diff --git a/examples/Unit/LoRaWAN868/LoRaWAN868.ino b/examples/Unit/LoRaWAN868/LoRaWAN868.ino
index 17fd698..52b3174 100644
--- a/examples/Unit/LoRaWAN868/LoRaWAN868.ino
+++ b/examples/Unit/LoRaWAN868/LoRaWAN868.ino
@@ -20,107 +20,107 @@ M5Canvas canvas(&display);
 
 String waitRevice()
 {
-    String recvStr;
-    do
-    {
-        recvStr = Serial2.readStringUntil('\n');
-    } while (recvStr.length() == 0);
-    canvas.println(recvStr);
-    return recvStr;
+  String recvStr;
+  do
+  {
+      recvStr = Serial2.readStringUntil('\n');
+  } while (recvStr.length() == 0);
+  canvas.println(recvStr);
+  return recvStr;
 }
 
 uint16_t ypos = 55;
 
 void drawLineStr(String str, uint16_t color)
 {
-    M5.Lcd.setTextColor(color);
-    M5.Lcd.drawString(str, 10, ypos, 4);
-    ypos += 32;
+  M5.Lcd.setTextColor(color);
+  M5.Lcd.drawString(str, 10, ypos, 4);
+  ypos += 32;
 }
 
 
 void sendATCMD(String cmdStr)
 {
-    Serial2.print(cmdStr);
-    delay(100);
+  Serial2.print(cmdStr);
+  delay(100);
 }
 
 int sendATCMDAndRevice(String cmdStr)
 {
-    Serial2.print(cmdStr);
-    delay(10);
-    waitRevice();
-    String recvStr = waitRevice();
-    if (recvStr.indexOf("OK") != -1)
-    {
-      return 0;
-    }
-    else
-    {
-      return -1;
-    }
+  Serial2.print(cmdStr);
+  delay(10);
+  waitRevice();
+  String recvStr = waitRevice();
+  if (recvStr.indexOf("OK") != -1)
+  {
+    return 0;
+  }
+  else
+  {
+    return -1;
+  }
 }
 
 void setup()
 {
-    M5.begin();
-    Serial2.begin(115200, SERIAL_8N1, 16, 17);
-    Serial2.flush();
-    delay(100);
-    display.begin();
-    display.setTextSize(2);
-    canvas.setColorDepth(1); // mono color
-    canvas.createSprite(display.width(), display.height());
-    canvas.setTextSize((float)canvas.width() / 160);
-    canvas.setTextScroll(true);
+  M5.begin();
+  Serial2.begin(115200, SERIAL_8N1, 16, 17);
+  Serial2.flush();
+  delay(100);
+  display.begin();
+  display.setTextSize(2);
+  canvas.setColorDepth(1); // mono color
+  canvas.createSprite(display.width(), display.height());
+  canvas.setTextSize((float)canvas.width() / 160);
+  canvas.setTextScroll(true);
 
-    sendATCMD("AT?\r");
-    delay(100);
-    Serial2.flush();
-    sendATCMDAndRevice("AT+ILOGLVL=0\r");
-    sendATCMDAndRevice("AT+CSAVE\r");
-    sendATCMDAndRevice("AT+IREBOOT=0\r");
-    display.println("LoraWan Rebooting");
-    delay(2000);
-    display.println("LoraWan config");
-    sendATCMDAndRevice("AT+CJOINMODE=0\r");
-    sendATCMDAndRevice("AT+CDEVEUI=00BB9DA5B97ADDF6\r");
-    sendATCMDAndRevice("AT+CAPPEUI=70B3D57ED004247E\r");//70B3D57ED003B699
-    sendATCMDAndRevice("AT+CAPPKEY=27DFE264CA33AC1957C005EB48BA4723\r");
-    sendATCMDAndRevice("AT+CULDLMODE=2\r");
-    sendATCMDAndRevice("AT+CCLASS=2\r");
-    sendATCMDAndRevice("AT+CWORKMODE=2\r");
-    sendATCMDAndRevice("AT+CNBTRIALS=0,5\r");
-    sendATCMDAndRevice("AT+CNBTRIALS=1,5\r");
+  sendATCMD("AT?\r");
+  delay(100);
+  Serial2.flush();
+  sendATCMDAndRevice("AT+ILOGLVL=0\r");
+  sendATCMDAndRevice("AT+CSAVE\r");
+  sendATCMDAndRevice("AT+IREBOOT=0\r");
+  display.println("LoraWan Rebooting");
+  delay(2000);
+  display.println("LoraWan config");
+  sendATCMDAndRevice("AT+CJOINMODE=0\r");
+  sendATCMDAndRevice("AT+CDEVEUI=00BB9DA5B97ADDF6\r");
+  sendATCMDAndRevice("AT+CAPPEUI=70B3D57ED004247E\r");//70B3D57ED003B699
+  sendATCMDAndRevice("AT+CAPPKEY=27DFE264CA33AC1957C005EB48BA4723\r");
+  sendATCMDAndRevice("AT+CULDLMODE=2\r");
+  sendATCMDAndRevice("AT+CCLASS=2\r");
+  sendATCMDAndRevice("AT+CWORKMODE=2\r");
+  sendATCMDAndRevice("AT+CNBTRIALS=0,5\r");
+  sendATCMDAndRevice("AT+CNBTRIALS=1,5\r");
 
