gpio圖

4g sim 卡方案

盒裝實品照

#define iModemRx 26
#define iModemTx 27
#define iCharArrayMax 1024
#define iLed 12

#include <ctype.h>

HardwareSerial SerialAT(1);

char caATCmd[]="AT+CGPSINFO";
char caATKeyword[]="+CGPSINFO:";
char caPhp[]="cgpsinfo.php";

int iLedVal=0;

void qa(const char caQuestion[], char caAnswer[])
{
  caAnswer[0]='\0';

  while(SerialAT.available()) { SerialAT.read(); } // clear leftover data
  
  SerialAT.write(caQuestion);
  SerialAT.write("\r\n");
  
  delay(50);
  
  int iLen=0;
  unsigned long ulLast=millis();
  int iMaxMilliSecond=10000;
  
  // maybe multi lines
  while((millis()-ulLast)<iMaxMilliSecond)
  {
    while(SerialAT.available())
    {
      char c1=SerialAT.read();
      ulLast=millis();
      if(iLen<(iCharArrayMax-1))
      {
        caAnswer[iLen]=c1;
        iLen++;
        caAnswer[iLen]='\0';
      }
    }
    
    if(strstr(caAnswer, "\r\nOK\r\n") || strstr(caAnswer, "\r\nERROR\r\n")) { iMaxMilliSecond=300; }
    
    delay(1);
  }
}

bool getBooQA(const char caQuestion[], const char caKeyword[])
{
  static char caAnswerBuffer[iCharArrayMax];
  qa(caQuestion, caAnswerBuffer);
  
  if(strstr(caAnswerBuffer, caKeyword)!=NULL) { return true; }
  return false;
}

void setup()
{
  static char caAnswer[iCharArrayMax];

  pinMode(iLed, OUTPUT);
  digitalWrite(iLed, 1);

  Serial.begin(115200); // esp32
  
  SerialAT.begin(115200, SERIAL_8N1, iModemRx, iModemTx); // sim7600g-h
  pinMode(4, OUTPUT);
  digitalWrite(4, HIGH);
  delay(3000);
  while(SerialAT.available()) SerialAT.read();
  
  while(getBooQA("AT", "OK")==false) { delay(1000); } // wait until AT is OK
  
  // enable GPS via AT+CGPS=1
  qa("AT+CGPS=0", caAnswer);
  delay(3000);
  qa("AT+CGPS=1", caAnswer);
  
  // network registration
  int iRetry=0;
  while(getBooQA("AT+CGDCONT=1,\"IP\",\"internet\"", "\r\nOK\r\n")==false)
  {
    delay(1000); 
    iRetry++;
    if(iRetry>10) { break; }
  }
  
  if(iRetry>10)
  {
    digitalWrite(4, LOW);
    delay(500);
    digitalWrite(4, HIGH);
    delay(8000);
    
    ESP.restart();
  }
  
  digitalWrite(iLed, 0);
}

bool getBooExtractGPSDataOk(char caInput[], char caOutput[], int iOutputMax, const char caKeyword[])
{
  int iIdxInput=0;
  int iIdxOutput=0;
  bool booFound=false;

  caOutput[0]='\0';
  
  while(true)
  {
    if(caInput[iIdxInput]=='\0') { break; }
    if(strncmp(&caInput[iIdxInput], caKeyword, strlen(caKeyword))==0)
    {
      booFound=true;
      iIdxInput+=strlen(caKeyword);
      while(caInput[iIdxInput]==' ') { iIdxInput++; } // remove spaces
      break;
    }
    iIdxInput++;
    if(iIdxInput>=(iCharArrayMax-1)) { return false; }
  }
  if(booFound==false) { return false; }
  
  while(true)
  {
    if(caInput[iIdxInput]=='\0') { break; }
    if(caInput[iIdxInput]=='\r' || caInput[iIdxInput]=='\n') { break; }
    if(iIdxOutput<(iOutputMax-1))
    {
      caOutput[iIdxOutput]=caInput[iIdxInput];
      iIdxOutput++;
    }
    else
    {
      break;
    }
    iIdxInput++;
    if(iIdxInput>=iCharArrayMax) { break; }
  }
  caOutput[iIdxOutput]='\0';
  
