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Indicator - 4 / 7 Indicator (Cathode)

Connection diagram 4 / 7 Indicator (Cathode).

An example of displaying numerical information.
 

VideoArduBlock 2.0 - Indicator - 4 / 7 Indicator (Cathode)

Components from Aliexpress:

Arduino UNO board Indicators 1-4 / 7 Cathode Resistors 5mm LEDs Breadboard + wires

 

Atmega Microcontroller Software Development Center
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