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The HP 48G series graphing RPN calculator had such a powerful, software-controllable IR LED with a learning remote program someone wrote that could control TVs
by burnt-resistor 15d ago
The HP 48G series graphing RPN calculator had such a powerful, software-controllable IR LED with a learning remote program someone wrote that could control TVs roughly 70' / 20 m away as long as the TV had a sensitive enough IR receiver circuit. Some hijinks might've happened in the physics lecture hall but no exams or lectures were harmed.