Author Archives: admin

Без рубрики

Web Weather Station

Posted on 15.02.201722.09.2019 by admin

Title

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124

#include <ESP8266WiFi.h> #include <WiFiClient.h> #include <ESP8266WebServer.h> #include <ESP8266mDNS.h>   #include "DHT.h"   #include <Wire.h> #include <SPI.h> #include <Adafruit_Sensor.h> #include <Adafruit_BMP280.h>   #include <SoftwareSerial.h>; SoftwareSerial mySerial(14, 12); // RX, TX     DHT dht(2, 22); // GPIO , Type Adafruit_BMP280 bmp280;   MDNSResponder mdns; const char* ssid = "SSID"; const char* password = "passwd"; ESP8266WebServer server(80);   byte request[9] = {0xFF,0x01,0x86,0x00,0x00,0x00,0x00,0x00,0x79}; unsigned char response[9];   String webPage = ""; int test_pin = 16;   char dht_Temperature[5]; char dht_Humidity [5]; char dht_HeatIndex [5];   char bmp280_Temperature[5]; char bmp280_Pressure[6];     void setup(void){   delay(1000);   Serial.begin(9600);   mySerial.begin(9600);   dht.begin();   bmp280.begin();     WiFi.begin(ssid, password);   Serial.println("");   // Wait for connection   while (WiFi.status() != WL_CONNECTED) {     delay(500);     Serial.print(".");   }   Serial.println("");   Serial.print("Connected to ");   Serial.println(ssid);   Serial.print("IP address: ");   Serial.println(WiFi.localIP());      if (mdns.begin("esp8266", WiFi.localIP())) {     Serial.println("MDNS responder started");   }      server.on("/", [](){     WebBuild();     server.send(200, "text/html", webPage);   });   server.begin();   Serial.println("HTTP server started"); } void loop(void){   server.handleClient(); }     void WebBuild() {     dtostrf(dht.readTemperature(), 3, 2, dht_Temperature);   dtostrf(dht.readHumidity(), 3, 2, dht_Humidity);   dtostrf(dht.computeHeatIndex(dht.readTemperature(),dht.readHumidity(),false), 3, 2, dht_HeatIndex);     dtostrf(bmp280.readTemperature(), 3, 2, bmp280_Temperature);   dtostrf(bmp280.readPressure()*0.007500617, 3, 2, bmp280_Pressure);      webPage = "<p>G1Tech: Web Weather Station</p>";   webPage += "<p>DHT22</p>";   webPage += "<p>   Temperature: "+String(dht_Temperature)+"C</p>";   webPage += "<p>   HeatIndex: "+String(dht_HeatIndex)+"C</p>";   webPage += "<p>   Humidity: "+String(dht_Humidity)+"%</p>";   webPage += "<p>BMP280</p>";   webPage += "<p>   Temperature: "+String(bmp280_Temperature)+"C</p>";   webPage += "<p>   Pressure: "+String(bmp280_Pressure)+"mmHg</p>";     webPage += "<p>MH-Z19</p>";   webPage += "<p>   CO2: "+callCO2()+"ppm</p>";        }   String callCO2(){   char mhz19_CO2[4];     mySerial.write(request, 9);   memset(response, 0, 9);   mySerial.readBytes(response, 9);     int i;   byte crc = 0;   for (i = 1; i < 8; i++) crc+=response[i];   crc = 255 - crc;   crc++;   if ( !(response[0] == 0xFF && response[1] == 0x86 && response[8] == crc) ) {     return "Err: invalid CRC";     } else {     unsigned int HLconcentration = (unsigned int) response[2];     unsigned int LLconcentration = (unsigned int) response[3];     unsigned int co2 = (256*HLconcentration) + LLconcentration;     Serial.println(co2);     dtostrf(co2, 4, 0, mhz19_CO2);     return String(mhz19_CO2);     } }

[collapse]

