Update readme

README.md

@@ -1,39 +1,32 @@
-st7789.py
+Python ST7789 driver for MicroPython
-=========
+====================================
 
 This is a fork of devbis' st7789py_mpy module from
 https://github.com/devbis/st7789py_mpy.
 
-I modified the original driver for one of my projects by adding support for
+This driver adds support for:
-display rotation, scrolling and drawing text using 8 and 16 bit wide bitmap
+
-fonts with heights that are multiples of 8.  Included are 12 bitmap fonts
+- 320x240, 240x240 and 135x240 pixel displays
-derived from classic pc text mode fonts and several example programs that run
+- Display rotation
-on the TTGO T-Display.
+- Hardware based scrolling
+- Drawing text using 8 and 16 bit wide bitmap fonts with heights that are
+  multiples of 8.  Included are 12 bitmap fonts derived from classic pc
+  BIOS text mode fonts.
+- Drawing text using converted TrueType fonts.
+- Drawing converted bitmaps
 
 This is a work in progress. Documentation can be found in the docs directory
-and at https://penfold.owt.com/st7789py
+and at https://penfold.owt.com/st7789py.
 
 
-Slow ST7789 driver for MicroPython
-==================================
-
-This is a slow MicroPython driver for 240x240 ST7789 display without CS pin
-from Ali Express. It also supports 135x240 TTGO Display
-
-
-The performance is quite low due to python function call overhead.
-If you have a chance to build firmware and you are using
-ESP8266/ESP32 controllers, you should try the fast driver
-https://github.com/devbis/st7789_mpy
-
 Examples
 --------
 
-    # ESP8266
+See the examples directory for example programs that run on the LILYGO® TTGO T-Display.
-    import machine
-    import st7789py
-    spi = machine.SPI(1, baudrate=40000000, polarity=1)
-    display = st7789py.ST7789(spi, 240, 240, reset=machine.Pin(5, machine.Pin.OUT), dc=machine.Pin(4, machine.Pin.OUT))
-    display.init()
-    display.pixel(120, 120, st7789py.YELLOW)
 
+Fonts
+-----
+
+See the subdirectories in the fonts directory for the converted font modules
+used in the examples. These modules can be compiled using the mpy-cross
+compiler before uploading to save memory.