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2 layers171.5 × 105.5 mmLif neuron schematic, the printed circuit board in 3D

Lif neuron schematic

YYK2007/lif-neuron-pcb

Analog leaky-integrate-and-fire neuron PCB designed in KiCad.

Size
171.5 × 105.5 mm
Copper layers
2
Thickness
1.6 mm
Parts
49
Nets
65
Pads
179
Tracks, vias
772, 34
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
23 Jun 2026
Updated
24 Jun 2026

Overview

Lif neuron schematic is an open-source printed circuit board by YYK2007, from the YYK2007/lif-neuron-pcb repository on GitHub. It is a 2-layer board of 171.5 × 105.5 mm with 49 parts on 65 nets, routed with 772 tracks and 34 vias.

It is built around the MCP6004-E/P, LM339 and BSS84. Its parts include 23 resistors, 7 diodes, 4 capacitors, 3 ICs and 1 transistor. It belongs with the ESP32 boards of this library.

Main components

3

README

README.md

LIF Neuron PCB

LIF Neuron PCB is an analog leaky-integrate-and-fire neuron board designed in KiCad, then prepared for milling and testing as a physical neuromorphic circuit.

Project

This project turns the leaky-integrate-and-fire neuron model into an actual PCB. Instead of keeping the neuron as code or a simulation, the circuit uses analog behavior such as integration, leak, thresholding, reset, and visible output so the dynamics can be probed on a board.

It became the electronics foundation for later NeuroAR work. The exact analog board did not become the final glasses signal processor, but designing and milling it taught the KiCad, footprint, routing, and production lessons that made the later ADS1292 board possible.

Repository Layout

  • source/ contains the working source files, firmware, CAD, board files, scripts, or app code.
  • artifacts/ contains packaged project assets such as design bundles, board packages, firmware bundles, or distributable files.
  • docs/development/ contains the build notes, tests, screenshots, and design rationale.
  • docs/media/ contains images and videos used by the development notes.

Key Files

Project Artifacts

Development Notes

Background

This project was developed by Youssef Kusibati during Fab Academy 2026 while working across FabLab Benfica and FabLab Kannai. The development notes are included here for context, and the original site reference is available at https://fabacademy.org/2026/labs/kannai/students/youssef-kusibati/.

License

See LICENSE. Some included datasets or upstream materials may carry their own attribution terms; check nearby license or attribution files when present.

Parts

49
QtyValueFootprintReferences
71kfab:R_1206R_SP1, R10_L1, R11_L1, R12_L1, R13_L1, R14_L1, R15_L1
722kfab:R_1206R1, R2, R11_T1, R12_T1, R13_B1, R13_T1, R14_B1
7LED_Smallfab:LED_1206D1, D2, D3, D4, D5, D6, D7
415kfab:R_1206R10_B1, R11_B1, R14_T1, R15_T1
3100kfab:R_1206R3, R4, R8
3100nfab:C_1206C1, C3, C4
310kfab:R_1206R5, R10, R11
327kfab:R_1206R6, R10_T1, R15_B1
247kfab:R_1206R7, R9
2LM339fab:SOIC-14_3.9x8.7mm_P1.27mmU2, U3
118kfab:R_1206R12_B1
122uCapacitor_THT:CP_Radial_D5.0mm_P2.00mmC2
1BSS84Package_TO_SOT_SMD:SOT-23Q1
1Conn_01x04fab:PinHeader_01x04_P2.54mm_Vertical_THT_D1mmJ1
1MCP6004fab:SOIC-14_3.9x8.7mm_P1.27mmU1
1Module_XIAO-ESP32S3PCM_fab:SeeedStudio_XIAO_ESP32S3M1
1R_Potentiometerfab:Potentiometer_TT_Model-23_4.5x5.0x3.0mmRV1
1SW_SPDTButton_Switch_THT:SW_E-Switch_EG1271_SPDTSW1

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Questions

How big is the Lif neuron schematic PCB?

It measures 171.5 × 105.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Lif neuron schematic use?

49 parts, built around the MCP6004-E/P, LM339 and BSS84. 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 Lif neuron schematic KiCad files?

From the YYK2007/lif-neuron-pcb repository on GitHub, at the commit this page was made from: the board is source/lif_neuron_schematic.kicad_pcb and its schematic source/lif_neuron_schematic.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Lif neuron schematic design in my own project?

Its repository states no licence, so its author keeps all rights: ask YYK2007 before reusing the design.