'board_android-IoT'에 해당되는 글 87건

  1. 2024.10.29 :: Compile on both ESP32 and ESP8266
  2. 2024.10.29 :: STM Flash loader 1
  3. 2024.10.12 :: Keil, uVision , Compile size check
  4. 2024.09.20 :: LTE modem sample
  5. 2024.09.10 :: ESP32 UDP SEND_RECV example
  6. 2024.09.06 :: ESP32 UDP SEND_RECV example
board_android-IoT/ESP32 2024. 10. 29. 23:21

Compile on both ESP32 and ESP8266

 

-

#if defined(ESP8266)
#pragma message "ESP8266 stuff happening!"
#elif defined(ESP32)
#pragma message "ESP32 stuff happening!"
#else
#error "This ain't a ESP8266 or ESP32, dumbo!"
#endif

 

https://community.platformio.org/t/compile-on-both-esp32-and-esp8266/14356

 

Compile on both ESP32 and ESP8266

what is the best way to #ifdef ESP32 and #ifdef ESP8266 is there some variable I can use to ifdef some part of the code in case using esp8266 and some part in case I use esp32? thanks

community.platformio.org

 

 

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ESP32 UDP SEND_RECV example  (0) 2024.09.06
ESP8266 , DB18B20 connection  (0) 2024.07.29
posted by cskimair
:
board_android-IoT/STM32F 2024. 10. 29. 18:10

STM Flash loader

 

 

-

https://blog.naver.com/PostView.naver?blogId=ansdbtls4067&logNo=221510145642&parentCategoryNo=&categoryNo=&viewDate=&isShowPopularPosts=false&from=postView

 

STM32F429I-DISC1 보드의 MCU 내장 Bootloader를 이용한 펌웨어 다운로드 - 2

안녕하세요? 땜쓰 전자연구소의 소장 땜쓰입니다. 이번 포스팅에서는 지난 포스팅인 "STM32F429I...

blog.naver.com

 

 

-

https://www.st.com/en/development-tools/flasher-stm8.html

 

FLASHER-STM8 - STMicroelectronics

FLASHER-STM8 - STM8 Flash loader demonstrator (UM0462), FLASHER-STM8, STMicroelectronics

www.st.com

 

 

 

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LTE modem sample  (0) 2024.09.20
SWO (Serial Wire Output) setting  (2) 2024.07.23
posted by cskimair
:
board_android-IoT/STM32F 2024. 10. 12. 13:27

Keil, uVision , Compile size check

- Keil, uVision5 , how to check compile code size limit  check

> Flash size: Code + RO-data + RW-data

 

#W7500_compile_size_check  #STM32_compile_size_check #W7500

컴파일 데이타배치


Program Size: Code=10608 RO-data=268 RW-data=80 ZI-data=1632  
컴파일하면 결과가 이럻게 나오는데
 
싸이즈
1. ZI Data: Zero Initialized Data
2. RO Data are the constants.
Total RAM Size = RW Data + ZI Data
Total ROM Size = Code + RO Data + RW Data

https://blog.naver.com/gauya/220129979980

 

Keil, uVision5

  - 컴파일 데이타배치 Program Size: Code=10608 RO-data=268 RW-data=80 ZI-data=1632 &nb...

blog.naver.com

 

 

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posted by cskimair
:
board_android-IoT/STM32F 2024. 9. 20. 14:46

LTE modem sample

 

- 개발보드:

https://ko.aliexpress.com/item/1005005675389969.html?spm=a2g0o.productlist.main.17.4adf4f10y9Q0el&algo_pvid=5dc88406-ce16-48a2-98c9-2ee7fecdf5fd&algo_exp_id=5dc88406-ce16-48a2-98c9-2ee7fecdf5fd-8&pdp_npi=4%40dis%21KRW%2121350%2121350%21%21%21110.10%21110.10%21%40210133e017268091133244640efca3%2112000033977202674%21sea%21KR%21177274289%21X&curPageLogUid=8pqk0V6Yza92&utparam-url=scene%3Asearch%7Cquery_from%3A

 

GSM 모듈 개발 코어 보드 TTL 직렬 포트 포함, A7670E, A7670SA, A7670G, A7672S, 4G Cat 1 - AliExpress 30

Smarter Shopping, Better Living! Aliexpress.com

ko.aliexpress.com

 

 

- 비교

Github 링크:

https://github.com/Xinyuan-LilyGO/LilyGO-T-A7670X

 

GitHub - Xinyuan-LilyGO/LilyGO-T-A76XX: LilyGo A7670X A7608X SIM7670G series

LilyGo A7670X A7608X SIM7670G series. Contribute to Xinyuan-LilyGO/LilyGO-T-A76XX development by creating an account on GitHub.

