|
@@ -0,0 +1,222 @@
|
|
|
+# ucg Module
|
|
|
+Ucglib is a graphics library developed at [olikraus/ucglib](https://github.com/olikraus/ucglib) with support for color TFT displays. The NodeMCU firmware supports a subset of these:
|
|
|
+
|
|
|
+- ILI9163
|
|
|
+- ILI9341
|
|
|
+- PCF8833
|
|
|
+- SEPS225
|
|
|
+- SSD1331
|
|
|
+- SSD1351
|
|
|
+- ST7735
|
|
|
+
|
|
|
+This integration is based on [v1.3.3](https://github.com/olikraus/Ucglib_Arduino/releases/tag/v1.3.3).
|
|
|
+
|
|
|
+## Overview
|
|
|
+
|
|
|
+### SPI Connection
|
|
|
+
|
|
|
+The HSPI module is used, so certain pins are fixed:
|
|
|
+
|
|
|
+* HSPI CLK = GPIO14
|
|
|
+* HSPI MOSI = GPIO13
|
|
|
+* HSPI MISO = GPIO12 (not used)
|
|
|
+
|
|
|
+All other pins can be assigned to any available GPIO:
|
|
|
+
|
|
|
+* CS
|
|
|
+* D/C
|
|
|
+* RES (optional for some displays)
|
|
|
+
|
|
|
+Also refer to the initialization sequence eg in [GraphicsTest.lua](https://github.com/nodemcu/nodemcu-firmware/blob/master/lua_examples/ucglib/GraphicsRest.lua):
|
|
|
+```lua
|
|
|
+spi.setup(1, spi.MASTER, spi.CPOL_LOW, spi.CPHA_LOW, 8, 8)
|
|
|
+```
|
|
|
+
|
|
|
+### Library Usage
|
|
|
+The Lua bindings for this library closely follow ucglib's object oriented C++ API. Based on the ucg class, you create an object for your display type.
|
|
|
+
|
|
|
+ILI9341 via SPI:
|
|
|
+```lua
|
|
|
+cs = 8 -- GPIO15, pull-down 10k to GND
|
|
|
+dc = 4 -- GPIO2
|
|
|
+res = 0 -- GPIO16, RES is optional YMMV
|
|
|
+disp = ucg.ili9341_18x240x320_hw_spi(cs, dc, res)
|
|
|
+```
|
|
|
+
|
|
|
+This object provides all of ucglib's methods to control the display.
|
|
|
+Again, refer to [GraphicsTest.lua](https://github.com/nodemcu/nodemcu-firmware/blob/master/lua_examples/ucglib/GraphicsTest.lua) to get an impression how this is achieved with Lua code. Visit the [ucglib homepage](https://github.com/olikraus/ucglib) for technical details.
|
|
|
+
|
|
|
+### Displays
|
|
|
+o get access to the display constructors, add the desired entries to the display table in [app/include/ucg_config.h](https://github.com/nodemcu/nodemcu-firmware/blob/master/app/include/ucg_config.h):
|
|
|
+```c
|
|
|
+#define UCG_DISPLAY_TABLE \
|
|
|
+ UCG_DISPLAY_TABLE_ENTRY(ili9341_18x240x320_hw_spi, ucg_dev_ili9341_18x240x320, ucg_ext_ili9341_18) \
|
|
|
+ UCG_DISPLAY_TABLE_ENTRY(st7735_18x128x160_hw_spi, ucg_dev_st7735_18x128x160, ucg_ext_st7735_18) \
|
|
|
+```
|
|
|
+
|
|
|
+### Fonts
|
|
|
+ucglib comes with a wide range of fonts for small displays. Since they need to be compiled into the firmware image, you'd need to include them in [app/include/ucg_config.h](https://github.com/nodemcu/nodemcu-firmware/blob/master/app/include/ucg_config.h) and recompile. Simply add the desired fonts to the font table:
|
|
|
+```c
|
|
|
+#define UCG_FONT_TABLE \
|
|
|
+ UCG_FONT_TABLE_ENTRY(font_7x13B_tr) \
|
|
|
+ UCG_FONT_TABLE_ENTRY(font_helvB12_hr) \
|
|
|
+ UCG_FONT_TABLE_ENTRY(font_helvB18_hr) \
|
|
|
+ UCG_FONT_TABLE_ENTRY(font_ncenR12_tr) \
|
|
|
+ UCG_FONT_TABLE_ENTRY(font_ncenR14_hr)
|
|
|
+```
|
|
|
+They'll be available as `ucg.<font_name>` in Lua.
|
|
|
+
|
|
|
+## Display Drivers
|
|
|
+
|
|
|
+Initialize a display via Hardware SPI.