-    // TX Freq
-    // 868.1 - SF7BW125 to SF12BW125
-    // 868.3 - SF7BW125 to SF12BW125 and SF7BW250
-    // 868.5 - SF7BW125 to SF12BW125
-    // 867.1 - SF7BW125 to SF12BW125
-    // 867.3 - SF7BW125 to SF12BW125
-    // 867.5 - SF7BW125 to SF12BW125
-    // 867.7 - SF7BW125 to SF12BW125
-    // 867.9 - SF7BW125 to SF12BW125
-    // 868.8 - FSK
+  // TX Freq
+  // 868.1 - SF7BW125 to SF12BW125
+  // 868.3 - SF7BW125 to SF12BW125 and SF7BW250
+  // 868.5 - SF7BW125 to SF12BW125
+  // 867.1 - SF7BW125 to SF12BW125
+  // 867.3 - SF7BW125 to SF12BW125
+  // 867.5 - SF7BW125 to SF12BW125
+  // 867.7 - SF7BW125 to SF12BW125
+  // 867.9 - SF7BW125 to SF12BW125
+  // 868.8 - FSK
 
-    sendATCMDAndRevice("AT+CFREQBANDMASK=0001\r");
+  sendATCMDAndRevice("AT+CFREQBANDMASK=0001\r");
 
-    //869.525 - SF9BW125 (RX2)              | 869525000
-    //sendATCMDAndRevice("AT+CRXP=0,0,869525000\r");
+  //869.525 - SF9BW125 (RX2)              | 869525000
+  //sendATCMDAndRevice("AT+CRXP=0,0,869525000\r");
 
-    sendATCMDAndRevice("AT+CSAVE\r");
-    
-    sendATCMDAndRevice("AT+CJOIN=1,0,10,8\r");
+  sendATCMDAndRevice("AT+CSAVE\r");
+  
+  sendATCMDAndRevice("AT+CJOIN=1,0,10,8\r");
 }
 
 enum systemstate
 {
-    kIdel = 0,
-    kJoined,
-    kSending,
-    kWaitSend,
-    kEnd,
+  kIdel = 0,
+  kJoined,
+  kSending,
+  kWaitSend,
+  kEnd,
 };
 int system_fsm = kIdel;
 
@@ -131,93 +131,93 @@ int loraWanupLinkReviceCNT = 0;
 
