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The HP 48G/GX calculator had a learning and preprogrammed IR remote control app that used its extremely powerful IR LED to could control TVs around 60-100' / 20
by hi-v-rocknroll 2y ago
The HP 48G/GX calculator had a learning and preprogrammed IR remote control app that used its extremely powerful IR LED to could control TVs around 60-100' / 20-30m away.