Follow the breadboard diagram shown next to build the distance measurement device. The diagram shown on the next page is quite complex. Take your time as you unravel through it. All the components (including the Arduino board) in this prototype are powered from the 9 volt battery.
Sometimes the LCD procured online might not ship with soldered header pins. In such a case, you will have to solder 16 header pins.
It is very important to note that unless the header pins are soldered properly into the LCD board, the LCD screen will not work correctly.
It is very important to note that unless the header pins are soldered properly into the LCD board, the LCD screen will not work correctly.
This is a very challenging prototype to get working in one go. Make sure there are no loose jumper wires.
Notice how the positive and negative terminals of the power source are plugged into the VIN and GND pins of the Arduino board respectively.
The 10K potentiometer has three legs. If you look straight...