b"TROUBLESHOOTINGAdjust the contrast by twisting the potentiometer. Try both The screen is blank ordirections until you see characters display. Do not twist flickering the potentiometer past its stopping points. Also, check the potentiometer, and make sure it's wired correctly.Double check the circuits wiring. There are a lot of wires in Not working at allthis circuit, and its easy to mix up one or two.If you see 16 rectangles (like) on the first row, it may be due to the jumper wires being loose on the breadboard. This is normal and can happen with other LCDs wired in parallel with Rectangles in first rowa microcontroller. Make sure that the wires are fully inserted into the breadboard, then try pressing the reset button and adjusting the contrast using the potentiometer.Jumper wires unfortunately can go bad from getting bent too much. The copper wire inside can break, leaving an open connection in your circuit. If youre certain that your circuit is Still not working?wired correctly and that your code is error-free and uploaded but you are still encountering issues, try replacing one or more of the jumper wires for the component that is not working.Youve completed Circuit 4A!Continue to circuit 4B to learn about using temperature sensors.LCD HELLO, WORLD TEMPERATURE SENSOR DIY WHO AM I GAMEA B C76 : circuit 4a"