If you had an array of high power addressable LEDs, how would you project them onto a wall? Perhaps you’d use a Fresnel lens, or maybe an individual lens on the top of each. [Joo] faced this problem ...
The XGIMI Elfin Smart LED Projector has excellent projector hardware for the price, but iOS users are hampered by software that just doesn't work adequately. If this were a review of the hardware on ...
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