DFRobot LCD Keypad Shield from Hacktronics.com
The buttons all use the same single analog input line, presenting a different voltage divider output for determining which button was pushed. See more at [ Ссылка ]
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DFRobot LCD Keypad Shield from Hacktronics.com
The buttons all use the same single analog input line, presenting a different voltage divider output for determining which button was pushed. See more at [ Ссылка ]