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EEEEE P10 Red LED Panel Display Large Size 32cm X 16cm, 512 pcs of LED, Each Individual addressable, Controlled by Uno r3 with Arduino IDE. - Newegg.com
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ALAMSCN MAX7219 Dot Matrix Module 32x8 4 in 1 LED Display Modules for Arduino Raspberry Pi Microcontroller with 5Pin Wires Red (Pack of 2)
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Adafruit 1.2 4-Digit 7-Segment Display w/I2C Backpack - Red : ID 1270 : $17.50 : Adafruit Industries, Unique & fun DIY electronics and kits
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