 void loop()
 {
-    String recvStr = waitRevice();
-    if (recvStr.indexOf("+CJOIN:") != -1)
+  String recvStr = waitRevice();
+  if (recvStr.indexOf("+CJOIN:") != -1)
+  {
+    if (recvStr.indexOf("OK") != -1)
     {
-        if (recvStr.indexOf("OK") != -1)
-        {
-            canvas.println("[ INFO ] JOIN IN SUCCESSFUL");
-            system_fsm = kJoined;
-        }
-        else
-        {
-            canvas.println("[ INFO ] JOIN IN FAIL");
-            system_fsm = kIdel;
-        }
+        canvas.println("[ INFO ] JOIN IN SUCCESSFUL");
+        system_fsm = kJoined;
     }
-    else if (recvStr.indexOf("OK+RECV") != -1)
+    else
     {
-        if (system_fsm == kJoined)
-        {
-            system_fsm = kSending;
-        }
-        else if (system_fsm == kWaitSend)
-        {
-            system_fsm = kEnd;
-            char strbuff[128];
-            loraWanupLinkReviceCNT ++;
-
-            //if(( loraWanSendCNT < 5 )&&( loraWanSendNUM == 8 ))
-            //{
-            //    loraWanupLinkReviceCNT ++;
-            //    sprintf(strbuff,"SEND CNT: %d (%d/%d)",loraWanSendCNT,loraWanupLinkReviceCNT,loraWanupLinkCNT);
-            //    M5.Lcd.fillRect(0,183,320,32,TFT_BLACK);
-            //    M5.Lcd.setTextColor(TFT_GREEN);
-            //    M5.Lcd.drawString(strbuff, 10, 183, 4);
-            //    //drawLineStr(strbuff, TFT_GREEN);
-            //    
-            //}
-            //else
-            //{
-            //    sprintf(strbuff,"FAILD NUM:%d CNT:%d (%d/%d)",loraWanSendNUM,loraWanSendCNT,loraWanupLinkReviceCNT,loraWanupLinkCNT);
-            //    M5.Lcd.fillRect(0,183,320,32,TFT_BLACK);
-            //    M5.Lcd.setTextColor(TFT_RED);
-            //    M5.Lcd.drawString(strbuff, 10, 183, 4);
-            //    drawLineStr(strbuff, TFT_RED);
-            //}
-            delay(500);
-            system_fsm = kSending;
-        }
+        canvas.println("[ INFO ] JOIN IN FAIL");
+        system_fsm = kIdel;
     }
-    else if(recvStr.indexOf("OK+SEND") != -1)
+  }
+  else if (recvStr.indexOf("OK+RECV") != -1)
+  {
+    if (system_fsm == kJoined)
     {
-        String snednum = recvStr.substring(8);
-        canvas.printf(" [ INFO ] SEND NUM %s \r\n",snednum.c_str());
-        loraWanSendNUM = snednum.toInt();
-    }
-    else if(recvStr.indexOf("OK+SENT") != -1)
-    {
-        String snedcnt = recvStr.substring(8);
-        canvas.printf(" [ INFO ] SEND CNT %s \r\n",snedcnt.c_str());
-        loraWanSendCNT = snedcnt.toInt();
-    }
-    else if(recvStr.indexOf("ERR+SENT") != -1)
-    {
-        char strbuff[128];
-        String ErrorCodeStr = recvStr.substring(9);
-        sprintf(strbuff,"ERROR Code:%d (%d/%d)",ErrorCodeStr.toInt(),loraWanupLinkReviceCNT,loraWanupLinkCNT);
-        canvas.println(strbuff);
-        delay(500);
-
         system_fsm = kSending;
     }
-    else if(recvStr.indexOf("+CLINKCHECK:") != -1)
+    else if (system_fsm == kWaitSend)
     {
-        String checkStr = recvStr.substring(String("+CLINKCHECK:").length());
-
-        char strbuff[128];
-        sprintf(strbuff,"%s (%d/%d)",checkStr.c_str(),loraWanupLinkReviceCNT,loraWanupLinkCNT);
-        canvas.println(strbuff);
+      system_fsm = kEnd;
+      char strbuff[128];
+      loraWanupLinkReviceCNT ++;
 
+      //if(( loraWanSendCNT < 5 )&&( loraWanSendNUM == 8 ))
+      //{
+      //    loraWanupLinkReviceCNT ++;
+      //    sprintf(strbuff,"SEND CNT: %d (%d/%d)",loraWanSendCNT,loraWanupLinkReviceCNT,loraWanupLinkCNT);
+      //    M5.Lcd.fillRect(0,183,320,32,TFT_BLACK);
+      //    M5.Lcd.setTextColor(TFT_GREEN);
+      //    M5.Lcd.drawString(strbuff, 10, 183, 4);
+      //    //drawLineStr(strbuff, TFT_GREEN);
+      //    
+      //}
+      //else
+      //{
+      //    sprintf(strbuff,"FAILD NUM:%d CNT:%d (%d/%d)",loraWanSendNUM,loraWanSendCNT,loraWanupLinkReviceCNT,loraWanupLinkCNT);
+      //    M5.Lcd.fillRect(0,183,320,32,TFT_BLACK);
+      //    M5.Lcd.setTextColor(TFT_RED);
+      //    M5.Lcd.drawString(strbuff, 10, 183, 4);
+      //    drawLineStr(strbuff, TFT_RED);
+      //}
+      delay(500);
+      system_fsm = kSending;
     }
+  }
+  else if(recvStr.indexOf("OK+SEND") != -1)
+  {
+    String snednum = recvStr.substring(8);
+    canvas.printf(" [ INFO ] SEND NUM %s \r\n",snednum.c_str());
+    loraWanSendNUM = snednum.toInt();
+  }
+  else if(recvStr.indexOf("OK+SENT") != -1)
+  {
+    String snedcnt = recvStr.substring(8);
+    canvas.printf(" [ INFO ] SEND CNT %s \r\n",snedcnt.c_str());
+    loraWanSendCNT = snedcnt.toInt();
+  }
+  else if(recvStr.indexOf("ERR+SENT") != -1)
+  {
+    char strbuff[128];
+    String ErrorCodeStr = recvStr.substring(9);
+    sprintf(strbuff,"ERROR Code:%d (%d/%d)",ErrorCodeStr.toInt(),loraWanupLinkReviceCNT,loraWanupLinkCNT);
+    canvas.println(strbuff);
+    delay(500);
 