  if(iIdxOutput<=28) { return false; }
  if(caOutput[11]!=',' || caOutput[13]!=',' || caOutput[26]!=',' || caOutput[28]!=',') { return false; }
  
  return true;
}

bool getBooSafeChar(char c1)
{
  if ((c1 >= 'a' && c1 <= 'z') ||
      (c1 >= 'A' && c1 <= 'Z') ||
      (c1 >= '0' && c1 <= '9'))
  {
    return true;
  }

  if (c1 == '-' || 
      c1 == '_' || 
      c1 == '.' || 
      c1 == '~')
  {
    return true;
  }

  return false;
}

void encodeURIComponent(const char caInput[], char caOutput[], int iOutputMax)
{
  static const char caHex[] = "0123456789ABCDEF";  
  
  int iIdxInput=0;
  int iIdxOutput=0;

  while(caInput[iIdxInput]!='\0' && iIdxOutput<(iOutputMax-1))
  {
    char c1=caInput[iIdxInput];
    
    if(c1=='\r' || c1=='\n')
    {
    }
    else if(getBooSafeChar(c1)==true)
    {
      caOutput[iIdxOutput]=c1;
      iIdxOutput++;
    }
    else
    {
      if((iIdxOutput+3)>=iOutputMax) { break; }
      
      caOutput[iIdxOutput+0] = '%';
      caOutput[iIdxOutput+1] = caHex[(c1 >> 4) & 0xF];
      caOutput[iIdxOutput+2] = caHex[c1 & 0xF];      
      
      iIdxOutput+=3;
    }
    
    iIdxInput++;
    if(iIdxInput>=iCharArrayMax) { break; }
  }
  
  caOutput[iIdxOutput]='\0';
}

void sendGpsData(const char caPhp[], const char caGpsData[])
{
  static char caEncodedGpsData[iCharArrayMax];
  static char caCommand[1024];
  caEncodedGpsData[0]='\0';
  caCommand[0]='\0';
  
  while(true)
  {
    if(getBooQA("AT+CPIN?", "+CPIN: READY")==false) { break; }
    if(getBooQA("AT+CGATT=1", "\r\nOK\r\n")==false) { break; }
    if(getBooQA("AT+CGATT?", "+CGATT: 1")==false) { break; }
    if(getBooQA("AT+HTTPINIT", "\r\nOK\r\n")==false) { break; }
    
    // parameters
    encodeURIComponent(caGpsData, caEncodedGpsData, iCharArrayMax);
    snprintf(
      caCommand,
      sizeof(caCommand),
      "AT+HTTPPARA=\"URL\",\"http://liujiaje.com/resources/20260513_lilygo_t_sim7600g_h/%s?id=%s&data=%s\"",
      caPhp, "lilygo1", caEncodedGpsData);
    if(getBooQA(caCommand, "\r\nOK\r\n")==false) { break; }
    
    if(getBooQA("AT+HTTPACTION=0", "+HTTPACTION:")==true)
    {
      delay(50);
      getBooQA("AT+HTTPREAD=0,200", "+HTTPREAD:"); // read 200 bytes
      delay(50);
    }
    
    int iRetry=0;
    while(getBooQA("AT+HTTPTERM", "\r\nOK\r\n")==false)
    {
      delay(1000); 
      iRetry++;
      if(iRetry>30)
      {
        // modem might be stuck
        digitalWrite(4, LOW);
        delay(500);
        digitalWrite(4, HIGH);
        delay(8000);
        break;
      }
    }
    
    break;
  }

}

void loop()
{
  char caAnswer[iCharArrayMax];
  char caGpsData[iCharArrayMax];
  
  iLedVal=(iLedVal+1) % 2;
  digitalWrite(iLed, iLedVal);
  
  while(true)
  {
    if(getBooQA("AT+CGPS?", "+CGPS: 1,1")==false) { break; }
    delay(10);
    
    qa(caATCmd, caAnswer);
    caAnswer[iCharArrayMax-1]='\0';
    
    if(getBooExtractGPSDataOk(caAnswer, caGpsData, sizeof(caGpsData), caATKeyword)==false) { break; }
    if(strlen(caGpsData)<=14) { break; }
    
    sendGpsData(caPhp, caGpsData);
    break;
  }
  
  delay(1000);
  
