Sensor Kapasitif Untuk Saklar Sentuh Layar (Touchscreen)

Parts:

• R1,R2 1M 1/4W Resistors
• R3,R4 47K 1/4W Resistors
• C1 10µF 25V Electrolytic Capacitor
• C2 470pF 630V Ceramic or Polyester Capacitor
• D1-D3 1N4002 100V 1A Diodes
• Q1-Q3 BC337 45V 800mA NPN Transistors
• RL1 Relay with SPDT 2A @ 220V switch
• Coil Voltage 12V. Coil resistance 200-300 Ohm
• J1 Two ways output socket
• Sensor Aluminium or copper thin sheet with the dimensions of a post-card,
• glued at the rear of the same (approx. 15x10.5 cm.)
• Thin screened cable 

Source and details.

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- Hobi
- Sensor