|
|
|
+
|
|
|
+- `ili9163_18x128x128_hw_spi()`
|
|
|
+- `ili9341_18x240x320_hw_spi()`
|
|
|
+- `pcf8833_16x132x132_hw_spi()`
|
|
|
+- `seps225_16x128x128_univision_hw_spi()`
|
|
|
+- `ssd1351_18x128x128_hw_spi()`
|
|
|
+- `ssd1351_18x128x128_ft_hw_spi()`
|
|
|
+- `ssd1331_18x96x64_univision_hw_spi()`
|
|
|
+- `st7735_18x128x160_hw_spi()`
|
|
|
+
|
|
|
+#### Syntax
|
|
|
+`ucg.st7735_18x128x160_hw_spi(cs, dc, res)`
|
|
|
+
|
|
|
+#### Parameters
|
|
|
+- `cs`: GPIO pin for /CS.
|
|
|
+- `dc`: GPIO pin for DC.
|
|
|
+- `res`: GPIO pin for /RES (optional).
|
|
|
+
|
|
|
+#### Returns
|
|
|
+ucg display object.
|
|
|
+
|
|
|
+#### Example
|
|
|
+```lua
|
|
|
+spi.setup(1, spi.MASTER, spi.CPOL_LOW, spi.CPHA_LOW, spi.DATABITS_8, 0)
|
|
|
+
|
|
|
+cs = 8 -- GPIO15, pull-down 10k to GND
|
|
|
+dc = 4 -- GPIO2
|
|
|
+res = 0 -- GPIO16, RES is optional YMMV
|
|
|
+disp = ucg.st7735_18x128x160_hw_spi(cs, dc, res)
|
|
|
+```
|
|
|
+
|
|
|
+## Constants
|
|
|
+`ucg.FONT_MODE_TRANSPARENT`, `ucg.FONT_MODE_SOLID`, `ucg.DRAW_UPPER_RIGHT`,
|
|
|
+`ucg.DRAW_UPPER_LEFT`, `ucg.DRAW_LOWER_RIGHT`, `ucg.DRAW_LOWER_LEFT`, `ucg.DRAW_ALL`
|
|
|
+
|
|
|
+`ucg.font_7x13B_tr`, ...
|
|
|
+
|
|
|
+# ucg.disp Sub-Module
|
|
|
+
|
|
|
+## [ucg.disp:begin()](https://github.com/olikraus/ucglib/wiki/reference#begin)
|
|
|
+
|
|
|
+## [ucg.disp:clearScreen()](https://github.com/olikraus/ucglib/wiki/reference#clearscreen)
|
|
|
+
|
|
|
+## [ucg.disp:draw90Line()](https://github.com/olikraus/ucglib/wiki/reference#draw90line)
|
|
|
+
|
|
|
+## [ucg.disp:drawBox()](https://github.com/olikraus/ucglib/wiki/reference#drawbox)
|
|
|
+
|
|
|
+## [ucg.disp:drawCircle()](https://github.com/olikraus/ucglib/wiki/reference#drawcircle)
|
|
|
+
|
|
|
+## [ucg.disp:drawDisc()](https://github.com/olikraus/ucglib/wiki/reference#drawdisc)
|
|
|
+
|
|
|
+## [ucg.disp:drawFrame()](https://github.com/olikraus/ucglib/wiki/reference#drawframe)
|
|
|
+
|
|
|
+## [ucg.disp:drawGlyph()](https://github.com/olikraus/ucglib/wiki/reference#drawglyph)
|
|
|
+
|
|
|
+## [ucg.disp:drawGradientBox()](https://github.com/olikraus/ucglib/wiki/reference#drawgradientbox)
|
|
|
+
|
|
|
+## [ucg.disp:drawGradientLine()](https://github.com/olikraus/ucglib/wiki/reference#drawgradientline)
|
|
|
+
|
|
|
+## [ucg.disp:drawHLine()](https://github.com/olikraus/ucglib/wiki/reference#drawhline)
|
|
|
+
|
|
|
+## [ucg.disp:drawLine()](https://github.com/olikraus/ucglib/wiki/reference#drawline)
|
|
|
+
|
|
|
+## [ucg.disp:drawPixel()](https://github.com/olikraus/ucglib/wiki/reference#drawpixel)
|
|
|
+
|
|
|
+## [ucg.disp:drawRBox()](https://github.com/olikraus/ucglib/wiki/reference#drawrbox)
|
|
|
+
|
|
|
+## [ucg.disp:drawRFrame()](https://github.com/olikraus/ucglib/wiki/reference#drawrframe)
|
|
|
+
|
|
|
+## [ucg.disp:drawString()](https://github.com/olikraus/ucglib/wiki/reference#drawstring)
|
|
|
+
|
|
|
+## [ucg.disp:drawTetragon()](https://github.com/olikraus/ucglib/wiki/reference#drawtetragon)
|
|
|
+
|
|
|
+## [ucg.disp:drawTriangle()](https://github.com/olikraus/ucglib/wiki/reference#drawrtiangle)
|
|
|
+
|
|
|
+## [ucg.disp:drawVLine()](https://github.com/olikraus/ucglib/wiki/reference#drawvline)
|
|
|
+
|
|
|
+## [ucg.disp:getFontAscent()](https://github.com/olikraus/ucglib/wiki/reference#getfontascent)
|
|
|
+
|
|
|
+## [ucg.disp:getFontDescent()](https://github.com/olikraus/ucglib/wiki/reference#getfontdescent)
