Project: 3 independent counters

Hello good. I have a project proposal as a challenge and I need help. I have an Arduino (it doesn't matter which one), 3 7-segment displays and 3 buttons, I must make 3 counters from 0 to 9 independent of each other. I have no idea how to make the component connections. I even had the idea of ​​using a module with 3 displays in one, but I don't know if it is possible to build 3 independent counters with that module. Could you help me?? How do I connect all the components to the Arduino and how would I do the programming? (
sorry for the translation, I'm using google translator).

Note: any type of arduino can be used, it is free

What kind of Arduino will you be using?

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I can use any type, it's free

The number of available I/O pins in your Arduino and the display type will determine what auxiliary hardware you‘ll need, like shift registers, transistors, resistors.

Have you selected a display type?
Common anode, common cathode, 4x1, 2x2, 1x4?

What have you researched about this topic?

Try this.

a7

The idea is simple, 3 independent counters from 0-9 activated by a button each. It does not matter if it is a common anode, common cathode, 1 3-digit display, or 3 displays. The problem is the physical connection to the arduino and the definition of the variables.
Its free

close, this is 4 digits and is automatic, the idea is to use buttons

I would use 1 Nano and 1 TM1637:

https://www.arduino.cc/reference/en/libraries/tm1637/

https://arduinogetstarted.com/tutorials/arduino-tm1637-4-digit-7-segment-display

https://lastminuteengineers.com/tm1637-arduino-tutorial/

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Good idea, but..... the TM1637 is 4 digits. Is there a version of 3? I'm not sure

Never seen one, just write a silly animation for the unused digit. :grin:

Hard to please much?

The simulation shows you how to wire up seven segment displays.

It demonstrates doing anything at all with them using plain code.

Surely you have had some kind of experience using buttons, so just add some buttons and make them do what you need.

a7

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Code dumping to save time and effort in teaching unteachable.

Three.

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