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First Sketch: Make an LED Blink - Environmental Monitoring with Arduino [Book]
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What is the solution for this problem? How do I connect a 64 LED with an Arduino Uno R3? The Arduino has only 13 pins for a digital I/o.' - Quora
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I don't get why the LED is still going when port 13 is set to high. If anyone could explain that would be great! :) : r/arduino
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![First Sketch: Make an LED Blink - Environmental Monitoring with Arduino [Book]](https://www.oreilly.com/api/v2/epubs/9781449328603/files/httpatomoreillycomsourceoreillyimages971415.png "First Sketch: Make an LED Blink - Environmental Monitoring with Arduino [Book]")
First Sketch: Make an LED Blink - Environmental Monitoring with Arduino [Book]
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Amazon.com: Arduino UNO R4 WiFi [ABX00087] - Renesas RA4M1 / ESP32-S3 - Wi-Fi, Bluetooth, USB-C, CAN, DAC, OP AMP, Qwiic Connector, 12x8 LED Matrix : Electronics
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