2 layers164.6 × 108 mm
2 layers125.5 × 96.1 mm
LittleBenv2
Quinienl/LittleBen11LittleBen eurorack master clock
- Size
- 125.5 × 96.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 49
- Nets
- 80
- Pads
- 206
- Tracks, vias
- 296, 1
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 12 Nov 2022
- Updated
- 12 Dec 2022
Overview
LittleBenv2 is an open-source printed circuit board by Quinienl, from the Quinienl/LittleBen repository on GitHub. It is a 2-layer board of 125.5 × 96.1 mm with 49 parts on 80 nets, routed with 296 tracks and 1 via.
It is built around the 74HC595 and L7805. Its parts include 15 resistors, 7 connectors, 4 capacitors, 3 ICs and 3 diodes. It belongs with the audio and music boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
2
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 Registers
L7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdLittleBen
LittleBen eurorack master clock
LittleBen is a masterclock for eurorack. It's based on a Arduino Mini. This is the second version. I decided to open source all files for this module. In this repo you will find all the files needed for making the pcb and panel for littleben. This files are created with Kicad 6.
This version has a few minor issues I would like to fix.
- The panel has a hole for the lcd screen thats need a little bit more on the left side and a little less on the right side.
More info at: https://www.quinie.nl/category/diy/littleben/
Parts
49| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | AudioJack2_SwitchT | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | ClockOut1, ClockOut2, ClockOut3, ClockOut4, Play1, ResetOut1, ResetOut2, ResetOut3, ResetOut4, Stop1 |
| 8 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R8 |
| 4 | 100k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R9, R11, R12, R14 |
| 3 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3 |
| 2 | 1m | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R10, R13 |
| 2 | 2N3906 | Package_TO_SOT_THT:TO-92_Inline_Wide | Q1, Q2 |
| 2 | MountingHole | MountingHole:MountingHole_3mm | H1, H2 |
| 2 | SW_Push | e-switch:TL2230 | SW_PLAY1, SW_STOP1 |
| 1 | 100n | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C1 |
| 1 | 100nf | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C4 |
| 1 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R15 |
| 1 | 3.3Uf | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C3 |
| 1 | 74HC595 | Package_DIP:DIP-16_W7.62mm | U2 |
| 1 | ARDUINO_PRO_MINI | ArduinoProMini:MODULE_ARDUINO_PRO_MINI | U3 |
| 1 | CP | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C2 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J7 |
| 1 | Conn_01x08 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J5 |
| 1 | Conn_01x08 | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical | J3 |
| 1 | Conn_01x10 | Connector_PinSocket_2.54mm:PinSocket_1x10_P2.54mm_Vertical | J2 |
| 1 | Conn_01x10 | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J1 |
| 1 | Conn_02x05_Odd_Even | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J4 |
| 1 | L7805 | Package_TO_SOT_THT:TO-220-3_Vertical | U4 |
| 1 | Oled | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J6 |
| 1 | Rotary_Encoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC12E-Switch_Vertical_H20mm | SW1 |
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Questions
How big is the LittleBenv2 PCB?
It measures 125.5 × 96.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LittleBenv2 use?
49 parts, built around the 74HC595 and L7805. 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 LittleBenv2 KiCad files?
From the Quinienl/LittleBen repository on GitHub, at the commit this page was made from: the board is LittleBenv2.kicad_pcb and its schematic LittleBenv2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LittleBenv2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask Quinienl before reusing the design.