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The infrared receiver is hardware that sends information from an infrared remote control to another device by receiving and decoding signals
5V Working Current <8 mA Idle Current ~5 mA Probe Frequency 40 kHz Maximum Range 600 cm (6 m) Minimum Range 20 cm Accuracy ±1 cm Resolution 1 mm Measuring Angle 75° Interface TRIG (input) + ECHO (output) — digital GPIO
and the real environment can all affect the reading
so it can be programmed and powered through a USB connection
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Audio Analyzer MSGEQ7 uno r3 case The infrared receiver is hardware7 Band Audio Spectrum Analyzer MSGEQ7 Module The MSGEQ7 Audio Analyzer splits an audio signal into 7 frequency bands (63 Hz, 160 Hz, 400 Hz, 1 kHz, 2. 5 kHz, 6. 25 kHz, 16 kHz) and outputs the amplitude of each band as an analog voltage. Feed the output into an Arduino or ESP32 to build music visualizers, LED spectrum displays, VU meters, and reactive lighting installations. What you can build LED spectrum analyzer: Drive an LED strip or LED matrix
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