Merge pull request #44 from destroyedlolo/Experimental

LCD 2004 supported as well

README.md

@@ -64,6 +64,11 @@ Small system dashboard on a tiny **OLED** display.
 
 Display useful information on small and cheap **LCD** display with the capability to customize characters.
 
+
+![2004](Images/2004.jpg)
+
+20x04 **LCD** is supported as well.
+
 ---
 
 [docs directory](docs/) contains various ... documentations : installation procedures, API of plugins ...

SelenitesLCD/CharPos.sel

@@ -6,7 +6,7 @@ Selene.LetsGo() -- ensure late building dependencies
 
 
 	-- Init the screen handle
-	-- Suitable for my BananaPI under Gentoo
+	-- Suitable for my BananaPI under Arch/Gentoo
 local lcd = SelLCD.Init(1, 0x27, true, false)
 if not lcd then
 	lcd = SelLCD.Init(2, 0x27, true, false)
@@ -21,14 +21,23 @@ lcd:SetCursor(0,0)
 lcd:WriteString('Top')
 
 lcd:SetCursor(0,1)
-lcd:WriteString('Bottom')
+lcd:WriteString('Bottom1602')
 
 lcd:SetCursor(15,0)
 lcd:WriteString('v')
 
 lcd:SetCursor(15,1)
 lcd:WriteString('^')
 
+lcd:SetCursor(0,3)
+lcd:WriteString('Bottom2004')
+
+lcd:SetCursor(19,0)
+lcd:WriteString('V')
+
+lcd:SetCursor(19,3)
+lcd:WriteString('T')
+
 io.stdin:read'*l'
 
 lcd:Backlight(false)

src/SelPlugins/LCD/SelLCD.c

@@ -321,7 +321,7 @@ static void lcdc_SetDDRAM(struct LCDscreen *lcd, uint8_t pos){
  * @param screen point to the screen handle
  * @tparam uint8_t position (<80 otherwise reset to 0)
  */
-	if(pos > 79)
+	if(pos > 0xe8)
 		pos = 0;
 
 	selLCD.SendCmd(lcd, 0x80 | pos);
@@ -349,7 +349,20 @@ static void lcdc_SetCursor(struct LCDscreen *lcd, uint8_t x, uint8_t y){
  * Notez-bien : there is no boundary check. Up to the developer to know what
  *	it is doing.
  */
-	selLCD.SetDDRAM(lcd, y*0x40 + x);
+ 	uint8_t p;
+
+	switch(y){
+	case 1:
+		p = 0x40; break;
+	case 2:
+		p = 0x14; break;
+	case 3:
+		p = 0x54; break;
+	default:
+		p = 0x00;
+	}
+	p += x;
+	selLCD.SetDDRAM(lcd, p);
 }
 
 static int lcdl_SetCursor(lua_State *L){

src/include/Selene/SeleneVersion.h

@@ -60,4 +60,4 @@
  */
 
 	/* Version exposed to application (including Lua side) */
-#define SELENE_VERSION 8.0200	/* major, minor, sub */
+#define SELENE_VERSION 8.0300	/* major, minor, sub */