2 layers84.7 × 55.5 mm

EntropyLoop v1
QuantumVillage/EntropyLoop
A Fully Open Source, Low Cost Phase-Diffusion Quantum Random Number Generator Using Off the Shelf Parts, Brought to you by Quantum Village
12 parts77MPL-2.0
KiCad boards from 1 GitHub repository tagged “random-number-generators”, the most starred first; open any of them in PCBKit.

QuantumVillage/EntropyLoop
A Fully Open Source, Low Cost Phase-Diffusion Quantum Random Number Generator Using Off the Shelf Parts, Brought to you by Quantum Village