Analog Electronic Neuron Demonstrator lu.i
The LU.I Neuron Demonstrator https://github.com/giant-axon/lu.i-neuron-pcb is a printed circuit board (PCB), which features a configurable, fully analog implementation of the leaky integrate-and-fire neuron model. It visualizes the membrane potential through a VU-meter-style chain of LEDs. Multiple lu.i boards can be connected to form simple neural networks.
The primary aim of the board is to serve as a “graspable” demonstration of a highly simplified building block of an analog spiking neural network, working in “decelerated real time”, so that the operation is visible to the naked eye.
The developers of the Lu.i boards are Sebastian Billaudelle, Julian Göltz and Yannik Stradmann.
Publication: arXiv:2404.16664
BrainScaleS for research
For research the Electronic Visions groups in Heidelberg operates the BrainScaleS system as part of the EBRAINS research infrastructure. This system features 512 neuron circuits per chip with complex dynamics and parameters to tune the neurons, operating at 1000x real time. Each neuron circuit integrates synaptic stimuli from a column of 256 plastic synapses and on chip programmable plasticity rules. To get access to the system (free of charge for testing), please follow the procedure described on the getting access page.
NICE 2025
The NICE 2025 takes place at the Heidelberg university, Kirchhoff-Institute for Physics in the EINC Building (European Institute for Neuromorphic Computing, https://einc.eu). EINC is inter alia the home of the BrainScaleS system.