Без рубрики

ESP8266 Web Server

Posted on 15.02.201722.09.2019 by admin

Title

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66

#include <ESP8266WiFi.h> #include <WiFiClient.h> #include <ESP8266WebServer.h> #include <ESP8266mDNS.h>   MDNSResponder mdns;   // Replace with your network credentials const char* ssid = "SSID"; const char* password = "Passwd";   ESP8266WebServer server(80);   String webPage = ""; int test_pin = 16;   void setup(void){   webPage += "<h1>G1Tech: ESP8266 Web Server</h1><p>LED #16 <a href=\"LEDOn\"><button>ON</button></a>&nbsp;<a href=\"LEDOff\"><button>OFF</button></a></p>";      pinMode(test_pin, OUTPUT);   digitalWrite(test_pin, LOW);     delay(1000);   Serial.begin(9600);   WiFi.begin(ssid, password);   Serial.println("");     // Wait for connection   while (WiFi.status() != WL_CONNECTED) {     delay(500);     Serial.print(".");   }   Serial.println("");   Serial.print("Connected to ");   Serial.println(ssid);   Serial.print("IP address: ");   Serial.println(WiFi.localIP());      if (mdns.begin("esp8266", WiFi.localIP())) {     Serial.println("MDNS responder started");   }      server.on("/", [](){     server.send(200, "text/html", webPage);   });   server.on("/LEDOn", [](){     server.send(200, "text/html", webPage);     digitalWrite(test_pin, LOW);     Serial.println(digitalRead(test_pin));     delay(1000);   });   server.on("/LEDOff", [](){     server.send(200, "text/html", webPage);     digitalWrite(test_pin, HIGH);     Serial.println(digitalRead(test_pin));     delay(1000);   });     server.begin();   Serial.println("HTTP server started"); } void loop(void){   server.handleClient(); }

[collapse]

Без рубрики

Датчик атмосферного давления и температуры BMP280

Posted on 21.01.201722.09.2019 by admin

 

BMP280

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

#include <Wire.h> #include <SPI.h> #include <Adafruit_Sensor.h> #include <Adafruit_BMP280.h>   #define BMP_SCK 13 #define BMP_MISO 12 #define BMP_MOSI 11 #define BMP_CS 10   //Adafruit_BMP280 bme; // I2C //Adafruit_BMP280 bme(BMP_CS); // hardware SPI Adafruit_BMP280 bme(BMP_CS, BMP_MOSI, BMP_MISO,  BMP_SCK);    void setup() {   Serial.begin(9600);   Serial.println(F("BMP280 test"));      if (!bme.begin()) {       Serial.println("Could not find a valid BMP280 sensor, check wiring!");     while (1);   } }    void loop() {     Serial.print("Temperature = ");     Serial.print(bme.readTemperature());     Serial.println(" *C");          Serial.print("Pressure = ");     Serial.print(bme.readPressure());     Serial.println(" Pa");       Serial.print("Approx altitude = ");     Serial.print(bme.readAltitude(1013.25)); // this should be adjusted to your local forcase     Serial.println(" m");          Serial.println();     delay(2000); }

[collapse]

