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I made a 7-segment display module that allows you to add any size display to your project with just 2 GPIO! : r/arduino
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Amazon.com: uxcell Common Cathode 10 Pin 1 Bit 7 Segment Display 1.1 x 0.79 x 0.35 Inch 0.55" Red LED Display Digital Tube 10pcs : Industrial & Scientific
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Adafruit 0.56 4-Digit 7-Segment Display w/I2C Backpack - Yellow : ID 879 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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OEM New LED 7 Segment Display Single Digit Numeric LED Display 0.36 Inch Customized, Factory, Supplier, Manufacturer
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