  /*
  while (Serial.available()) { SerialAT.write(Serial.read()); }
  while (SerialAT.available()) { Serial.write(SerialAT.read()); }
  */  
}

#define iModemRx 26
#define iModemTx 27
#define iCharArrayMax 1024

#include <ctype.h>

HardwareSerial SerialAT(1);

char caATCmd[]="AT+CGPSINFO";
char caATKeyword[]="+CGPSINFO:";
char caPhp[]="cgpsinfo.php";

/*
char caATCmd[]="AT+CGNSINF";
char caATKeyword[]="+CGNSINF:";
char caPhp[]="cgnsinf.php";
*/

void qa(const char caQuestion[], char caAnswer[])
{
  while(SerialAT.available()) { SerialAT.read(); } // clear leftover data
  
  SerialAT.write(caQuestion);
  SerialAT.write("\r\n");
  
  delay(50);
  
  int iLen=0;
  unsigned long ulLast=millis();
  
  // maybe multi lines
  while((millis()-ulLast)<10000)
  {
    while(SerialAT.available())
    {
      char c1=SerialAT.read();
      ulLast=millis();
      if(iLen<(iCharArrayMax-1))
      {
        caAnswer[iLen]=c1;
        iLen++;
        caAnswer[iLen]='\0';
      }
    }
    
    if(strstr(caAnswer, "OK") || strstr(caAnswer, "ERROR")) { break; }
  }
  
  delay(50);
}

bool getBooQA(const char caQuestion[], const char caKeyword[])
{
  char caAnswerBuffer[iCharArrayMax];
  qa(caQuestion, caAnswerBuffer);
  
  if(strstr(caAnswerBuffer, caKeyword)!=NULL) { return true; }
  return false;
}

void setup()
{
  char caAnswer[iCharArrayMax];
  
  Serial.begin(115200); // esp32
  SerialAT.begin(115200, SERIAL_8N1, iModemRx, iModemTx); // sim7600g-h
  pinMode(4, OUTPUT);
  digitalWrite(4, HIGH);
  delay(3000);
  
  while(getBooQA("AT", "OK")==false) { delay(1000); } // wait until AT is OK
  
  // enable GPS via AT+CGPS=1
  qa("AT+CGPS=0", caAnswer);
  delay(3000);
  qa("AT+CGPS=1", caAnswer);
  
  while(getBooQA("AT+CGDCONT=1,\"IP\",\"internet\"", "OK")==false) { delay(1000); } // network registration
}

bool getBooExtractGPSDataOk(char caInput[], char caOutput[], int iOutputMax, const char caKeyword[])
{
  int iIdxInput=0;
  int iIdxOutput=0;
  bool booFound=false;

  while(true)
  {
    if(caInput[iIdxInput]=='\0') { break; }
    if(strncmp(&caInput[iIdxInput], caKeyword, strlen(caKeyword))==0)
    {
      booFound=true;
      iIdxInput+=strlen(caKeyword);
      while(caInput[iIdxInput]==' ') { iIdxInput++; } // remove spaces
      break;
    }
    iIdxInput++;
  }
  if(booFound==false) { return false; }
  
  while(true)
  {
    if(caInput[iIdxInput]=='\0') { break; }
    if(caInput[iIdxInput]=='\r' || caInput[iIdxInput]=='\n') { break; }
    if(iIdxOutput<(iOutputMax-1))
    {
      caOutput[iIdxOutput]=caInput[iIdxInput];
      iIdxOutput++;
    }
    iIdxInput++;
  }
  caOutput[iIdxOutput]='\0';
  
