HCSR04-Ultrasonic Sensor | Code | Circuit | Pin configuration
LCD(16x2)-Interface | Code | Circuit  |Pin configuration | Program
16x2 LCD Display | Code | Circuit  |Pin configuration | Specifications
Arduino Uno | Pin Configuration | Description |How to use
ATMEGA328P | specifications | user manual | pin configuration
POWER RESISTOR | Model number | Types | Datadheet
 3006P-103 Trim-Pot
TrimPot | Preset |Types
X9C103S-Digital Potentiometer
SMD-Resistor | Resistance code | Tolerance