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PrakasiT: งานที่ 18 https://circuitdigest.com/microcontroller-projects
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Prakasit: งานที่ 18 https://circuitdigest.com/microcontroller-projects
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Evaluation of 24 digital inputs .
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![[DIAGRAM] Nokia Keypad Diagram - MYDIAGRAM.ONLINE](https://i2.wp.com/www.electronicwings.com/public/images/user_images/images/Arduino/Keypad/Keypad_4x4_Interfacing_Diagram.png)
![[DIAGRAM] Nokia 101 Keypad Ic Diagram - MYDIAGRAM.ONLINE](https://i2.wp.com/wiki.sunfounder.cc/images/f/f9/Keypad_schematic.png)
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