Без рубрики

Беспроводная связь Arduino радиомодулями nRF24L01+ на 2.4GHz

Posted on 16.01.201722.09.2019 by admin

server

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44

#include <SPI.h> #include <RH_NRF24.h>   RH_NRF24 nrf24;   void setup() {   Serial.begin(9600);   while (!Serial)     ; // wait for serial port to connect. Needed for Leonardo only   if (!nrf24.init())     Serial.println("init failed");   // Defaults after init are 2.402 GHz (channel 2), 2Mbps, 0dBm   if (!nrf24.setChannel(1))     Serial.println("setChannel failed");   if (!nrf24.setRF(RH_NRF24::DataRate2Mbps, RH_NRF24::TransmitPower0dBm))     Serial.println("setRF failed");     }   void loop() {   if (nrf24.available())   {     // Should be a message for us now       uint8_t buf[RH_NRF24_MAX_MESSAGE_LEN];     uint8_t len = sizeof(buf);     if (nrf24.recv(buf, &len))     { //      NRF24::printBuffer("request: ", buf, len);       Serial.print("got request: ");       Serial.println((char*)buf);              // Send a reply       uint8_t data[] = "And hello back to you";       nrf24.send(data, sizeof(data));       nrf24.waitPacketSent();       Serial.println("Sent a reply");     }     else     {       Serial.println("recv failed");     }   } }

[collapse]

 

client

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

#include <SPI.h> #include <RH_NRF24.h>   RH_NRF24 nrf24;   void setup() {   Serial.begin(9600);   while (!Serial)     ; // wait for serial port to connect. Needed for Leonardo only   if (!nrf24.init())     Serial.println("init failed");   // Defaults after init are 2.402 GHz (channel 2), 2Mbps, 0dBm   if (!nrf24.setChannel(1))     Serial.println("setChannel failed");   if (!nrf24.setRF(RH_NRF24::DataRate2Mbps, RH_NRF24::TransmitPower0dBm))     Serial.println("setRF failed");     }     void loop() {   Serial.println("Sending to nrf24_server");   // Send a message to nrf24_server   uint8_t data[] = "Hello World!";   nrf24.send(data, sizeof(data));      nrf24.waitPacketSent();   // Now wait for a reply   uint8_t buf[RH_NRF24_MAX_MESSAGE_LEN];   uint8_t len = sizeof(buf);     if (nrf24.waitAvailableTimeout(500))   {     // Should be a reply message for us now       if (nrf24.recv(buf, &len))     {       Serial.print("got reply: ");       Serial.println((char*)buf);     }     else     {       Serial.println("recv failed");     }   }   else   {     Serial.println("No reply, is nrf24_server running?");   }   delay(400); }

[collapse]

Без рубрики

Обзор инфракрасного датчика CO2 MH-Z19

Posted on 15.01.201722.09.2019 by admin

CO2

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

#include <SoftwareSerial.h>;   SoftwareSerial mySerial(2, 3); // RX, TX   byte request[9] = {0xFF,0x01,0x86,0x00,0x00,0x00,0x00,0x00,0x79}; unsigned char response[9];   void setup() {   Serial.begin(9600);   mySerial.begin(9600); }   void loop() {   mySerial.write(request, 9);   memset(response, 0, 9);   mySerial.readBytes(response, 9);   int i;   byte crc = 0;   for (i = 1; i < 8; i++) crc+=response[i];   crc = 255 - crc;   crc++;     if ( !(response[0] == 0xFF && response[1] == 0x86 && response[8] == crc) ) {     Serial.println("CRC error");   } else {     unsigned int HLconcentration = (unsigned int) response[2];     unsigned int LLconcentration = (unsigned int) response[3];     unsigned int co2 = (256*HLconcentration) + LLconcentration;        Serial.println(co2);     for (i = 0; i < 9; i++) {       Serial.print("0x");       Serial.print(response[i],HEX);       Serial.print("  ");     }     Serial.println("  ");        }   delay(5000); }

[collapse]

