2 layers50 × 90 mm
2 layers293.4 × 80.5 mm
Mls800
blemasle/mls800-pcb38 MIDI controlled loops switcher PCBs
- Size
- 293.4 × 80.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 95
- Nets
- 124
- Pads
- 516
- Tracks, vias
- 1,425, 141
- Pours
- 15
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 16 Jan 2019
- Updated
- 19 Jan 2019
Overview
Mls800 is an open-source printed circuit board by blemasle, from the blemasle/mls800-pcb repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 293.4 × 80.5 mm with 95 parts on 124 nets, routed with 1,425 tracks and 141 vias.
It is built around the ATMEGA32U4-AU, ULN2803A and 24LC256-I/P, with the MCP23017-E/SS, CG0603MLC-05E and LTC-5723HR among its other parts. Its parts include 20 capacitors, 18 resistors, 17 connectors, 11 switches and 9 ICs. It belongs with the audio and music boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
7
ATMEGA32U4-AU
QFP-44(10x10)-40℃~+85℃ 10bit 16MHz 1KB 2.5KB 2.7V~5.5V 26 32KB 8 Bit AVR Built-in FLASH QFP-44(10x10) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
ULN2803A
SOP-18-300mil-40℃~+85℃ 0.93mA 100uA 15pF 20uA 30V 500mA 50V 8 SOP-18-300mil Darlington Transistor Arrays ROHSUMWDarlington Transistor Arrays
24LC256-I/P
PDIP-8-40℃~+85℃ 1,000,000 cycles 2.5V~5.5V 200 Years 256Kbit 400kHz 5ms Hardware write protection function、Noise suppression function I2C PDIP-8 EEPROM ROHSMicrochip TechnologyEEPROM
MCP23017-E/SS
SSOP-28(5.3x10.2x0.65)-40℃~+125℃ 1.7MHz 1.8V~5.5V 16 1uA 600mV 8 8mA I2C Interrupt Output Reset function、Cascading and address extension SSOP-28 I/O Expanders ROHSMicrochip TechnologyI/O Expanders
CG0603MLC-05E
0603-55℃~+125℃ 0.2pF 1 10nA 30V 5V Bidirectional IEC 61000-4-2 0603 ESD and Surge Protection (TVS/ESD) ROHSBournsVaristors
LTC-5723HR
DIP-12-35℃~+85℃ 0.56 2.4mcd 2V 4 7 Segment 75mW Common Cathode Red DIP-12 LED Segment Displays ROHSLite-OnLED Segment Displays
MF-MSMF050-2
1812-40℃~+85℃ 100A 150mΩ 15V 1A 1Ω 3.2mm 5.4mm 500mA 1812 Resettable Fuses ROHSBournsResettable Fuses
README
README.md
MLS800 PCBs
The MLS800 is an open-source 1U rack unit MIDI controlled Loop Switcher with 8 audio loops.
- 8 independent audio loops
- 128 presets
- Active preset is remotly controlled through MIDI
Program Changemessages - Easy to read through a 4 digits 7 segments display and 9 illuminated switches
This repository contains KiCad files needed to produce the two PCBs.
See the documentation for futher info on the project.
Parts
95| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 0.1uF | Capacitors_SMD:C_0805_HandSoldering | C4, C5, C7, C9, C10, C11, C12, C13, C14, C18, C20 |
| 10 | SW_TACT_LED | Custom-device:MEC-5G | SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11 |
| 8 | LATCH_DPDT | Custom-device:Relay_SMD_DPDT-RT2_bistabil | RE1, RE2, RE3, RE4, RE5, RE6, RE7, RE8 |
| 8 | NSJ8HC | Custom-conn:NSJ8HL | J3, J4, J5, J6, J7, J8, J9, J10 |
| 7 | 1k | Resistors_SMD:R_0805_HandSoldering | R5, R8, R9, R10, R11, R12, R18 |
| 3 | 100uF | Capacitors_SMD:c_elec_6.3x7.7 | C15, C16, C19 |
| 3 | 10k | Resistors_SMD:R_0805_HandSoldering | R1, R4, R6 |
| 3 | 220R | Resistors_SMD:R_0805_HandSoldering | R15, R16, R17 |
| 3 | CONN_02X03 | Custom-conn:VASCH3x2 | P1, P4, P5 |
| 2 | 0.22uF | Capacitors_SMD:C_0805_HandSoldering | C3, C17 |
| 2 | 1N4001 | Diodes_SMD:Diode-SMA_Handsoldering | D2, D6 |
| 2 | 1N4148 | Custom-device:SOD-123_Handsoldering | D1, D5 |
| 2 | 22R | Resistors_SMD:R_0805_HandSoldering | R13, R14 |
| 2 | 22pF | Capacitors_SMD:C_0805_HandSoldering | C1, C2 |
| 2 | CG0603MLC-05E | Resistors_SMD:R_0603_HandSoldering | VR1, VR2 |
| 2 | DIN_5 | Custom-conn:DIN_5 | P2, P3 |
| 2 | LM340MP-5.0/NOPB | SMD_Packages:SOT-223 | U1, U8 |
| 2 | NRJ4HF-1 | Custom-conn:NRJ4HF-1 | J2, J11 |
| 2 | ULN2803A | Housings_SOIC:SOIC-18_7.5x11.6mm_Pitch1.27mm | U6, U7 |
| 1 | 0R | Resistors_SMD:R_0805_HandSoldering | R2 |
| 1 | 10K | Resistors_SMD:R_0805_HandSoldering | R7 |
| 1 | 16Mhz | Crystals_Oscillators_SMD:Q_49U3HMS | X1 |
| 1 | 1uF | Capacitors_SMD:C_0805_HandSoldering | C6 |
| 1 | 22uF | Capacitors_SMD:C_1210_HandSoldering | C8 |
| 1 | 23.6k | Resistors_SMD:R_0805_HandSoldering | R19 |
| 1 | 24LC256 | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U3 |
| 1 | 6N137 | SMD_Packages:DIP-8_SMD | IC1 |
| 1 | AS1115 | Housings_SSOP:SSOP-24_3.9x8.7mm_Pitch0.635mm | U5 |
| 1 | ATmega32U4-AU | Housings_QFP:TQFP-44_10x10mm_Pitch0.8mm | U2 |
| 1 | BARREL_JACK | Connect:JACK_ALIM | CON1 |
| 1 | CONN_01X01 | Connect:1pin | MH1 |
| 1 | LTC-5723HR | Custom-display:LTC-5723 | AFF1 |
| 1 | MCP23017 | Housings_SSOP:SSOP-28_5.3x10.2mm_Pitch0.65mm | U4 |
| 1 | MF-MSMF050-2 | SMD_Packages:SMD-1812 | F1 |
| 1 | Red | LEDs:LED-0805 | D4 |
| 1 | SW_PUSH_RIGHT_ANGLE | Custom-device:SW_PUSH_RIGHT_ANGLE | SW12 |
| 1 | USB | Connect:USB_B | J1 |
| 1 | Yellow | LEDs:LED-0805 | D3 |
Questions
How big is the Mls800 PCB?
It measures 293.4 × 80.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Mls800 use?
95 parts, built around the ATMEGA32U4-AU, ULN2803A, 24LC256-I/P and MCP23017-E/SS. 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 Mls800 KiCad files?
From the blemasle/mls800-pcb repository on GitHub, at the commit this page was made from: the board is mls800.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mls800 design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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