Hi again from old man in SC, I saw a radar screen the other day and liked it. The problem is you need to download a special screen app to run it. You need to be connected to your computer through this app. And the screen uses a clear plastic overlay for the scale. So I had some 5110 (84x48) glcds and made this. Ok right off the bat it isnt radar...its sonar. Second the screen is not a curved layout with a fancy colored display. And the distance of either radars is less than 150cm. I tried to get the 'NEWPING' library to go farther but it just isnt consistant with this type of ultra sonic sensor. There are long range sensors available. The above picture is a cabinet on the left about 20cm away, nothing close in the center (blank), and me sitting 60cm away on the right. Maximum scale is about 200cm. About 30cm per division with closer objects at the bottom (fuller screen). So bottom is 1cm and no echo is over 220cm, top of screen. I like to let you know what to expect before you build my projects and go over some of my mistakes. I almost gave up on this project because of false echoes filling the screen. In the sketch, I moved the delay() to various places to offset the movement of the servo. And if the servo was off the screen showed perfect reflections. I changed every possiable setting in the sketch and never got the servo movment with good echoes. Two weeks later I gave up and started to take this appart and then I tried a seperate power supply for the servo. I tied the grounds together with seperate Vcc. Finally...good clean echoes during servo movement. You can expect a distance of 200cm tops with best results around 130cm. The other mistake was to use 5v for the glcd even though it is stamped 3v~5v. I got eratic startups, jumbled screens, and no displays. After going to 3.3v all displays are all good now. The build is easy. 1-any ARDUINO board 2-any GLCD 5110 84X48 lcd 3-any servo 3 pins 4-any sonic sensor HC-SR04 5- TWO separate 5v supplies a must Hook as showen. I played with several graphic lcd libraries. As with many libraries they just wont work or they are too complex or no explination on how to use them. The 'PCD8544' is a grand exception. It downloaded, ran, and had detailed instructions. You can do text or bitmaps so easily. The only part not covered is to paste a bitmap to the sketch (near the top above the setup) and use library '#include ' and use 'const byte ANYNAME[] PROGMEM = ' for the array that you pasted' The bitmaps are 504 bytes so the array is that big. This has nothing to do with this project but if you are first time with a glcd you cant STOP playing with them, this is a start !!! Install sketch. May need to change lcd.Setcontrast(value); The range is between 1-127. One is light and 100 is very dark. the screen is inverted in black+white so a higher value gives a white screen. if you dont get a good screen change lcd.setInverse(1); to 0 for a normal screen with pixels as dark on white background. Find a good contrast and change back inverse to 0. The sweep changes speed because 'NEWPING' waits for a ping. If it gets a close ping it moves on. A distant ping makes it wait for an echo, which takes time. So the sweep changes speed. This was a fun project thanks for viewing... please see my 'led on glass and time squared' they dont look good in 2d but in 3d in person they are show stopers. Anyone who has seen them have been amazed. My next project is a oil change, trip odometer, MPH display for my old truck with a broken speed-odometer.