The remaining phases-"waxing crescent," "waxing gibbous," "waning gibbous," and "waxing gibbous"-mark the timeframes between the primary phases (don't worry, we'll define these terms soon). (For those of us in the Northern Hemisphere, the moon travels in a counterclockwise orbit.) Each of these primary moon phases marks a quarter of the lunar cycle and lasts only a moment. Think of the phases labeled "new moon," "first quarter," "full moon," and "third quarter" as the numbers 12, 9, 6, and 3 on a clock, respectively. Understanding All the Moon Phases in Order… Let's Look at a Diagram!īefore we delve into each phase individually, let's take a moment to orient ourselves in the moon phases diagram below, beginning with imagining Earth at the center of this illustration and the sun adjacent to the new moon. Here's your guide to the eight moon phases. What changes is how much of the illuminated portion of the moon we can see from Earth as the moon moves in its orbit. The first thing to understand, though, is that one side of the moon is always fully lit by the sun. But if you learn the moon phases, you can wager a pretty good guess no matter where we are in the lunar cycle just by observing the moon and doing the math.Īnother plus? You'll better understand other astronomical events, such as solar eclipses, which happen only during a new moon phase, and lunar eclipses, which happen only during a full moon phase. In my opinion, drawing directly on the screen gave more flexibility to use, but inevitably more difficulties in its construction.How do we know when the next full moon is? We can consult an almanac, the Internet, or our handy full moon calendar, of course. Using a bipmap for each phase requires a lot of preparation before (finding the images, downloading them, reducing them, turning them into RGB565) and I think it is within the reach of everyone. I think it's a Lunix command and I'm running windows XP Can be easily adapted to other formats as well.įor more info on how it all work use this command: man netpbm, the individual scripts also have their own man page. Change the xy values as needed (the 1024x1024 bounding box is of course too big for your screen). small subdirectory, then run it, and you have smaller. Put all the jpgs in a directory, create a. Wvmarle: ls *.jpg *.JPG 2> /dev/null | while read fĬat "$f" | jpegtopnm 2> /dev/null | pnmscale -xysize 1024 1024 | pnmtojpeg -optimise > small/"$f" Now I would have to round the edge DARK / LIGHT, put curves to get a crescent. (google translate "the color of the wallpaper" when I mind "backgroud color" LOL) Now I have a dark color different from the color of wallpaper. My first sketch drew a filled circle and was partially covered by a rectangle of the color of the wallpaper and a circle drew on filled circle and rectangle. My sketch is a quick draft made, not optimized, because not final. Hello every body and thank you very much for your help. #include // Use the official SD library on hardware pins copy all your BMP files to the root directory on the microSD with your PC The official library only works on the hardware SPI pins They include an example to show bitmaps from an SD card: prenticedavid/MCUFRIEND_kbv/blob/master/examples/showBMP_kbv_Uno/showBMP_kbv_Uno.ino // MCUFRIEND UNO shields have microSD on pins 10, 11, 12, 13 I have ILI9341 screen 240 x 320 and use mcufriend_kbv librairy That script just takes all JPG files in the current folder and creates smaller versions of them in the. Sorry, I do not understand your simple shell script. It is not subject in this post, but Does the moon look the same in different countries? Next step, understand How can do better sketch for nicer moon phases. #define LCD_RESET A4 // Can alternately just connect to Arduino's reset pin #define LCD_RD A0 // LCD Read goes to Analog 0 #define LCD_WR A1 // LCD Write goes to Analog 1 #define LCD_CD A2 // Command/Data goes to Analog 2 #define LCD_CS A3 // Chip Select goes to Analog 3 #include "Adafruit_GFX.h"// Hardware-specific library From "Adafruit_GFX.cpp" I write this sketch, but it is not exactly what I want.
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