|
|
|
+
|
|
|
+## [ucg.disp:getHeight()](https://github.com/olikraus/ucglib/wiki/reference#getheight)
|
|
|
+
|
|
|
+## [ucg.disp:getStrWidth()](https://github.com/olikraus/ucglib/wiki/reference#getstrwidth)
|
|
|
+
|
|
|
+## [ucg.disp:getWidth()](https://github.com/olikraus/ucglib/wiki/reference#getwidth)
|
|
|
+
|
|
|
+## [ucg.disp:print()](https://github.com/olikraus/ucglib/wiki/reference#print)
|
|
|
+
|
|
|
+## [ucg.disp:setClipRange()](https://github.com/olikraus/ucglib/wiki/reference#setcliprange)
|
|
|
+
|
|
|
+## [ucg.disp:setColor()](https://github.com/olikraus/ucglib/wiki/reference#setcolor)
|
|
|
+
|
|
|
+## ucg.disp:setFont()
|
|
|
+ucglib comes with a wide range of fonts for small displays. Since they need to be compiled into the firmware image, you'd need to include them in [app/include/ucg_config.h](https://github.com/nodemcu/nodemcu-firmware/blob/master/app/include/ucg_config.h) and recompile. Simply add the desired fonts to the font table:
|
|
|
+```c
|
|
|
+#define UCG_FONT_TABLE \
|
|
|
+ UCG_FONT_TABLE_ENTRY(font_7x13B_tr) \
|
|
|
+ UCG_FONT_TABLE_ENTRY(font_helvB12_hr) \
|
|
|
+ UCG_FONT_TABLE_ENTRY(font_helvB18_hr) \
|
|
|
+ UCG_FONT_TABLE_ENTRY(font_ncenR12_tr) \
|
|
|
+ UCG_FONT_TABLE_ENTRY(font_ncenR14_hr)
|
|
|
+```
|
|
|
+They'll be available as `ucg.<font_name>` in Lua.
|
|
|
+
|
|
|
+#### Syntax
|
|
|
+`disp:setFont(font)`
|
|
|
+
|
|
|
+#### Parameters
|
|
|
+- `font`: Constant to identify pre-compiled font.
|
|
|
+
|
|
|
+#### Returns
|
|
|
+`nil`
|
|
|
+
|
|
|
+#### Example
|
|
|
+```lua
|
|
|
+disp:setFont(ucg.font_7x13B_tr)
|
|
|
+```
|
|
|
+
|
|
|
+#### See also
|
|
|
+- [ucglib setFont()](https://github.com/olikraus/ucglib/wiki/reference#setfont)
|
|
|
+
|
|
|
+## [ucg.disp:setFontMode()](https://github.com/olikraus/ucglib/wiki/reference#setfontmode)
|
|
|
+
|
|
|
+## [ucg.disp:setFontPosBaseline()](https://github.com/olikraus/ucglib/wiki/reference#setfontposbaseline)
|
|
|
+
|
|
|
+## [ucg.disp:setFontPosBottom()](https://github.com/olikraus/ucglib/wiki/reference#setfontposbottom)
|
|
|
+
|
|
|
+## [ucg.disp:setFontPosCenter()](https://github.com/olikraus/ucglib/wiki/reference#setfontposcenter)
|
|
|
+
|
|
|
+## [ucg.disp:setFontPosTop()](https://github.com/olikraus/ucglib/wiki/reference#setfontpostop)
|
|
|
+
|
|
|
+## [ucg.disp:setMaxClipRange()](https://github.com/olikraus/ucglib/wiki/reference#setmaxcliprange)
|
|
|
+
|
|
|
+## [ucg.disp:setPrintDir()](https://github.com/olikraus/ucglib/wiki/reference#setprintdir)
|
|
|
+
|
|
|
+## [ucg.disp:setPrintPos()](https://github.com/olikraus/ucglib/wiki/reference#setprintpos)
|
|
|
+
|
|
|
+## [ucg.disp:setRotate90()](https://github.com/olikraus/ucglib/wiki/reference#setrotate90)
|
|
|
+
|
|
|
+## [ucg.disp:setRotate180()](https://github.com/olikraus/ucglib/wiki/reference#setrotate180)
|
|
|
+
|
|
|
+## [ucg.disp:setRotate270()](https://github.com/olikraus/ucglib/wiki/reference#setrotate270)
|
|
|
+
|
|
|
+## [ucg.disp:setScale2x2()](https://github.com/olikraus/ucglib/wiki/reference#setscale2x2)
|
|
|
+
|
|
|
+## [ucg.disp:undoClipRange()](https://github.com/olikraus/ucglib/wiki/reference#undocliprange)
|
|
|
+
|
|
|
+## [ucg.disp:undoRotate()](https://github.com/olikraus/ucglib/wiki/reference#undorotate)
|
|
|
+
|
|
|
+## [ucg.disp:undoScale()](https://github.com/olikraus/ucglib/wiki/reference#undoscale)
|