  if(iIdxOutput<=28) { return false; }
  if(caOutput[11]!=',' || caOutput[13]!=',' || caOutput[26]!=',' || caOutput[28]!=',') { return false; }
  
  return true;
  //return (iIdxOutput>0);
}

bool getBooSafeChar(char c1)
{
  if ((c1 >= 'a' && c1 <= 'z') ||
      (c1 >= 'A' && c1 <= 'Z') ||
      (c1 >= '0' && c1 <= '9'))
  {
    return true;
  }

  if (c1 == '-' || 
      c1 == '_' || 
      c1 == '.' || 
      c1 == '~')
  {
    return true;
  }

  return false;
}

void encodeURIComponent(const char caInput[], char caOutput[], int iOutputMax)
{
  int iIdxInput=0;
  int iIdxOutput=0;

  while(caInput[iIdxInput]!='\0' && iIdxOutput<(iOutputMax-1))
  {
    char c1=caInput[iIdxInput];
    
    if(c1=='\r' || c1=='\n')
    {
    }
    else if(getBooSafeChar(c1)==true)
    {
      caOutput[iIdxOutput]=c1;
      iIdxOutput++;
    }
    else
    {
      if((iIdxOutput+3)>=iOutputMax) { break; }
      sprintf(&caOutput[iIdxOutput], "%%%02X", (unsigned char)c1);
      iIdxOutput+=3;
    }
    
    iIdxInput++;
  }
  
  caOutput[iIdxOutput]='\0';
}

void sendGpsData(const char caPhp[], const char caGpsData[])
{
  char caEncodedGpsData[iCharArrayMax];
  
  while(true)
  {
    if(getBooQA("AT+CPIN?", "+CPIN: READY")==false) { break; }
    if(getBooQA("AT+CGATT=1", "OK")==false) { break; }
    if(getBooQA("AT+CGATT?", "+CGATT: 1")==false) { break; }
    if(getBooQA("AT+HTTPINIT", "OK")==false) { break; }
    
    // parameters
    encodeURIComponent(caGpsData, caEncodedGpsData, iCharArrayMax);
    char caCommand[1024];
    snprintf(
      caCommand,
      sizeof(caCommand),
      "AT+HTTPPARA=\"URL\",\"http://liujiaje.com/resources/20260513_lilygo_t_sim7600g_h/%s?id=%s&data=%s\"",
      caPhp, "lilygo1", caEncodedGpsData);
    if(getBooQA(caCommand, "OK")==false) { break; }
    
    if(getBooQA("AT+HTTPACTION=0", "OK")==true)
    {
      delay(50);
      getBooQA("AT+HTTPREAD=0,200", "."); // read 200 bytes
      delay(50);
    }
    
    while(getBooQA("AT+HTTPTERM", "OK")==false) { delay(1000); }
    // delay(500);
    
    break;
  }

}

void loop() 
{
  char caAnswer[iCharArrayMax];
  char caGpsData[iCharArrayMax];
  
  while(true)
  {
    if(getBooQA("AT+CGPS?", "+CGPS: 1,1")==false) { break; }
    delay(10);
    
    qa(caATCmd, caAnswer);
    if(getBooExtractGPSDataOk(caAnswer, caGpsData, sizeof(caGpsData), caATKeyword)==false) { break; }
    if(strlen(caGpsData)<=14) { break; }
    
    sendGpsData(caPhp, caGpsData);
    // delay(4000);
    break;
  }
  
  delay(1000);
  
  /*
  while (Serial.available()) { SerialAT.write(Serial.read()); }
  while (SerialAT.available()) { Serial.write(SerialAT.read()); }
  */  
}

