Plug the RFID module into the breadboard with enough space around it. Connect the VCC pin to the Arduino's 3.3V (not 5V), and ...

Assume that you are moving towards a complex microcontroller project bundled with blinkers, beepers, and a display panel ... Reference circuit diagram of an Arduino-compatible LCD backpack is shown ...

I made the two soil probes using 5/16 x 2-inch full-thread steel bolts, 20-gauge wire ... I connected the LCD display according to a slightly modified design of Arduino's tutorial, with LCD ...