Home » How to build an Artificial Synapse The video below shows how to build artificial synapses on breadboards using LEDs as an optocoupler. Most biological neurons have thousands of connections to other synapses and each connection forms a synapse. When building artificial neurons artificial synapses are likely needed to connect to other neurons. Each synapse consists of an inverter, an optocoupler made with two LEDs, an output buffer, a diode, and a variable resistor. If the synapse is inhibi...