-    if (system_fsm == kSending)
-    {
-        canvas.println("LoraWan Sending");
-        sendATCMD("AT+CLINKCHECK=1\r");
-        loraWanupLinkCNT ++;
-        system_fsm = kWaitSend;
-    }
-    canvas.pushSprite(0, 0);
-    delay(10);
-}
\ No newline at end of file
+    system_fsm = kSending;
+  }
+  else if(recvStr.indexOf("+CLINKCHECK:") != -1)
+  {
+    String checkStr = recvStr.substring(String("+CLINKCHECK:").length());
+
+    char strbuff[128];
+    sprintf(strbuff,"%s (%d/%d)",checkStr.c_str(),loraWanupLinkReviceCNT,loraWanupLinkCNT);
+    canvas.println(strbuff);
+
+  }
+
+  if (system_fsm == kSending)
+  {
+    canvas.println("LoraWan Sending");
+    sendATCMD("AT+CLINKCHECK=1\r");
+    loraWanupLinkCNT ++;
+    system_fsm = kWaitSend;
+  }
+  canvas.pushSprite(0, 0);
+  delay(10);
+} 
\ No newline at end of file
diff --git a/examples/Unit/TRACE/TRACE.ino b/examples/Unit/TRACE/TRACE.ino
index 3688d8f..244f9ad 100644
--- a/examples/Unit/TRACE/TRACE.ino
+++ b/examples/Unit/TRACE/TRACE.ino
@@ -1,5 +1,16 @@
 /*
-    Description: Read the status of the four line-tracking sensors of TRACE Unit and output them through UART.
+*******************************************************************************
+* Copyright (c) 2021 by M5Stack
+*                  Equipped with M5Core sample source code
+*                          配套  M5Core 示例源代码
+* Visit the website for more information：https://docs.m5stack.com/en/unit/trace
+* 获取更多资料请访问：https://docs.m5stack.com/zh_CN/unit/trace
+*
+* describe: TRACE.
+* date：2021/9/1
+*******************************************************************************
+  Please connect to PORT-A, Read the status of the four line-tracking sensors of TRACE Unit and output them through UART.
+  请连接端口A,读取TRACE Unit四个线跟踪传感器的状态，并通过UART输出。
 */
 
 #include <M5Stack.h>
@@ -9,44 +20,44 @@
 uint8_t value;
 int SensorArray[4] = {0};
 
-void setup() {
-    m5.begin();
-    M5.Power.begin();
+void SensorStatus(void){
+  Wire.beginTransmission(0x5a); //The data transfer to 0x5A begins.  开始向0x5a传输数据
+  Wire.write(0x00);
+  Wire.endTransmission(); //End the data transmission.结束数据传输
+  Wire.requestFrom(0x5a,1); //Request a byte from 0x5a.  向0x5a请求一个字节
+  while(Wire.available()){  //If data is received.  如果数据被接收到
+    value = Wire.read();
+  }
+  M5.Lcd.print(" value = ");
+  M5.Lcd.println(value, HEX);
+#ifdef VALUE_SPLIT
+  SensorArray[3] = (value&0x08)>>3;
+  SensorArray[2] = (value&0x04)>>2;
+  SensorArray[1] = (value&0x02)>>1;
+  SensorArray[0] = (value&0x01)>>0;
+  M5.Lcd.println("     After splitting... ");
+  M5.Lcd.print("     SensorArray[0] = ");    M5.Lcd.println(SensorArray[0]);
+  M5.Lcd.print("     SensorArray[1] = ");  M5.Lcd.println(SensorArray[1]);
+  M5.Lcd.print("     SensorArray[2] = ");  M5.Lcd.println(SensorArray[2]);
+  M5.Lcd.print("     SensorArray[3] = ");  M5.Lcd.println(SensorArray[3]);
+#endif
+}
 
-    Serial.begin(115200);
-    Wire.begin();
-    M5.Lcd.clear(BLACK);
-    M5.Lcd.setTextColor(YELLOW);
-    M5.Lcd.setTextSize(2);
-    M5.Lcd.setCursor(80, 0);
-    M5.Lcd.println("TRACE example");
-    M5.Lcd.setTextColor(WHITE);
+void setup() {
+  M5.begin();
+  M5.Power.begin();
+
+  Wire.begin();
+  M5.Lcd.setTextColor(YELLOW);
+  M5.Lcd.setTextSize(2);
+  M5.Lcd.setCursor(80, 0);
+  M5.Lcd.println("TRACE example");
+  M5.Lcd.setTextColor(WHITE);
 }
 
