Add files via upload

Nextion_EA5SW/Nextion_config_files/config_files.md

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+info.ini
+ctrl.ini
+tg.ini
+prefixA.ini
+prefixB.ini
+prefixC.ini

Nextion_EA5SW/Nextion_config_files/ctrl.ini

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+EA5SW
+1
+99998
+99999
+99997
+99996
+99995

Nextion_EA5SW/Nextion_config_files/info.ini

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+EA5SW
+Valencia-IM99TK
+439.9625
+BrandMeister

Nextion_EA5SW/Nextion_config_files/prefixA.ini

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+EA0
+EA1
+EA2
+EA3
+EA4
+EA5
+EA6
+EA7
+EA8
+EA9

Nextion_EA5SW/Nextion_config_files/prefixB.ini

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+EB0
+EB1
+EB2
+EB3
+EB4
+EB5
+EB6
+EB7
+EB8
+EB9

Nextion_EA5SW/Nextion_config_files/prefixC.ini

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+EC0
+EC1
+EC2
+EC3
+EC4
+EC5
+EC6
+EC7
+EC8
+EC9

Nextion_EA5SW/Nextion_config_files/tg.ini

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Nextion_EA5SW/Nextion_files.md

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+EA5SW_24.HMI source file for Layout Nextion 2.4
+EA5SW_24.tft compiled file for Layout Nextion 2.4
+EA5SW_32.HMI source file for Layout Nextion 3.2
+EA5SW_32.tft compiled file for Layout Nextion 3.2
+EA5SW_35.HMI source file for Layout Nextion 3.5
+EA5SW_35.tft compiled file for Layout Nextion 3.5

Nextion_EA5SW/README.md

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+# Update Nextion Displays from the Command Line
+
+This directory contains a simple python script which you can use to update the
+Nextion displays. All you need is a compiled .tft file which is written to the
+display's flash memory. The precompiled .tft files with the MMDVMHost default
+layout are to be found in this directory as well.
+
+To update the Nextion display you just need to know the serial port the display
+is connected to. It could be /dev/ttyUSBx for USB<->Serial adapters or
+/dev/ttyAMA0 for the UART on the Raspberry Pi for example.
+
+# Prerequisites
+
+You need to have python installed as well as the python-serial package. That can
+normally be found in your distro's package manager.
+
+# File Naming Convention
+
+There are compiled .tft files in the repo for basic and enhanced Nextion
+displays of sizes 2.4", 2.8", 3.2" and 3.5". Please choose depending on the
+model number printed on the back of the display. 
+
+The basic displays are denoted by a "T" as 7th character in the filename and
+model number whereas enhanced displays have a "K" in that position. The actual
+display size can be derived from the last two digits. The four digits in between
+the characters refert to the diplay's resolution.
+
+For example: A model number NX4832T035 represents a display with:
+
+ - a resolution of 320x480 pixels
+ - basic command set
+ - a screen size of 3.5"
+
+# Updating the Display
+
+Now comes the easy part. Just execute:
+
+```
+$ python nextion.py NX4832T035.tft /dev/ttyUSB0
+```
+
+And the output should be as follows:
+
+```
+Trying with baudrate: 2400...
+Trying with baudrate: 4800...
+Trying with baudrate: 9600...
+Connected with baudrate: 9600...
+Status: comok
+Touchscreen: yes
+Model: NX4832T035_011R
+Firmware version: 68
+MCU code: 61488
+Serial: D2658880C35D2124
+Flash size: 16777216
+Downloading, 100%...
+File transferred successfully
+```
+
+# Known errors
+
+Especially when using USB<->Serial adapters there are cases in which the scripts
+stops at different times. This is known and due to the very simple update
+protocol. In this case you have to fix the display by using a SD-Card to update
+the display. The /dev/ttyAMAx ports do not seems to suffer from this issue.
+