github.com

 

-

https://ko.aliexpress.com/item/1005003036514769.html?spm=a2g0o.tm1000010823.d2.1.7a1f11b5TisSrJ&pvid=c4ccf7a3-10c5-4cd7-9c27-23ec29976b0f&pdp_ext_f=%7B%22ship_from%22:%22%22,%22sku_id%22:%2212000023370187237%22%7D&scm=1007.51228.386262.0&scm-url=1007.51228.386262.0&scm_id=1007.51228.386262.0&pdp_npi=4%40dis%21KRW%21%E2%82%A9%2050%2C333%21%E2%82%A9%2045%2C300%21%21%2136.78%2133.10%21%402101584d17268087425621075e96ae%2112000023370187237%21gdf%21KR%21177274289%21X&channel=bigSave&aecmd=true&_gl=1*fabh5i*_gcl_au*MTQyNTg4MjI5LjE3MjEwOTg5MTI.*_ga*NDA0MjEyMjk5LjE3MTMyMzM2MzM.*_ga_VED1YSGNC7*MTcyNjgwODUyMi4xMDAuMS4xNzI2ODA4OTE1LjYwLjAuMA..

 

LILYGO® TTGO T-A7670G/E/SA R2 4G 개발 보드 LTE CAT1 SIM 모듈 ESP32 지원 GSM/GPRS/EDGE TF 카드 A7670G A7670E A7670SA -

Smarter Shopping, Better Living! Aliexpress.com

ko.aliexpress.com

 

- 기존모뎀:

-

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posted by cskimair
:
board_android-IoT/ESP32 2024. 9. 10. 00:24

ESP32 UDP SEND_RECV example

 

- ESP32 - Arduino source

/*
 *  This sketch sends random data over UDP on a ESP32 device
 *
 */
#include <WiFi.h>
#include <NetworkUdp.h>
/*
8:28:24.965 -> entry 0x403c98ac
18:28:25.120 -> Connecting to WiFi network: Csk6457
18:28:25.214 -> Waiting for WIFI connection...
18:28:25.297 -> WiFi connected! IP address: 192.168.43.217
18:28:27.178 -> UDP recv=0
18:28:29.218 -> UDP recv=217
*/
// WiFi network name and password:
const char *networkName = "Csk6457";
const char *networkPswd = "1q2w3e4r@";

//IP address to send UDP data to:
// either use the ip address of the server or
// a network broadcast address
const char *udpAddress = "192.168.43.1";  //"192.168.0.255";
const int udpPort = 56680;
const int localPort = udpPort ; 


//Are we currently connected?
boolean connected = false;

//The udp library class
NetworkUDP udp;
char packetBuffer[255];

void setup() {
  // Initialize hardware serial:
  Serial.begin(115200);

  //Connect to the WiFi network
  connectToWiFi(networkName, networkPswd);
}
int packetSize ; 
unsigned long testIDPrev  ; 
unsigned long interval = 2000 ; //2000= 2 seconds

void loop() {
  //only send data when connected
  if (connected) {
    unsigned long testID = millis();

    if( testID - testIDPrev >= interval ){
      testIDPrev = testID ;
      //Send a packet
      udp.beginPacket(udpAddress, udpPort);
      udp.printf("Since boot: %lu(ms)\n", millis() ); // millis() / 1000);
      udp.endPacket();

      // receive packets 
      packetSize = udp_readPackets() ; 
      
    }

  }
  //Wait for 2 second
  //delay(2000);
}
int packetSizePrev ; 
int udp_readPackets()
{
  int packetSize   ; 

  packetSize = udp.parsePacket();
  if (packetSize> 0 ) {
    Serial.print(" Received packet from : ");
    Serial.println(udp.remoteIP());
    Serial.print(" Size : ");
    Serial.println(packetSize);

    int len = udp.read(packetBuffer, 255);
    if (len > 0) packetBuffer[len - 1] = 0;
    Serial.printf("[client<-server]Recv Data: %s\n", packetBuffer);
  }

  if( packetSize != packetSizePrev ) {
    packetSizePrev = packetSize ; 
    Serial.printf("UDP recv=%d\n", packetSize) ; 
  }


  return  packetSize  ; 
}

void connectToWiFi(const char *ssid, const char *pwd) {
  Serial.println("Connecting to WiFi network: " + String(ssid));

  // delete old config
  WiFi.disconnect(true);
  //register event handler
  WiFi.onEvent(WiFiEvent);  // Will call WiFiEvent() from another thread.

