Skeches

Circuits

Parts

• Arduino NANO
• SG90 x 2
• CDS Photo Transistor
• Tact Switches x 2
• 7 segment - 4 digit
• 9V batt.

Details

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• SG90 Pins - D3(L), D5(R) (PWM)
• Tact Switch Pins - D4(L), D6(R)
• CDS Pin - A0
• 7 Segment Pins
  • Segment = D11 (a), D12 (b), A1 (c), A2 (d), A3 (e), A4 (f), A5 (g), A6 (dp)
  • Digits = D7 (d1), D8 (d2), D9 (d3), D10 (d4)
• Tact Switch와 CDS Transistor에는 NANO 내부의 Pullup Resistor 사용. (No Need 10k Resistor)