<div style='font-size: 8px; text-align: center;'>U1</div><div style='font-size: 7px; text-align: center; margin-top: 50px;'><strong>Arduino<br/>UNO</strong></div><div style='font-size: 6px; position: absolute; left: 5px; top: 10px; line-height: 1.5;'>VIN<br/>5V<br/>3.3V<br/>REF<br/>RES<br/><br/>A0<br/>A1<br/>A2<br/>A3<br/>A4<br/>A5</div><div style='font-size: 6px; position: absolute; right: 5px; top: 10px; text-align: right; line-height: 1.5;'>RX<br/>TX<br/>D2<br/>D3<br/>D4<br/>D5<br/>D6<br/>D7<br/>D8<br/>D9<br/>D10<br/>D11<br/>D12<br/>D13</div>

<div style='font-size: 7px; text-align: center;'>SERVO</div>

<div style='font-size: 8px; text-align: center;'>ULN2003<br/>DRIVER</div>

<div style='font-size: 8px; text-align: center;'>PROXIMITY<br/>SENSOR</div>

<div style='font-size: 8px; text-align: center;'>IR OBSTACLE<br/>SENSOR</div>

<div style='font-size: 8px; text-align: center;'>RAIN<br/>SENSOR</div>

<div style='font-size: 7px; text-align: center;'>DISTULTRASONIC_SENSOR</div><div style='font-size: 12px; margin-top: 10px; text-align: center;'>(( )) (( ))</div>

<div style='font-size: 6px; text-align: center;'>SERVOSERVO2</div>

<div style='font-size: 6px; text-align: center;'>SERVOSERVO1</div>

diagram