2 layers98.8 × 64.6 mm
MixtapeNEO Pixelache
8BitMixtape/8Bitmixtape_reworked
Complete revision of files - Now full with KiCad 5 and svg2shenzhen. Many new designs available!!
62 parts6GPL-3.0
2 layers33.3 × 106.7 mm
8Bit EuroRack-7hp
8BitMixtape/8Bit_EuroRack-7hp38Bit Mixtape goes Modular!! Due to popular requests... adapted and improved the mixtape circuit to fit into standard Eurorack Modular format
- Size
- 33.3 × 106.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 51
- Nets
- 25
- Pads
- 135
- Tracks, vias
- 358, 25
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 15 May 2019
- Updated
- 2 Jun 2019
Overview
8Bit EuroRack-7hp is an open-source printed circuit board by 8BitMixtape, from the 8BitMixtape/8Bit_EuroRack-7hp repository on GitHub. It is a 2-layer board of 33.3 × 106.7 mm with 51 parts on 25 nets, routed with 358 tracks and 25 vias.
It is built around the ATTINY85-20SU and SK6812. Its parts include 15 resistors, 8 connectors, 4 capacitors, 3 switches and 2 ICs. It belongs with the audio and music and retro computing and games boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
2
ATTINY85-20SU
SOIC-8-208mil-40℃~+85℃ 10bit 2.7V~5.5V 20MHz 512Byte 512Byte 6 8 Bit 8KB AVR Built-in FLASH SOIC-8-208mil Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
SK6812
SMD-4P,5.4x5mm-40℃~+85℃ 0.6mA 1.6mm 120° 160mcd~320mcd 1kHz 2000V 280mcd~515mcd 3.7V~5.5V 460nm~470nm 520nm~530nm 620nm~625nm 800Kbit/s 815mcd~1275mcd Built-in power-on reset circuit Semi-transparent lens SMD-4P,5.4x5mm RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)
README
README.md8Bit_EuroRack-7hp
8Bit Mixtape goes Modular!! Due to popular requests... adapted and improved the mixtape circuit to fit into standard Eurorack Modular format
Join and follow our discussion on the forum:
https://8bitmixtape.discourse.group/t/eurorack-rebooted/47/4
Features
7hp more space for style!
Two board design
Maybe the Eurorack scene like to have more this kinda standard double-decker style
0.1 Prototype - WORKING
to improve
- Put 2 Neopixel und the potentiometers each
- switch position of Chip and Buttons to create more space between pot and buttons
- optimize position of jacks and pots (sub-millimeter improvements)
- What kinda buttons to use????
- create nice front plates
- anything else?
Schematic
Parts
51| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | JACK_2P | 8Bit_Eurorack:PJ301M-12_dusjagr_3d | Jack1, Jack2, Jack3, Jack4, Jack5, Jack6, Jack7 |
| 5 | 22k | 8Bit_Eurorack:R_1206_3d | R1, R2, R3, R4, R5 |
| 4 | 1K | 8Bit_Eurorack:R_1206_3d | R12, R13, R14, R15 |
| 4 | LED | 8Bit_Eurorack:LED_PLCC_2835_Handsoldering | D-OUT1, D-PB0, D-POW1, D-SYNC1 |
| 3 | 100nF | 8Bit_Eurorack:C_1206_3d | C1, C2, C3 |
| 2 | 22K | 8Bit_Eurorack:R_1206_3d | R6, R7 |
| 2 | 330 | 8Bit_Eurorack:R_1206_3d | R8, R9 |
| 2 | 4.7K | 8Bit_Eurorack:R_1206_3d | R10, R11 |
| 2 | CONN_01X04 | 8Bit_Eurorack:Angled_1x04_Pitch2.54mm-3d | J1, J2 |
| 2 | POT 10K lin | 8Bit_Eurorack:RD901F-ALPHA-3D | POT1-MAIN1, POT2-CV1 |
| 2 | SW_Push | 8Bit_Eurorack:TACTILE-PTH_3d | SW2, SW3 |
| 2 | Sync_Jumper | 8Bit_Eurorack:Sync_jumper_small | J6, J9 |
| 1 | 10uF | 8Bit_Eurorack:C_1206_3d | C4 |
| 1 | 7805 | TO_SOT_Packages_SMD:TO-252-3_TabPin2 | U3 |
| 1 | ATTINY85-20SU | 8Bit_Eurorack:DIP-8_Attiny_with_Socket_3d | U1 |
| 1 | Con_3-5V | 8Bit_Eurorack:Bat_connector_SMD | J4 |
| 1 | Conn_01x02 | 8Bit_Eurorack:Pin_Header_Angled_1x02_Pitch2.54mm | J8 |
| 1 | Conn_01x02 | 8Bit_Eurorack:Socket_Strip_Angled_1x02_Pitch2.54mm | J5 |
| 1 | Conn_02x05_Odd_Even | 8Bit_Eurorack:Pin_Header_Angled_2x05_Pitch2.54mm_with_space_for_con | J7 |
| 1 | SK6812 | 8Bit_Eurorack:Mixtape_NEO_WS2812B_3d | D1 |
| 1 | SVG2SHENZHEN | 8Bit_Eurorack:8Bit_EuroRack-NEO_7hp | board1 |
| 1 | SW_Push | 8Bit_Eurorack:SW_SPST_3d | SW4 |
| 1 | Val** | 8Bit_Eurorack:Coconut_logo | Ref** |
| 1 | Val** | 8Bit_Eurorack:CACR_chinese_vert | Ref** |
| 1 | Val** | 8Bit_Eurorack:8bitmixtape_credits_FSilk | Ref** |
| 1 | Val** | 8Bit_Eurorack:MadeInTaiwan | Ref** |
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Questions
How big is the 8Bit EuroRack-7hp PCB?
It measures 33.3 × 106.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 8Bit EuroRack-7hp use?
51 parts, built around the ATTINY85-20SU and SK6812. 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 8Bit EuroRack-7hp KiCad files?
From the 8BitMixtape/8Bit_EuroRack-7hp repository on GitHub, at the commit this page was made from: the board is KiCAD/8Bit_EuroRack_7hp.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the 8Bit EuroRack-7hp design in my own project?
Its repository states no licence, so its author keeps all rights: ask 8BitMixtape before reusing the design.