 void loop(){
-    SensorStatus();
-    delay(100);
-}
-
-void SensorStatus(void){
-    Wire.beginTransmission(0x5a);
-    Wire.write(0x00);
-    Wire.endTransmission();
-    Wire.requestFrom(0x5a,1);
-    while(Wire.available()){
-        value = Wire.read();
-    }
-    Serial.print(" value = ");Serial.println(value, HEX);
-#ifdef VALUE_SPLIT
-    SensorArray[3] = (value&0x08)>>3;
-    SensorArray[2] = (value&0x04)>>2;
-    SensorArray[1] = (value&0x02)>>1;
-    SensorArray[0] = (value&0x01)>>0;
-    Serial.println("After splitting... ");
-    Serial.print("SensorArray[0] = ");Serial.print(SensorArray[0]);
-    Serial.print("  SensorArray[1] = ");Serial.print(SensorArray[1]);
-    Serial.print("  SensorArray[2] = ");Serial.print(SensorArray[2]);
-    Serial.print("  SensorArray[3] = ");Serial.print(SensorArray[3]);
-    Serial.println();
-#endif
-}
+  M5.Lcd.fillRect(0,20,320,180,BLACK);
+  M5.Lcd.setCursor(100,70);
+  SensorStatus();
+  delay(100);
+}
\ No newline at end of file
diff --git a/examples/Unit/UHF_RFID_JRD4035/RFID_command.cpp b/examples/Unit/UHF_RFID_JRD4035/RFID_command.cpp
index a8e9ea6..5783893 100644
--- a/examples/Unit/UHF_RFID_JRD4035/RFID_command.cpp
+++ b/examples/Unit/UHF_RFID_JRD4035/RFID_command.cpp
@@ -1,4 +1,4 @@
-#include <M5Stack.h>
+#include <Arduino.h>
 #include "RFID_command.h"
 #include <string>
 
diff --git a/examples/Unit/UHF_RFID_JRD4035/RFID_command_basics.cpp b/examples/Unit/UHF_RFID_JRD4035/RFID_command_basics.cpp
index b287acd..d6b9ddc 100644
--- a/examples/Unit/UHF_RFID_JRD4035/RFID_command_basics.cpp
+++ b/examples/Unit/UHF_RFID_JRD4035/RFID_command_basics.cpp
@@ -1,4 +1,4 @@
-#include <M5Stack.h>
+#include <Arduino.h>
 #include "RFID_command.h"
 #include <string>
 