Без рубрики

Датчик тока YHDC SCT-013-000

Posted on 12.01.201722.09.2019 by admin

Без рубрики

Управляем и передаем данные с ESP8266 по протоколу MQTT

Posted on 02.01.201722.09.2019 by admin

Code

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

#include <ESP8266WiFi.h> #include "Adafruit_MQTT.h" #include "Adafruit_MQTT_Client.h"   // Setup Wi-Fi #define WLAN_SSID       "...SSID..." #define WLAN_PASS       "...PASSWD..."   // Setup Adafruit.io #define AIO_SERVER      "io.adafruit.com" #define AIO_SERVERPORT  1883                   #define AIO_USERNAME    "...IO.Adafruit - login..." #define AIO_KEY         "... AIO KEY..."   // Create WiFiClient class to connect to the MQTT server. WiFiClient client;   // Setup the MQTT client class by passing in the WiFi client and MQTT server and login details. Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_KEY);   // Setup a feed called 'A0' for publishing. Adafruit_MQTT_Publish AnalogPort0 = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/AnalogPort0");   // Setup a feed called 'onoff' for subscribing to changes. Adafruit_MQTT_Subscribe onoffbutton = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/feeds/onoff");   void MQTT_connect();   void setup() {   Serial.begin(9600);   delay(10);     // Connect to WiFi access point.   Serial.println();   Serial.print("Connecting to ");   Serial.println(WLAN_SSID);     WiFi.begin(WLAN_SSID, WLAN_PASS);   while (WiFi.status() != WL_CONNECTED) {     delay(500);     Serial.print(".");   }   Serial.println();     Serial.println("WiFi connected");      // Setup MQTT subscription for onoff feed.   mqtt.subscribe(&onoffbutton); }   int AnalogPort0Value=0;   void loop() {     MQTT_connect();     Adafruit_MQTT_Subscribe *subscription;   while ((subscription = mqtt.readSubscription(5000))) {     if (subscription == &onoffbutton) {       Serial.print(F("Got: "));       Serial.println((char *)onoffbutton.lastread);     }   }     // Now we can publish stuff!   Serial.print(F("\nSending A0 val "));   AnalogPort0Value = analogRead(A0);   Serial.print(AnalogPort0Value);   Serial.print("...");   if (! AnalogPort0.publish(AnalogPort0Value)) {     Serial.println(F("Failed"));   } else {     Serial.println(F("OK!"));   }      }   // Function to connect and reconnect as necessary to the MQTT server. void MQTT_connect() {   int8_t ret;   // Stop if already connected.   if (mqtt.connected()) {     return;   }   Serial.print("Connecting to MQTT... ");   uint8_t retries = 3;   while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected        Serial.println(mqtt.connectErrorString(ret));        Serial.println("Retrying MQTT connection in 5 seconds...");        mqtt.disconnect();        delay(5000);          retries--;        if (retries == 0) {          while (1);        }   }   Serial.println("MQTT Connected!"); }

[collapse]

Без рубрики

Обзор инфракрасного датчика CO2 MH-Z19

Posted on 02.01.201722.09.2019 by admin

Code

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

#include <SoftwareSerial.h>;   SoftwareSerial mySerial(2, 3); // RX, TX   byte request[9] = {0xFF,0x01,0x86,0x00,0x00,0x00,0x00,0x00,0x79}; unsigned char response[9];   void setup() {   Serial.begin(9600);   mySerial.begin(9600); }   void loop() {   mySerial.write(request, 9);   memset(response, 0, 9);   mySerial.readBytes(response, 9);   int i;   byte crc = 0;   for (i = 1; i < 8; i++) crc+=response[i];   crc = 255 - crc;   crc++;     if ( !(response[0] == 0xFF && response[1] == 0x86 && response[8] == crc) ) {     Serial.println("CRC error");   } else {     unsigned int HLconcentration = (unsigned int) response[2];     unsigned int LLconcentration = (unsigned int) response[3];     unsigned int co2 = (256*HLconcentration) + LLconcentration;        Serial.println(co2);     for (i = 0; i < 9; i++) {       Serial.print("0x");       Serial.print(response[i],HEX);       Serial.print("  ");     }     Serial.println("  ");        }   delay(5000); }

[collapse]

Без рубрики

Ruspberry PI Zero vs Orange PI Zero

Posted on 23.12.201622.09.2019 by admin

Без рубрики

Обзор GSM/GPRS модема SIM800L

Posted on 22.12.201622.09.2019 by admin

• 1
• 2
• 3