#define MODEM_RX 26
#define MODEM_TX 27

HardwareSerial SerialAT(1);

const int iBufferMax=1024;
char caBuffer[iBufferMax];

const int iEncodedDataMax=1024;
char caEncodedData[iEncodedDataMax];
char caData[iEncodedDataMax];
char caGps[iEncodedDataMax];

void setup() 
{
  Serial.begin(115200);
  SerialAT.begin(115200, SERIAL_8N1, MODEM_RX, MODEM_TX);
  pinMode(4, OUTPUT);
  digitalWrite(4, HIGH);
  delay(3000);
  
  Serial.println("");
  Serial.println("wait...");

  while(getBooQA("AT", "OK")==false) { delay(1000); }
  
  while(true)
  {
    if(getBooQA("AT", "OK")==false) { break; }
    Serial.println("AT OK");
    
    if(getBooQA("AT+CGDCONT=1,\"IP\",\"internet\"", "OK")==false) { break; }
    Serial.println("CGDCONT OK");
    
    break;
  }
  
  qa("AT+CGPS=0", caBuffer);
  delay(3000);
  qa("AT+CGPS=1", caBuffer);
  
  Serial.println("setup finishd");
}

void sendData(const char *cData)
{
  while(true)
  {
    if(getBooQA("AT+CPIN?", "+CPIN: READY")==false) { break; }
    Serial.println("CPIN OK");

    if(getBooQA("AT+CGATT=1", "OK")==false) { break; }
    Serial.println("CGATT SET");
    
    if(getBooQA("AT+CGATT?", "+CGATT: 1")==false) { break; }
    Serial.println("CGATT REALLY OK");
    
    if(getBooQA("AT+HTTPINIT", "OK")==false) { break; }
    Serial.println("HTTPINIT OK");
    
    urlEncode(cData, caEncodedData, iEncodedDataMax);
    Serial.println(caEncodedData);
    char caCmd[1024];
    snprintf(
      caCmd, 
      sizeof(caCmd),
      "AT+HTTPPARA=\"URL\",\"http://liujiaje.com/resources/20260513/index.php"
      "?data=%s\"",
      caEncodedData);
    if(getBooQA(caCmd, "OK")==false) { break; }
    Serial.println("HTTPPARA OK");
    
    if(getBooQA("AT+HTTPACTION=0", "OK")==false) { break; }
    Serial.println("HTTPACTION OK");
    
    getBooQA("AT+HTTPREAD=0,200", ".");
    Serial.println("read data...");
    delay(1000);
    
    if(getBooQA("AT+HTTPTERM", "OK")==false) { break; }
    Serial.println("HTTPTERM OK");
    
    break;
  }

}

bool getBooQA(const char *cQ, const char *cKW)
{
  qa(cQ, caBuffer);
  if(!strstr(caBuffer, cKW)) { return false; }
  return true;
}

void qa(const char *cQ, char cA[])
{
  while(SerialAT.available()) { SerialAT.read(); }
  
  SerialAT.write(cQ);
  SerialAT.write("\r\n");
  
  delay(50);
  
  int iLen=0;
  unsigned long ulLast=millis();
  
  while((millis()-ulLast)<3000)
  {
    while(SerialAT.available())
    {
      char c1=SerialAT.read();
      ulLast=millis();
      if(iLen<(iBufferMax-1))
      {
        cA[iLen]=c1;
        iLen++;
        cA[iLen]='\0';
      }
    }
    
    if(strstr(cA, "OK") || strstr(cA, "ERROR")) { break; }
  }
  
  delay(50);
}

bool getBooSafeChar(char c)
{
  if ((c >= 'a' && c <= 'z') ||
      (c >= 'A' && c <= 'Z') ||
      (c >= '0' && c <= '9'))
  {
    return true;
  }

  if (c == '-' || c == '_' || c == '.' || c == '~')
  {
    return true;
  }

  return false;
}

void urlEncode(const char *cIn, char *cOut, int iOutMax)
{
  int iIn=0;
  int iOut=0;

  while(cIn[iIn]!='\0' && iOut<(iOutMax-1))
  {
    char c = cIn[iIn];
    