diff --git a/examples/Unit/UHF_RFID_JRD4035/TFTTerminal.cpp b/examples/Unit/UHF_RFID_JRD4035/TFTTerminal.cpp
deleted file mode 100644
index c5604e9..0000000
--- a/examples/Unit/UHF_RFID_JRD4035/TFTTerminal.cpp
+++ /dev/null
@@ -1,162 +0,0 @@
-#include "TFTTerminal.h"
-
-TFTTerminal::TFTTerminal(TFT_eSprite *dis_buff_ptr)
-{
-    _dis_buff_ptr = dis_buff_ptr;
-    memset(discharbuff, 0, 55 * 60);
-}
-
-TFTTerminal::~TFTTerminal()
-{
-
-}
-
-
-void TFTTerminal::setcolor( uint16_t color, uint16_t bk_color )
-{
-    _color = color;
-    _bkcolor = bk_color;
-}
-
-void TFTTerminal::setGeometry(uint16_t x, uint16_t y, uint16_t w, uint16_t h )
-{
-    _win_x_pos = x;
-    _win_y_pos = y;
-    _win_w = w;
-    _win_h = h;
-
-    _line_x_limit = _win_w / _font_x_size;
-    _line_y_limit = _win_h / _font_y_size;
-}
-
-void TFTTerminal::setFontsize(uint8_t size)
-{
-    size = ( size == 0 ) ? 1 : size;
-    _font_x_size = 5 * size ;
-    _font_y_size = 6 * size ;
-    _fontSize = size;
-
-    _line_x_limit = _win_w / _font_x_size;
-    _line_y_limit = _win_h / _font_y_size;
-}
-
-size_t TFTTerminal::write(uint8_t chardata)
-{
-    
-    bool flush_page_flag = false;
-    uint8_t dis_y_pos = 0;
-    
-    if ((chardata == '\r') || (chardata == '\n'))
-    {
-        xpos = 0;
-        ypos++;
-        ypos = ypos % 60;
-        memset(discharbuff[ypos % 60], 0, 55);
-        return 1;
-    }
-    else if(xpos >= _line_x_limit)
-    {
-        xpos = 0;
-        ypos++;
-        ypos = ypos % 60;
-        memset(discharbuff[ypos % 60], 0, 55);
-    }
-    
-    discharbuff[ypos][xpos] = chardata;
-    xpos++;
-
-    if ((dispos <= ypos) && ((ypos - dispos) > _line_y_limit))
-    {
-        dispos = ypos - _line_y_limit;
-        flush_page_flag = true;
-    }
-    else if ((dispos <= ypos) && ((ypos - dispos) <= _line_y_limit))
-    {
-        dis_y_pos = ypos - dispos;
-        flush_page_flag = false;
-    }
-    else if ((dispos > ypos) && ((60 - (dispos - ypos)) > _line_y_limit))
-    {
-        dispos = 60 - ( _line_y_limit - ypos );
-        flush_page_flag = true;
-    }
-    else if ((dispos > ypos) && ((60 - (dispos - ypos)) > _line_y_limit))
-    {
-        dis_y_pos = 60 - ( dispos - ypos );
-        flush_page_flag = false;
-    }
-
-    dispos = dispos % 60;
-
-    _dis_buff_ptr->setTextColor(_color);
-    _dis_buff_ptr->setTextSize(_fontSize);
-
-    if( flush_page_flag )
-    {
-        _dis_buff_ptr->fillSprite(_bkcolor);
-
-        for (size_t i = 0; i < _line_y_limit; i++)
-        {
-            _dis_buff_ptr->drawString((char *)discharbuff[(dispos + i) % 60], 0, i * _font_y_size);
-        }
-    }
-    else
-    {
-        _dis_buff_ptr->drawChar(chardata, ( xpos - 1 ) * _font_x_size, dis_y_pos * _font_y_size );
-    }
-    _dis_buff_ptr->pushSprite(_win_x_pos, _win_y_pos);
-
-    return 1;
-    
-}
-
-size_t TFTTerminal::write(const uint8_t *buffer, size_t size)
-{
-
-    while ((size != 0) && (*buffer != '\0'))
-    {
-        if ((*buffer == '\r') || (*buffer == '\n'))
-        {
-            xpos = 0;
-            ypos++;
-            ypos = ypos % 60;
-            memset(discharbuff[ypos % 60], 0, 55);
-            buffer++;
-            size--;
-            continue;
-        }
-        else if(xpos >= _line_x_limit)
-        {
-            xpos = 0;
-            ypos++;
-            ypos = ypos % 60;
-            memset(discharbuff[ypos % 60], 0, 55);
-        }
-        discharbuff[ypos][xpos] = *buffer;
-        xpos++;
-        buffer++;
-        size--;
-    }
-
-    if ((dispos <= ypos) && ((ypos - dispos) > _line_y_limit))
-    {
-        dispos = ypos - _line_y_limit;
-    }
-    else if ((dispos > ypos) && ((60 - (dispos - ypos)) > _line_y_limit))
-    {
-        dispos = 60- ( _line_y_limit - ypos );
-    }
-
-    dispos = dispos % 60;
-
-    _dis_buff_ptr->setTextColor(_color);
-    _dis_buff_ptr->setTextSize(_fontSize);
-    _dis_buff_ptr->fillSprite(_bkcolor);
-    //_dis_buff_ptr->fillRect(_win_x_pos, _win_y_pos, _win_w, _win_h, _bkcolor);
-    for (size_t i = 0; i < _line_y_limit; i++)
-    {
-        _dis_buff_ptr->drawString((char *)discharbuff[(dispos + i) % 60], 0, i * _font_y_size);
-    }
-    _dis_buff_ptr->pushSprite(_win_x_pos, _win_y_pos);
-    return 1;
-}
diff --git a/examples/Unit/UHF_RFID_JRD4035/TFTTerminal.h b/examples/Unit/UHF_RFID_JRD4035/TFTTerminal.h
deleted file mode 100644
index bc16b6e..0000000
--- a/examples/Unit/UHF_RFID_JRD4035/TFTTerminal.h
+++ /dev/null
@@ -1,35 +0,0 @@
-#ifndef _TFTTERMINAL_H_
-#define _TFTTERMINAL_H_
-
-#include <M5Stack.h>
-#include <Print.h>
-
-class TFTTerminal : public Print
-{
-private:
-    TFT_eSprite *disptr;
-    char discharbuff[60][55];
-    uint32_t xpos = 0,ypos = 0, dispos = 0;
-    TFT_eSprite* _dis_buff_ptr = NULL;
-    uint16_t _bkcolor = TFT_BLACK;
-    uint16_t _color = TFT_GREEN;
-
-    uint16_t _win_x_pos = 0,_win_y_pos = 0,_win_w = 320,_win_h = 240;
-    uint16_t _font_x_size = 6,_font_y_size = 8;
-    uint8_t  _fontSize = 0;
-    uint16_t _line_x_limit = 53,_line_y_limit = 30;
-
-public:
-    TFTTerminal(TFT_eSprite *dis_buff_ptr);
-    ~TFTTerminal();
-    
-    void setcolor( uint16_t color, uint16_t bk_color );
-    void setGeometry(uint16_t x, uint16_t y, uint16_t w, uint16_t h );
-    void setFontsize(uint8_t size);
-
-    size_t write(uint8_t) ;
-    size_t write(const uint8_t *buffer, size_t size);
-};
-
-
-#endif
diff --git a/examples/Unit/UHF_RFID_JRD4035/UHF_RFID_JRD4035.ino b/examples/Unit/UHF_RFID_JRD4035/UHF_RFID_JRD4035.ino
index 95788ce..6e00474 100644
--- a/examples/Unit/UHF_RFID_JRD4035/UHF_RFID_JRD4035.ino
+++ b/examples/Unit/UHF_RFID_JRD4035/UHF_RFID_JRD4035.ino
@@ -7,21 +7,18 @@
 * 获取更多资料请访问：https://docs.m5stack.com/zh_CN/unit/uhf_rfid
 *
 * describe: uhf_rfid.
-* date：2021/8/30
+* date：2021/9/1
 *******************************************************************************
-  Please connect to PORT-B,Press buttonA or buttonB to Send message if received message, screen will display
-  请连接端口B,按钮A或按钮B发送消息，如果收到消息，屏幕将显示
 */
 #include <M5Stack.h>
 #include "RFID_command.h"
+#include <M5GFX.h>
 
