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screen.lua

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+-- introduction IOT / UBS
+-- (c) Gildas Menier
+-- gildas.menier@univ-ubs.fr
+
+-- contient les définitions de
+-- cls()
+-- console()
+
+-- changer les valeurs qui suivent en fonction de 
+-- vos branchements
+
+-- GPIO pour I2C
+local sda = 18
+local scl = 19
+
+-- adresse ecran I2C
+i2cadd = 0x3C
+
+-- configuration
+local reset16 = false -- reset ecran
+i2c.setpins(0,sda,scl) -- config i2C
+
+-- ecran
+if reset16 then -- reset pour l'ecran si necessaire
+  pio.pin.setdir(pio.OUTPUT, pio.GPIO16);
+  pio.pin.setlow(pio.GPIO16)
+  tmr.delayms(50);
+  pio.pin.sethigh(pio.GPIO16)
+  tmr.delayms(50);
+end
+
+pcall( function() -- pas d'erreur
+    gdisplay.attach(gdisplay.SSD1306_128_64, gdisplay.LANDSCAPE, false, i2cadd)
+    gdisplay.clear()
+    gdisplay.setfont(gdisplay.FONT_LCD)
+    gdisplay.setwrap(false)
+end)
+
+local consolepos = 0
+local consoletab = {}
+local consolemax = 6
+
+local oledflip = 1
+
+function flip()
+  oledflip = oledflip+1; if oledflip > 3 then oledflip = 0 end
+  if oledflip==0 then
+     consolemax = 6
+     gdisplay.attach(gdisplay.SSD1306_128_64, gdisplay.LANDSCAPE_FLIP, false, i2cadd)
+  elseif oledflip==1 then
+     consolemax = 6
+     gdisplay.attach(gdisplay.SSD1306_128_64, gdisplay.LANDSCAPE, false, i2cadd)
+  elseif oledflip==2 then
+     consolemax = 13
+     gdisplay.attach(gdisplay.SSD1306_128_64, gdisplay.PORTRAIT, false, i2cadd)
+  else
+     consolemax = 13
+     gdisplay.attach(gdisplay.SSD1306_128_64, gdisplay.PORTRAIT_FLIP, false, i2cadd)
+  end    
+  cls()
+end
+
+function cls() 
+    if (consolemax==6) then gdisplay.clear()
+    else 
+        gdisplay.rect( {0,0}, 128, 9*consolemax, {0,0,0}, {0,0,0} )
+    end
+    if oledflip ~= 1 then gdisplay.clear() end
+    consolepos = 0
+    consoletab={}
+    for i=0, consolemax do
+         consoletab[i] = ""
+    end
+end
+
+function console(msg) 
+    if (consolepos <= consolemax) then
+        consoletab[consolepos] = msg
+        gdisplay.write({0, consolepos*9},msg)
+        consolepos = consolepos+1
+    else
+        for i = 1, consolemax do
+            consoletab[i-1] = consoletab[i]
+        end
+        consoletab[consolemax] = msg
+        if (consolemax==6) then gdisplay.clear()
+        else 
+            gdisplay.rect( {0,0}, 128, 9*consolemax+9, {0,0,0}, {0,0,0} )
+        end
+        for i=0, consolemax do
+            gdisplay.write({0, i*9},consoletab[i])
+        end
+    end
+end
+
+function top() 
+    local l = thread.list(true)
+    cls()
+    for k,v in pairs(l) do
+        console(l[k]["thid"].."  "..l[k]["name"].."  "..l[k]["used_stack"])
+    end
+end
+
+function fonts()
+  cls()
+  gdisplay.setfont(gdisplay.FONT_DEFAULT)
+  console("DEFAULT")
+  tmr.delay(5); cls()
+  gdisplay.setfont(gdisplay.FONT_DEJAVU18)
+  console("DEJAVU18")
+    tmr.delay(5); cls()
+  gdisplay.setfont(gdisplay.FONT_DEJAVU24)
+  console("DEJAVU24")
+    tmr.delay(5); cls()
+  gdisplay.setfont(gdisplay.FONT_UBUNTU16)
+  console("UBUNTU16")
+    tmr.delay(5); cls()
+  gdisplay.setfont(gdisplay.FONT_COMIC24)
+  console("COMIC24")
+    tmr.delay(5); cls()
+  gdisplay.setfont(gdisplay.FONT_TOONEY32)
+  console("TOONEY32")
+    tmr.delay(5); cls()
+  gdisplay.setfont(gdisplay.FONT_MINYA24)
+  console("MINYA24")
+    tmr.delay(5); cls()
+  gdisplay.setfont(gdisplay.FONT_7SEG)
+  console("7SEG")
+    tmr.delay(5); cls()
+  gdisplay.setfont(gdisplay.FONT_LCD)
+  console("LCD")
+end                                                            
+
+pcall( function()
+   cls()
+   console(">")
+end)