4 layers113.5 × 105.5 mm
Multistepper
eddyem/stm32samples
Code samples and ready projects based on bare-metal STM32
243 parts208
2 layers100.2 × 116.5 mm
Lepetocontrol
svofski/lepetomane-control6A MIDI control surface with pretty LEDs
- Size
- 100.2 × 116.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 145
- Nets
- 119
- Pads
- 468
- Tracks, vias
- 1,915, 231
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 16 Nov 2024
- Updated
- 28 Nov 2024
Overview
Lepetocontrol is an open-source printed circuit board by svofski, from the svofski/lepetomane-control repository on GitHub. It is a 2-layer board of 100.2 × 116.5 mm with 145 parts on 119 nets, routed with 1,915 tracks and 231 vias.
It is built around the 74HC595, 74HC4051 and LM1117-3.3, with the BC817 among its other parts. Its parts include 60 diodes, 21 resistors, 13 capacitors, 13 connectors and 11 ICs. It belongs with the audio and music boards and the STM32 boards of this library.
Main components
4
74HC595
SOP-16-40℃~+85℃ 1 100ns@5V,50pF 10MHz 2V~6V 74HC 8 Serial-to-Serial or Parallel Tri-State SOP-16 Shift Registers ROHSGRShift Registers74HC4051
SOP-16-40℃~+85℃ 1 170MHz 28ns 29ns 3V~9V 5ns 5pF 80Ω 8:1 SOP-16 Analog Switches, Multiplexers ROHSWuxi I-core ElecAnalog Switches, Multiplexers
LM1117-3.3
SOT-2231 1.3V@(1000mA) 15V 1A 2mA 3.3V Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHShongjiachengUncategorised
BC817
SOT-231 NPN 100nA 150MHz 300mW 40 45V 500mA 5V 700mV NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)
README
README.mdPétocontrôle
This is a MIDI control surface that sends CC messages when you turn the knobs. The main features are:
- magnetic encoders (AS5600) with real potentiometer mechanics for ultra-smooth potentiometer-like feel
- beautiful 0402 orange LEDs that show knob positions
- Futaba 8-MD-06INKM VFD display
I wanted smooth feel encoders that work like proper potentiometers. These days everything is implemented using notchy encoders and although smooth input encoders do exist, they are somewhat uncommon.
The design consists of two boards, the bottom one has MCU and the sensors, the top "mezzanine" board has the shift registers for the LEDs and holes for the knob shafts. The knobs are mechanisms ripped out from cheap potentiometers, they have little magnets glued into their bottom ends. Several boards can in theory attach to one another to form long strips of knobs.
Design files
Parts
145| Qty | Value | Footprint | References |
|---|---|---|---|
| 60 | LED | LEDs:LED_0402 | D1, D2, D10, D11, D12, D13, D14, D15, D17, D18, D19, D20, D21, D22, D23, D24 +44 |
| 10 | 100nF | Capacitors_SMD:C_0603 | C3, C4, C5, C6, C7, C8, C9, C11, C13, C15 |
| 8 | 100 | Resistors_SMD:R_0805 | R9, R10, R11, R12, R13, R14, R15, R16 |
| 8 | 1K | Resistors_SMD:R_0805 | R1, R2, R3, R4, R5, R6, R7, R8 |
| 8 | BC817 | TO_SOT_Packages_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 |
| 4 | AS5600 | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U5, U7, U9, U11 |
| 4 | MountingHole | lepetocontrol:pot-mounting-hole | H1, H2, H3, H4 |
| 4 | MountingHole | Mounting_Holes:MountingHole_2.5mm | H5, H6, H7, H8 |
| 4 | SW | lepetocontrol:switch_6x6 | SW3, SW4, SW5, SW6 |
| 3 | 74HC595 | Housings_SOIC:SOIC-16_3.9x9.9mm_Pitch1.27mm | U1, U2, U6 |
| 2 | 10K | Resistors_SMD:R_0805 | R17, R19 |
| 2 | 1x05 | Pin_Headers:Pin_Header_Straight_1x05 | J1, J2 |
| 2 | 20p | Capacitors_SMD:C_0805 | C1, C2 |
| 2 | 2K7 | Resistors_SMD:R_0805 | R20, R22 |
| 2 | Conn_01x05_Female | Socket_Strips:Socket_Strip_Straight_1x05 | J6, J7 |
| 2 | SW | Buttons_Switches_ThroughHole:SW_Tactile_SPST_Angled | SW1, SW2 |
| 1 | 1K5 | Resistors_SMD:R_0805 | R18 |
| 1 | 220uF | Capacitors_Tantalum_SMD:CP_Tantalum_Case-D_EIA-7343-31_Reflow | C10 |
| 1 | 74HC4051 | Housings_SOIC:SOIC-16_3.9x9.9mm_Pitch1.27mm | U8 |
| 1 | 8MHz | Crystals:HC-49V | Y1 |
| 1 | Conn_01x03 | Pin_Headers:Pin_Header_Straight_1x03 | J5 |
| 1 | Conn_01x05 | Pin_Headers:Pin_Header_Angled_1x05 | J4 |
| 1 | Conn_02x05_Odd_Even | Socket_Strips:Socket_Strip_Angled_2x05 | J9 |
| 1 | Conn_02x05_Odd_Even | Pin_Headers:Pin_Header_Angled_2x05 | J8 |
| 1 | LM1117-3.3 | TO_SOT_Packages_SMD:SOT-223-3Lead_TabPin2 | U3 |
| 1 | LOGO | lepetocontrol:lepetocontrole-neg | G*** |
| 1 | LOGO | lepetocontrol:lepetocontrole | G*** |
| 1 | LOGO | svoface:svo-xface | G*** |
| 1 | SENSE1 | wirepads:WIREPAD_SMD_TINY | J10 |
| 1 | SENSE2 | wirepads:WIREPAD_SMD_TINY | J11 |
| 1 | SENSE3 | wirepads:WIREPAD_SMD_TINY | J12 |
| 1 | SENSE4 | wirepads:WIREPAD_SMD_TINY | J13 |
| 1 | STM32F103C4Tx | Housings_QFP:LQFP-48_7x7mm_Pitch0.5mm | U4 |
| 1 | USB_OTG | Connect:USB_Mini-B | J3 |
| 1 | lepetocontrol-mezzanine | lepetocontrol:lepetocontrol-mezzanine | MEZZANINE |
| 1 | oled-7pin | lepetocontrol:oled_1.3_spi | U10 |
Questions
How big is the Lepetocontrol PCB?
It measures 100.2 × 116.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Lepetocontrol use?
145 parts, built around the 74HC595, 74HC4051, LM1117-3.3 and BC817. 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 Lepetocontrol KiCad files?
From the svofski/lepetomane-control repository on GitHub, at the commit this page was made from: the board is kicad/lepetocontrol.kicad_pcb and its schematic kicad/lepetocontrol.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Lepetocontrol design in my own project?
Its repository states no licence, so its author keeps all rights: ask svofski before reusing the design.
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