Merge branch 'main' of https://github.com/programmer372/micropython-nextion into main

Author: gheinzer

README.md

@@ -2,10 +2,26 @@
  This library will help you control you nextion-display over UART.
 ## How to use
 First, define an object with the class `nextion(tx_pin, rx_pin, baudrate)`
-This could look like this now:
-`from nextion import nextion
-display = nextion(13, 12, 9600)`
+This could look like this now:<br>
+`from nextion import nextion<br>
+display = nextion(13, 12, 9600)`<br>
 Now you can control the device with different commands.
+## Constants
+- `nextion.WRITE_ONLY`
+- `nextion.READ_AND_WRITE`
 ## Functions
 ### cmd
-The code to send a 
+You can send a command over serial to the device using `display.cmd(command`[ , flags=nextion.READ_AND_WRITE])`<br>
+- `command`: the command to send to the device
+- `flags`: You can insert `nextion.WRITE_ONLY`, when you don't want to read the reply from UART. By default, the function is waiting 100 ms and then, the function returns the reply.
+### sleep
+To enter or exit sleep mode of the nextion device, use the command `display.sleep(state)`<br>
+- `state`: Set the parameter to 1 for enter sleep mode. Set the parameter to 0 for exit sleep mode.
+### page
+To load a page on the nextion device, use the command `display.page(pageid)`<br>
+- `pageid`: ID of the page or name of the page.
+### reset
+You can reset the device using the command `display.reset()`
+### brightness
+To set the display brightness use the command `display.brightness(brightness)`<br>
+- `brightness`: Brightness to set in percent