2 layers43.9 × 27.7 mmTcd1304-4vOpnTec/open-spectrometer-hardwareOpen source VIS spectrometer19 parts1.5k
4 layers85 × 56 mmPslab minifossasia/pslab-mini-hardwarePSLab Mini Hardware https://pslab.io182 parts1.2kApache-2.0