    if(c=='\r' || c=='\n')
    {
    }
    else if(getBooSafeChar(c))
    {
      cOut[iOut++]=c;
    }
    else
    {
      if(iOut+3>=iOutMax) { break; }
      sprintf(&cOut[iOut], "%%%02X", (unsigned char)c);
      iOut+=3;
    }

    iIn++;
  }

  cOut[iOut]='\0';
}

bool extractGPS(char *in, char *out, int outMax)
{
  const char *key = "+CGPSINFO:";

  int i = 0;
  int o = 0;
  bool found = false;

  while(in[i] != '\0')
  {
    // 1. 找到 +CGPSINFO:
    if(!found)
    {
      if(strncmp(&in[i], key, strlen(key)) == 0)
      {
        found = true;
        i += strlen(key);

        // 可選：跳過空白
        while(in[i] == ' ') i++;
        continue;
      }
    }
    else
    {
      // 2. 遇到 CR 或 LF 結束
      if(in[i] == '\r' || in[i] == '\n')
      {
        break;
      }

      // 3. 存入 output
      if(o < (outMax - 1))
      {
        out[o++] = in[i];
      }
    }

    i++;
  }

  out[o] = '\0';

  return (o > 0);
}

void loop() 
{
  while (Serial.available()) 
  {
    qa(Serial.readString().c_str(), caBuffer);
    
    Serial.println(caBuffer);
  }
  
  if(getBooQA("AT+CGPS?", "+CGPS: 1,1")==true)
  {
    delay(10);
    qa("AT+CGPSINFO", caBuffer);
    
    if(extractGPS(caBuffer, caGps, sizeof(caGps)))
    {
      memcpy(caData, caGps, iEncodedDataMax);
      
      if(strlen(caGps)>14)
      {
        Serial.println("sendData");
        Serial.println(caData);
        
        sendData(caData);
        delay(1000);
      }
    }
  }
  
  delay(1000);
  
  /*
  while (Serial.available()) { SerialAT.write(Serial.read()); }
  while (SerialAT.available()) { Serial.write(SerialAT.read()); }
  */  
}

【mcu 微控制器】
  
  mcu 比較
    esp32 lolin d32 雙核記憶體大，可用 thonny [micropython] 開發
    esp32 c3 supermini 單核記憶體小，使用 arduino [c++] 開發
  
  esp32 c3 supermini 的燒錄問題
    按住 boot 不放
    再按 reset
    放開 reset
    再放開 boot
    這時候可以 erase flash 、 upload programs
    
  esp32 c3 supermini 的 wifi 問題
    最後用 WiFi.setTxPower(WIFI_POWER_8_5dBm); 解決

【電腦與微控制器之間的溝通-序列埠】
  
  USB:Universal Serial Bus
  
  UART:Universal Asynchronous Receiver/Transmitter 通用非同步收發傳輸器
  (e.q.RS232[COM1, COM2, ......], RS449, ......)
  
  通訊埠
  　Windows 用 COM (COMunication)
  　MacOS X, Linux 用 TTY (teletypewriter)
  
  傳輸速率(Baud rate)
  　e.q.9600bps, 115200bps
  
  CDC:Communications Device Class 通訊裝置
  ACM:Abstract Control Model 抽象控制模型
  JTAG:Joint Test Action Group 聯合測試工作群組
  
  USB TO UART:USB→CH340/CP2102晶片→UART TX/RX→MCU
  　Win7─COM1, ......
  　Win11─COM1, ......
  　Ras~PiOS(rpi4,rpi5)─/dev/ttyUSB0, ......
  
  USB CDC ACM:USB→MCU內建的USB Peripheral(虛擬UART，但已非bit傳輸，而是packet傳輸)
  　Win7─不支援
  　Win11─COM1, ......
  　Ras~PiOS(rpi4,rpi5)─/dev/ttyACM0, ......
  
