switch led C2848638 | SW3 |
| 1 | ~ | A_Please:switch C501547 | SW1 |
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Questions
How big is the VolumeMixer PCB?
It measures 120 × 150 mm and has 4 copper layers, 1.6 mm thick.
What parts does the VolumeMixer use?
186 parts, built around the TL084, 24LC64(LX), PRTR5V0U2X and PTA6043-2015CPB103. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the VolumeMixer KiCad files?
From the lheywang/VolumeMixer repository on GitHub, at the commit this page was made from: the board is pcb/rev1/volume-mixer.kicad_pcb and its schematic pcb/rev1/untitled.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the VolumeMixer design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).