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Neje Master 2S Plus - A40640 laser module to cut and engrave | I built RC airplane with this

Explore the capabilities of the Neje Master 2S Plus with its powerful A40640 laser module in this exciting video. Watch as I ...
Hackaday

Regular Old Diodes Can Be More Photosensitive Than You Think

Dhananjay Gadre] happened across a useful little trick the other day. Take any old 1N4148 or 1N914 glass-package signal diode ...