-#include "TFTTerminal.h"
-TFT_eSprite TerminalBuff = TFT_eSprite(&M5.Lcd);
-TFTTerminal terminal(&TerminalBuff);
+M5GFX display;
+M5Canvas canvas(&display);
 
 UHF_RFID RFID;
 
-
 String comd = " ";
 CardpropertiesInfo card;
 ManyInfo cards;
@@ -35,16 +32,18 @@ TestInfo Test;
 void setup()
 {
   M5.begin();
+  display.begin();
+  display.setTextSize(2);
+  canvas.setColorDepth(1); // mono color
+  canvas.createSprite(display.width(), display.height());
+  canvas.setTextSize((float)canvas.width() / 160);
+  canvas.setTextScroll(true);
 
   RFID._debug = 0;
   Serial2.begin(115200, SERIAL_8N1, 16, 17);//16.17
   if (RFID._debug == 1)Serial.begin(115200, SERIAL_8N1, 21, 22);
   M5.Lcd.fillRect(0, 0, 340, 280, BLACK);
 
-  TerminalBuff.createSprite(280,200);
-  terminal.setGeometry(20,30,300,200);
-  terminal.setFontsize(1);
-
 // UHF_RFID set UHF_RFID设置
   RFID.Set_transmission_Power(2600);
   RFID.Set_the_Select_mode();
@@ -53,7 +52,7 @@ void setup()
   RFID.clean_data();
   
 // Prompted to connect to UHF_RFID 提示连接UHF_RFID
-  terminal.println("Please connect UHF_RFID to Port C");
+  display.println("Please connect UHF_RFID to Port C");
   
 // Determined whether to connect to UHF_RFID 判断是否连接UHF_RFID
   String soft_version;
@@ -69,7 +68,7 @@ void setup()
   }
 
 // The prompt will be RFID card close 提示将RFID卡靠近
-  terminal.println("Please approach the RFID card you need to use");
+  display.println("Please approach the RFID card you need to use");
   
 }
 
@@ -83,62 +82,58 @@ void loop()
 
 //  A read/write operation specifies a particular card 读写操作需指定某一张卡
 //  comd = RFID.Set_the_select_parameter_directive("30751FEB705C5904E3D50D70");
-//  terminal.println(comd);
+//  canvas.println(comd);
 //  RFID.clean_data();
 
 /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  Query the card information once 查询一次卡的信息例子
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
  card = RFID.A_single_poll_of_instructions();
- if (card._ERROR.length() != 0)
- {
-   Serial.print(card._ERROR);
- }
- else
- {
-  if(card._EPC.length() == 24)
-  {
-     terminal.println("RSSI :" + card._RSSI);
-     terminal.println("PC :" + card._PC);
-     terminal.println("EPC :" + card._EPC);
-     terminal.println("CRC :" + card._CRC);
-     terminal.println(" ");
-   }
- }
-   RFID.clean_data(); //Empty the data after using it 使用完数据后要将数据清空
-  
+ if (card._ERROR.length() != 0){
+    Serial.println(card._ERROR);
+ }else{
+    if(card._EPC.length() == 24){
+      canvas.println("RSSI :" + card._RSSI);
+      canvas.println("PC :" + card._PC);
+      canvas.println("EPC :" + card._EPC);
+      canvas.println("CRC :" + card._CRC);
+      canvas.println(" ");
+    }
+  }
+  RFID.clean_data(); //Empty the data after using it 使用完数据后要将数据清空
+
 
