Updated NSPanel Nextion Editor (markdown)

NSPanel-Nextion-Editor.md

@@ -23,7 +23,158 @@ Nachdem nun der ESP wieder erreichbar ist, prüft man in den Einstellungen unter
 
 Anschließend installiert man den Berry-Treiber und konfiguriert MQTT (nach der Anleitung hier im Wiki: https://github.com/joBr99/nspanel-lovelace-ui/wiki/ioBroker---Basisinstallation#3-berry-treiber-installieren).
 
-**ACHTUNG:** Nicht den Berry Treiber hier aus dem Wiki nehmen, sondern hier aus dem nachfolgenden Forenbeitrag von joBr99: https://forum.iobroker.net/topic/50888/sonoff-nspanel/451 (Dort steht diese Anleitung auch nochmals verkürzt).
+**ACHTUNG:** Nicht den Berry Treiber hier aus dem Wiki nehmen, sondern hier aus dem nachfolgenden Code-Block
+
+```
+# Nextion Serial Protocol driver by joBr99 + nextion upload protocol 1.2 (the fast one yay) implementation using http range and tcpclient
+# based on;
+# Sonoff NSPanel Tasmota driver v0.47 | code by blakadder and s-hadinger
+ 
+class Nextion : Driver
+ 
+    var ser
+	var flash_size
+	var flash_mode
+	var flash_skip
+	var flash_current_byte
+	var tftd
+	var progress_percentage_last
+	static header = bytes('55BB')
+ 
+    def init()
+        log("NSP: Initializing Driver")
+        self.ser = serial(3, 1, 115200, serial.SERIAL_8N1)
+        self.flash_mode = 0
+		self.flash_skip = false
+		tasmota.add_driver(self)
+    end
+	
+    def crc16(data, poly)
+      if !poly  poly = 0xA001 end
+      # CRC-16 MODBUS HASHING ALGORITHM
+      var crc = 0xFFFF
+      for i:0..size(data)-1
+        crc = crc ^ data[i]
+        for j:0..7
+          if crc & 1
+            crc = (crc >> 1) ^ poly
+          else
+            crc = crc >> 1
+          end
+        end
+      end
+      return crc
+    end
+	
+    def split_55(b)
+      var ret = []
+      var s = size(b)   
+      var i = s-2   # start from last
+      while i > 0
+        if b[i] == 0x55 && b[i+1] == 0xBB           
+          ret.push(b[i..s-1]) # push last msg to list
+          b = b[(0..i-1)]   # write the rest back to b
+        end
+        i -= 1
+      end
+      ret.push(b)
+      return ret
+    end
+ 
+	# encode using custom protocol 55 BB [payload length] [payload] [crc] [crc]
+    def encode(payload)
+      var b = bytes()
+      b += self.header
+      b.add(size(payload), 2)   # add size as 1 byte
+      b += bytes().fromstring(payload)
+      var msg_crc = self.crc16(b)
+      b.add(msg_crc, 2)       # crc 2 bytes, little endian
+      return b
+    end
+	
+	# send a nextion payload
+	def encodenx(payload)
+		var b = bytes().fromstring(payload)
+		b += bytes('FFFFFF')
+		return b
+	end
+	
+	def sendnx(payload)
+		var payload_bin = self.encodenx(payload)
+		self.ser.write(payload_bin)
+		 print("NSP: Sent =", payload_bin)
+		log("NSP: Nextion command sent = " + str(payload_bin), 3)
+	end
+  
+    def send(payload)
+        var payload_bin = self.encode(payload)
+        if self.flash_mode==1
+            log("NSP: skipped command becuase still flashing", 3)
+        else 
+            self.ser.write(payload_bin)
+            log("NSP: payload sent = " + str(payload_bin), 3)
+        end
+    end
+		
+	def every_100ms()
+        import string
+        if self.ser.available() > 0
+            var msg = self.ser.read()
+            if size(msg) > 0
+                print("NSP: Received Raw =", msg)
+                if self.flash_mode==1
+                    log("no flashing in this version")
+                else
+					# Recive messages using custom protocol 55 BB [payload length] [payload length] [payload] [crc] [crc]
+					if msg[0..1] == self.header
+						var lst = self.split_55(msg)
+						for i:0..size(lst)-1
+							msg = lst[i]
+							#var j = msg[2]+2
+							var j = size(msg) - 3
+							msg = msg[4..j]
+							if size(msg) > 2
+								var jm = string.format("{\"CustomRecv\":\"%s\"}",msg.asstring())
+								tasmota.publish_result(jm, "RESULT")
+							end
+						end
+					elif msg == bytes('000000FFFFFF88FFFFFF')
+						log("NSP: Screen Initialized")
+					else
+                        var jm = string.format("{\"nextion\":\"%s\"}",str(msg[0..-4]))
+						tasmota.publish_result(jm, "RESULT")
+					end       			
+                end
+            end
+        end
+    end
+end
+ 
+var nextion = Nextion()
+
+def get_current_version(cmd, idx, payload, payload_json)
+    import string
+    var version_of_this_script = 8
+    var jm = string.format("{\"nlui_driver_version\":\"%s\"}", version_of_this_script)
+    tasmota.publish_result(jm, "RESULT")
+end
+
+tasmota.add_cmd('GetDriverVersion', get_current_version)
+ 
+def send_cmd(cmd, idx, payload, payload_json)
+    nextion.sendnx(payload)
+    tasmota.resp_cmnd_done()
+end
+ 
+tasmota.add_cmd('Nextion', send_cmd)
+ 
+def send_cmd2(cmd, idx, payload, payload_json)
+    nextion.send(payload)
+    tasmota.resp_cmnd_done()
+end
+ 
+tasmota.add_cmd('CustomSend', send_cmd2)
+```  
 
 Nachdem die autoexec.be erstellt wurde, den ESP32 einmal rebooten und nun MQTT einrichten. Ich habe hierbei anstelle der Nummerierung der NSPanels DEV geschrieben, also NSPanel_DEV als client und topic.