  USB JTAG:透過USB直接對MCU偵錯
  　e.q.breakpoint, single step, watch variable
    
  ※rx, tx 衝突問題
    內建序列埠 是 PC 跟 MCU 溝通的管道，thonny與arduino都需要。
    當 gps 模組也要用到 rx, tx 時，就得閃過內建的序列埠。

【gps 模組(neo-6m, neo-7m, neo-m8n, ......)】
  
  neo-6m 抓到衛星時，會閃藍燈。
  neo-m8n 電源導通會有固定紅燈，抓到衛星時，另一個紅燈會閃爍。
  添購時，一定要選有附天線的版本。(通常是陶瓷天線)
  陶瓷天線要遠離雜訊 (mcu, 行動電源, ......)
  
【整合開發環境 ide】

  thonny https://thonny.org/
    
    使用 micropython 語言
    
    工具小而美。寫入的 *.py 檔案可以讀取出來。
    
    win7/win11:到官網下載安裝程式
    Ras~PiOS(rpi4,rpi5):sudo apt install thonny
    
    需要先將 micropython 韌體燒錄到 mcu 中。
  
      https://micropython.org/
      要選對應的 mcu 型號
      esp32 lolin d32 -- 韌體可用
      esp32 c3 supermini -- 韌體可下載，可燒錄，但無法正常使用。
    
  arduino https://www.arduino.cc/ (Products/Arduino IDE)
  
    使用 c++ 語言
    
    工具大很多，但功能較強。
    
    win7:下載舊版來使用 (e.q.arduino 1.8.19)
    win11:下載最新版本並安裝 (e.q.arduino-ide_2.3.8_Windows_64bit.exe)
    Ras~PiOS(rpi4,rpi5):sudo apr install arduino
    
    Arduino IDE
      Board
        (需要用 Boards Manager 下載安裝 Espressif Systems 的 esp32 相關資訊)
        esp32 lolin d32 要選擇 LOLIN D32
        esp32 c3 supermini 要選擇 ESP32C3 Dev Module
      Port
        選擇 COMx 或 ttyUSBx/ttyACMx

【硬體配置】
  
  底板選擇
    1.麵包板＋杜邦線
    2.麵包板＋短導線
    3.萬用板(洞洞板)＋銅線 (電腦纖維萬用板-用這個)(電木PC板-錫黏不住)
    4.PCB(印刷電路板)(EASYEDA+JLCPCB)
  
  外殼挑選
    可到大創、無印良品挑選適合的外殼

  銲接
    電烙鐵 (e.q.日製100W, 臺製40W)
    烙鐵頭 (筆型，刀型)(跟瓦數對應，不能亂買)
    烙鐵架
    錫筆 (含銀錫筆、錫筆)
    鍍錫銅線
    剪刀、小刀
    鑷子
    吸錫線
    
    燈光架+手機架 (老花小幫手)

    麵包板
    排針 (一短一長，兩邊等長)
    
    固定用的硬紙盒
    挖洞器
    螺絲、螺帽
    
    三用電表 (測量有無導通、有無虛銲)

【購買管道-mcu,gps,pcb,其他零件】
  
  shopee 蝦皮 (mcu、gps模組)
  taobao 淘寶 (mcu、gps模組)
  
  tlcpcb 嘉立創 (pcb板)
  
  easyway (若是境外產品，需要授權，可能要付稅金)

  今華電子 www.jin-hua.com.tw (螺絲、螺帽、洞洞板、電烙鐵、松香、......)

【印刷電路板 PCB】
 
 先到 EASYEDA 去畫圖 (https://www.easyeda.com/)，
 之後將圖送到 嘉立創科技 JLCPCB，就可以開始生產。(最低製作量五片)
 
 余光正先生分享的影片非常有用，可以參考。
 https://www.youtube.com/watch?v=PpreFVlSHhQ
 使用EasyEDA Layout電路板(最簡易教學)
 