 /*Other feature usage examples 其他功能使用例子*/
 
 /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   Read multiple RFID cards at once 一次读取多张RFID卡
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
-//  cards = RFID.Multiple_polling_instructions(6);
-//  for (size_t i = 0; i < cards.len; i++)
-//  {
-//    if(cards.card[i]._EPC.length() == 24)
-//      {
-//         terminal.println("RSSI :" + cards.card[i]._RSSI);
-//         terminal.println("PC :" + cards.card[i]._PC);
-//         terminal.println("EPC :" + cards.card[i]._EPC);
-//         terminal.println("CRC :" + cards.card[i]._CRC);
-//       }
-//  }
-//  terminal.println(" ");  
-//  RFID.clean_data();
-
+/*  cards = RFID.Multiple_polling_instructions(6);
+ for (size_t i = 0; i < cards.len; i++)
+ {
+   if(cards.card[i]._EPC.length() == 24)
+     {
+        canvas.println("RSSI :" + cards.card[i]._RSSI);
+        canvas.println("PC :" + cards.card[i]._PC);
+        canvas.println("EPC :" + cards.card[i]._EPC);
+        canvas.println("CRC :" + cards.card[i]._CRC);
+      }
+ }
+ canvas.println(" ");  
+ RFID.clean_data();
+ */
 /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   Used to get the SELECT parameter 用于获取Select参数
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
 //  Select = RFID.Get_the_select_parameter();
 //  if(Select.Mask.length() != 0)
 //  {
-//    terminal.println("Mask :" + Select.Mask);
-//    terminal.println("SelParam :" + Select.SelParam);
-//    terminal.println("Ptr :" + Select.Ptr);
-//    terminal.println("MaskLen :" + Select.MaskLen);
-//    terminal.println("Truncate :" + Select.Truncate);
-//    terminal.println(" ");
+//    canvas.println("Mask :" + Select.Mask);
+//    canvas.println("SelParam :" + Select.SelParam);
+//    canvas.println("Ptr :" + Select.Ptr);
+//    canvas.println("MaskLen :" + Select.MaskLen);
+//    canvas.println("Truncate :" + Select.Truncate);
+//    canvas.println(" ");
 //  }
 //    RFID.clean_data();
 
@@ -148,15 +143,15 @@ void loop()
 //  Cardinformation = RFID.NXP_Change_EAS(0x00000000);
 //  if(Cardinformation._UL.length() != 0)
 //  {
-//    terminal.println("UL :" + Cardinformation._UL);
-//    terminal.println("PC :" + Cardinformation._PC);
-//    terminal.println("EPC :" + Cardinformation._EPC);
-//    terminal.println("Parameter :" + Cardinformation._Parameter);
-//    terminal.println("ErrorCode :" + Cardinformation._ErrorCode);
-//    terminal.println("Error :" + Cardinformation._Error);
-//    terminal.println("Data :" + Cardinformation._Data);
-//    terminal.println("Successful :" + Cardinformation._Successful);
-//    terminal.println(" ");
+//    canvas.println("UL :" + Cardinformation._UL);
+//    canvas.println("PC :" + Cardinformation._PC);
+//    canvas.println("EPC :" + Cardinformation._EPC);
+//    canvas.println("Parameter :" + Cardinformation._Parameter);
+//    canvas.println("ErrorCode :" + Cardinformation._ErrorCode);
+//    canvas.println("Error :" + Cardinformation._Error);
+//    canvas.println("Data :" + Cardinformation._Data);
+//    canvas.println("Successful :" + Cardinformation._Successful);
+//    canvas.println(" ");
 //   }
 //    RFID.clean_data();
   
@@ -167,15 +162,15 @@ void loop()
 //  Query = RFID.Get_the_Query_parameter();
 //  if(Query.QueryParameter.length() != 0)
 //  {
-//    terminal.println("QueryParameter :" + Query.QueryParameter);
-//    terminal.println("DR :" + Query.DR);
-//    terminal.println("M :" + Query.M);
-//    terminal.println("TRext :" + Query.TRext);
-//    terminal.println("Sel :" + Query.Sel);
-//    terminal.println("Session :" + Query.Session);
-//    terminal.println("Targetta :" + Query.Target);
-//    terminal.println("Q :" + Query.Q);
-//    terminal.println(" ");
+//    canvas.println("QueryParameter :" + Query.QueryParameter);
+//    canvas.println("DR :" + Query.DR);
+//    canvas.println("M :" + Query.M);
+//    canvas.println("TRext :" + Query.TRext);
+//    canvas.println("Sel :" + Query.Sel);
+//    canvas.println("Session :" + Query.Session);
+//    canvas.println("Targetta :" + Query.Target);
+//    canvas.println("Q :" + Query.Q);
+//    canvas.println(" ");
 //  }
 //  RFID.clean_data();
 
@@ -186,10 +181,10 @@ void loop()
 //  Read = RFID.Read_receive_demodulator_parameters();
 //  if(Read.Mixer_G.length()!= 0)
 //  {
-//    terminal.println("Mixer_G :" + Read.Mixer_G);
-//    terminal.println("IF_G :" + Read.IF_G);
-//    terminal.println("Thrd :" + Read.Thrd);
-//    terminal.println(" ");
+//    canvas.println("Mixer_G :" + Read.Mixer_G);
+//    canvas.println("IF_G :" + Read.IF_G);
+//    canvas.println("Thrd :" + Read.Thrd);
+//    canvas.println(" ");
 //  }
 //  RFID.clean_data();
 }