Nextion_EA5SW/nextion.py

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+'''
+ *   Copyright (C) 2016 Alex Koren
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+'''
+
+import serial
+import time
+import sys
+import os
+import re
+
+e = "\xff\xff\xff"
+
+def getBaudrate(ser, fSize=None, checkModel=None):
+    for baudrate in (2400, 4800, 9600, 19200, 38400, 57600, 115200):
+        ser.baudrate = baudrate
+        ser.timeout = 3000 / baudrate + .2
+        print 'Trying with baudrate: ' + str(baudrate) + '...'
+        ser.write("\xff\xff\xff")
+        ser.write('connect')
+        ser.write("\xff\xff\xff")
+        r = ser.read(128)
+        if 'comok' in r:
+            print 'Connected with baudrate: ' + str(baudrate) + '...'
+            noConnect = False
+            status, unknown1, model, fwversion, mcucode, serial, flashSize = r.strip("\xff\x00").split(',')
+            print 'Status: ' + status.split(' ')[0]
+            if status.split(' ')[1] == "1":
+                print 'Touchscreen: yes'
+            else:
+                print 'Touchscreen: no'
+            print 'Model: ' + model
+            print 'Firmware version: ' + fwversion
+            print 'MCU code: ' + mcucode
+            print 'Serial: ' + serial
+            print 'Flash size: ' + flashSize
+            if fSize and fSize > flashSize:
+                print 'File too big!'
+                return False
+            if checkModel and not checkModel in model:
+                print 'Wrong Display!'
+                return False
+            return True
+    return False
+
+def setDownloadBaudrate(ser, fSize, baudrate):
+    ser.write("")
+    ser.write("whmi-wri " + str(fSize) + "," + str(baudrate) + ",0" + e)
+    time.sleep(.05)
+    ser.baudrate = baudrate
+    ser.timeout = .5
+    r = ser.read(1)
+    if "\x05" in r:
+        return True
+    return False
+
+def transferFile(ser, filename, fSize):
+    with open(filename, 'rb') as hmif:
+        dcount = 0
+        while True:
+            data = hmif.read(4096)
+            if len(data) == 0:
+                break
+            dcount += len(data)
+            ser.timeout = 5
+            ser.write(data)
+            sys.stdout.write('\rDownloading, %3.1f%%...'% (dcount / float(fSize) * 100.0))
+            sys.stdout.flush()
+            ser.timeout = .5
+            time.sleep(.5)
+            r = ser.read(1)
+            if "\x05" in r:
+                continue
+            else:
+                print
+                return False
+                break
+        print
+    return True
+
+def upload(ser, filename, checkModel=None):
+    if not getBaudrate(ser, os.path.getsize(filename), checkModel):
+        print 'Could not find baudrate'
+        exit(1)
+
+    if not setDownloadBaudrate(ser, os.path.getsize(filename), 115200):
+        print 'Could not set download baudrate'
+        exit(1)
+
+    if not transferFile(ser, filename, os.path.getsize(filename)):
+        print 'Could not transfer file'
+        exit(1)
+
+    print 'File transferred successfully'
+    exit(0)
+
+if __name__ == "__main__":
+    if len(sys.argv) != 4 and len(sys.argv) != 3:
+        print 'usage:\npython nextion.py file_to_upload.tft /path/to/dev/ttyDevice [nextion_model_name]\
+        \nexample: nextion.py newUI.tft /dev/ttyUSB0 NX3224T024\
+        \nnote: model name is optional'
+        exit(1)
+
+    try:
+        ser = serial.Serial(sys.argv[2], 9600, timeout=5)
+    except serial.serialutil.SerialException:
+        print 'could not open serial device ' + sys.argv[2]
+        exit(1)
+    if serial.VERSION <= "3.0":
+        if not ser.isOpen():
+            ser.open()
+    else:
+        if not ser.is_open:
+            ser.open()
+
+    checkModel = None
+    if len(sys.argv) == 4:
+        checkModel = sys.argv[3]
+        pattern = re.compile("^NX\d{4}[TK]\d{3}$")
+        if not pattern.match(checkModel):
+            print 'Invalid model name. Please give a correct one (e.g. NX3224T024)'
+            exit(1)
+    upload(ser, sys.argv[1], checkModel)