
Boards using the MCP6004-E/P
248 boardsBoards in 176 GitHub repositories, designed in KiCad, that use the MCP6004-E/P by Microchip Technology (-40℃~+125℃ 1.8V~6V 100uA 1MHz 1pA 1pA 23mA 28nV/√Hz@1kHz 2uV/℃ 4 4.5mV 600V/ms 76dB ESD protection Rail-to-Rail Input, Rail-to-Rail Output PDIP-14 Operational Amplifier ROHS). See how each wires it, with its parts, size, README and files; the MCP6004-E/P’s symbol, footprint and pinout are on its own page.
- 4 layers70.8 × 108 mm

- 4 layers60 × 94 mm

DaisySeedPedal125b
bkshepherd/DaisySeedProjects
A collection of hardware and software projects based around the Electro-Smith Daisy Seed
80 parts559MIT - 2 layers75 × 100 mm

Phased
Neumi/open_echo
Open Source echo sounder / depth sounder / SONAR for bathymetry and research. Arduino based and compatible.
77 parts530 - 2 layers66 × 99 mm

Nucleo32TNC
mobilinkd/NucleoTNC
The Nucleo TNC is a breadboard implementation of the Mobilinkd TNC3 using a STM32L432KC Nucleo32 board. This TNC faithfully implements the audio section and EEPROM storage of the TNC3.
54 parts110GPL-3.0 - 2 layers171.5 × 106.7 mm

Sequencer
westlicht/performer-hardware
PER|FORMER Eurorack Sequencer - Hardware Design Files
435 parts110 - 2 layers267 × 300 mm

Output.Panel R0.5.1 300x300 2layer step1 Modified
rusefi/hw_microRusEfi
microRusEfi board for rusEfi ECU
2,371 parts98 - 4 layers29 × 20.9 mm

Wideband controller
mck1117/wideband
The firmware/boards directory contains configuration for each board this firmware supports.
60 parts81MIT - 2 layers248.9 × 120.7 mm

16nx
16n-faderbank/16nx
16nx is a controller for musical instruments. Sixteen faders,MIDI over USB and jack, CV out, and I2C out. Based around RP2040.
171 parts76 - 2 layers98.5 × 59.8 mm

Neuron
giant-axon/lu.i-neuron-pcb
Lu.i is an electronic neuron circuit mimicking and illustrating the basic dynamics of real, biological neurons. The printed circuit board (PCB) features a configurable, fully analog implementation of the leaky…
90 parts73CERN-OHL-S-2.0 - 4 layers100 × 100 mm

ESP32-Eurorack Audio
ctag-fh-kiel/esp32-eurorack-audio
Open source eurorack audio module based on ESP32
173 parts71 - 4 layers154.1 × 161.7 mm

- 4 layers135 × 82.5 mm

- 4 layers71 × 100 mm

Oscar components
dchwebb/Oscar
Eurorack 3 Channel Oscilloscope based on ARM STM32F446 MCU
71 parts42Unlicense - 4 layers58.4 × 101.9 mm

Up5k osc
emeb/up5k_osc
The brute-force approach is to synthesize these analog waveforms at sufficiently high sample rates that the timing jitter becomes imperceptible.
137 parts36MIT - 2 layers94.1 × 128.7 mm

Pink0 mergeMK1
seismicindustries/spink0
eurorack clk / rst generator for ableton LINK - based on pink-0
96 parts34 - 2 layers150.5 × 127 mm

Eurorack engine
sinneb/esp32-hvcc
Heavy compiler (hvcc) sources running on ESP32-DevKitC powered eurorack module
81 parts29 - 2 layers60 × 37 mm

Vi curve tracer
slightlynybbled/curve_tracer_hardware
Curve tracer - hardware source files
71 parts25MIT - 2 layers161.1 × 95 mm

Libre MIG
JustEnoughDucks/LibreMiG-S
Open Source Joystick/Open Source Flightstick that combines the Olukelu Gimbal with a MiG-31 inspired Flightstick designed for Star Citizen or space simulators
279 parts24 - 2 layers38.1 × 101.6 mm

RP2040 Audio
emeb/RP2040_Audio
A Eurorack module for stereo audio effects based on the Raspberry Pi RP2040 MCU
121 parts23MIT - 4 layers114 × 120 mm

- 2 layers60 × 110 mm

- 4 layers103 × 82.4 mm

- 4 layers60 × 110 mm

- 4 layers60 × 110 mm

Retrospector Components
dchwebb/Kishoof
Eurorack Wavetable Synthesizer; Dual channel; 64MB internal storage accessed via USB
123 parts17