  //Initiate connection
  WiFi.begin(ssid, pwd);

  Serial.println("Waiting for WIFI connection...");
}

// WARNING: WiFiEvent is called from a separate FreeRTOS task (thread)!
void WiFiEvent(WiFiEvent_t event) {
  switch (event) {
    case ARDUINO_EVENT_WIFI_STA_GOT_IP:
      //When connected set
      Serial.print("WiFi connected! IP address: ");
      Serial.println(WiFi.localIP());
      //initializes the UDP state
      //This initializes the transfer buffer
      udp.begin(WiFi.localIP(), udpPort);
      connected = true;

      udp.begin(localPort); //20240906-1 
      break;
    case ARDUINO_EVENT_WIFI_STA_DISCONNECTED:
      Serial.println("WiFi lost connection");
      connected = false;
      break;
    default: break;
  }
}

 

 

- 스마트폰에서 ESP32 로 UDP통신을 하는 화면

 

 

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posted by cskimair
:
board_android-IoT/ESP32 2024. 9. 6. 18:47

ESP32 UDP SEND_RECV example

 

- ESP32 - Arduino source

/*
 *  This sketch sends random data over UDP on a ESP32 device
 *
 */
#include <WiFi.h>
#include <NetworkUdp.h>
/*
8:28:24.965 -> entry 0x403c98ac
18:28:25.120 -> Connecting to WiFi network: Csk6457
18:28:25.214 -> Waiting for WIFI connection...
18:28:25.297 -> WiFi connected! IP address: 192.168.43.217
18:28:27.178 -> UDP recv=0
18:28:29.218 -> UDP recv=217
*/
// WiFi network name and password:
const char *networkName = "Csk6457";
const char *networkPswd = "1q2w3e4r@";

//IP address to send UDP data to:
// either use the ip address of the server or
// a network broadcast address
const char *udpAddress = "192.168.43.1";  //"192.168.0.255";
const int udpPort = 56680;
const int localPort = udpPort ; 


//Are we currently connected?
boolean connected = false;

//The udp library class
NetworkUDP udp;
char packetBuffer[255];

void setup() {
  // Initialize hardware serial:
  Serial.begin(115200);

  //Connect to the WiFi network
  connectToWiFi(networkName, networkPswd);
}
int packetSize ; 
unsigned long testIDPrev  ; 
unsigned long interval = 2000 ; //2000= 2 seconds

void loop() {
  //only send data when connected
  if (connected) {
    unsigned long testID = millis();

    if( testID - testIDPrev >= interval ){
      testIDPrev = testID ;
      //Send a packet
      udp.beginPacket(udpAddress, udpPort);
      udp.printf("Since boot: %lu(ms)\n", millis() ); // millis() / 1000);
      udp.endPacket();

      // receive packets 
      packetSize = udp_readPackets() ; 
      
    }

  }
  //Wait for 2 second
  //delay(2000);
}
int packetSizePrev ; 
int udp_readPackets()
{
  int packetSize   ; 

  packetSize = udp.parsePacket();
  if (packetSize> 0 ) {
    Serial.print(" Received packet from : ");
    Serial.println(udp.remoteIP());
    Serial.print(" Size : ");
    Serial.println(packetSize);

    int len = udp.read(packetBuffer, 255);
    if (len > 0) packetBuffer[len - 1] = 0;
    Serial.printf("[client<-server]Recv Data: %s\n", packetBuffer);
  }

  if( packetSize != packetSizePrev ) {
    packetSizePrev = packetSize ; 
    Serial.printf("UDP recv=%d\n", packetSize) ; 
  }


  return  packetSize  ; 
}

void connectToWiFi(const char *ssid, const char *pwd) {
  Serial.println("Connecting to WiFi network: " + String(ssid));

  // delete old config
  WiFi.disconnect(true);
  //register event handler
  WiFi.onEvent(WiFiEvent);  // Will call WiFiEvent() from another thread.

  //Initiate connection
  WiFi.begin(ssid, pwd);

  Serial.println("Waiting for WIFI connection...");
}

// WARNING: WiFiEvent is called from a separate FreeRTOS task (thread)!
void WiFiEvent(WiFiEvent_t event) {
  switch (event) {
    case ARDUINO_EVENT_WIFI_STA_GOT_IP:
      //When connected set
      Serial.print("WiFi connected! IP address: ");
      Serial.println(WiFi.localIP());
      //initializes the UDP state
      //This initializes the transfer buffer
      udp.begin(WiFi.localIP(), udpPort);
      connected = true;

      udp.begin(localPort); //20240906-1 
      break;
    case ARDUINO_EVENT_WIFI_STA_DISCONNECTED:
      Serial.println("WiFi lost connection");
      connected = false;
      break;
    default: break;
  }
}

 

 

- 스마트폰에서 ESP32 로 UDP통신을 하는 화면

 

 

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posted by cskimair
:

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