 第一次嘗試，從畫圖送出到收件，大約是八天，很興奮！

  商品總計： $2.00 USD
  運　　費： $2.88 USD
  訂單總額： $4.88 USD 
 
 底下是自己第一次的送件記錄。
 
 生產進度
 預計完成時間：2026-05-06 21:57
 
 2026-04-30 22:50:03 MI
 2026-05-01 01:36:30 Drilling
 2026-05-01 03:10:03 Copper Deposition
 2026-05-01 04:01:03 Image the outer layers
 2026-05-01 06:26:41 Pattern Plating
 2026-05-01 06:47:15 Automatic Optical Inspection(AOI)
 2026-05-01 17:01:31 Solder Mask
 2026-05-01 20:29:14 Silkscreen
 2026-05-01 21:13:01 Hot Air Solder Leveling(HASL)
 2026-05-01 21:45:03 Automatic Visual Inspection
 2026-05-02 01:05:37 Electrical Test
 2026-05-02 04:30:40 Profiling,V-cut scoring
 2026-05-02 05:37:31 Final inspection
 2026-05-03 14:12:44 From workshop to warehouse
 
 貨運追蹤
 
 2026-05-03 14:12:44 Packaged,waiting for pick up by the carrier,Tracking #: SF02287........
 2026-05-03 16:47:37 The shipment has been collected by SF Express
 2026-05-03 17:46:06 Export or import needed information still waiting to be provided or checked,Please wait patiently.
 2026-05-04 10:59:55 Shipment loaded at 【Zhuhai Sancun Service Point】, prepare to send to 【Zhongshan Sanjiao Distribution Center】
 2026-05-04 11:08:37 The shipment has departed from 【Zhuhai Sancun Service Point】 ,has been sent to 【Zhongshan Sanjiao Distribution Center】
 2026-05-04 13:10:17 The shipment has arrived at 【Zhongshan Sanjiao Distribution Center】（Transfer）
 2026-05-04 18:29:51 Shipment loaded at 【Zhongshan Sanjiao Distribution Center】, prepare to send to 【CN Guangdong Province Hourui Distribution Center】
 2026-05-04 23:18:45 The shipment has departed from 【Zhongshan Sanjiao Distribution Center】 ,has been sent to 【CN Guangdong Province Hourui Distribution Center】
 2026-05-05 05:15:53 The shipment has arrived at【CN Guangdong Province Hourui Distribution Center】
 2026-05-05 05:53:43 Shipment loaded at 【CN Guangdong Province Hourui Distribution Center】, prepare to send to next station
 2026-05-05 20:18:59 Under customs clearance, please wait patiently.
 2026-05-06 09:27:47 Under customs clearance, please wait patiently.
 2026-05-06 10:55:18 The shipment has arrived at【Taiwan Customs Group】
 2026-05-06 10:55:19 The shipment has departed from Taiwan Customs Group ,has been sent to Taiwan Taoyuan Hub
 2026-05-06 11:10:52 The shipment has arrived atTaiwan Taoyuan Hub
 2026-05-06 14:05:45 In transit
 2026-05-06 19:41:12 The shipment has arrived at【Taiwan Changhua Hub】
 2026-05-06 19:42:50 In transit
 2026-05-07 06:38:02 The shipment has arrived at【Wuri Distribution Center，Address：南区复兴路一段207巷15弄68号】
 2026-05-07 08:47:37 The shipment has been handed over to and is being delivered by 乘騎-烏日1 (contact number: 0930....... Please answer the call at ease as your privacy is properly protected by "safety call"!)
 2026-05-07 16:17:26 Signed by 3rd party (門衛). Thank you for using SF Express. Looking forward to serving you again.

arduino

#define iLED_esp32_c3_supermini 8
#define iLED_esp32_lolin_d32 5

int iLED=iLED_esp32_c3_supermini;

void setup() 
{
  pinMode(iLED, OUTPUT);
}

void loop()
{
  digitalWrite(iLED, HIGH);
  delay(500);

  digitalWrite(iLED, LOW);
  delay(500);
}

micropython

from machine import Pin
from time import sleep

# esp32 lolin d32 ledpin=5

led=Pin(5, Pin.OUT)

while True:

  led.value(1)
  sleep(0.5)      # Wait 0.5 seconds

  led.value(0)
  sleep(0.5)      # Wait 0.5 seconds