tecnologia:iot:esp32_post
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ESP32 POST
Consumo con deep sleep: 0.013A
Queremos hacer la lectura de un valor y enviarlo por post. Empezamos por la plantilla de OTA:
#include <WiFi.h>
#include <ESPAsyncWebServer.h>
#include <AsyncElegantOTA.h>
const char* ssid = "mi_red_wifi";
const char* password = "mi_contraseña_wifi";
IPAddress ip(192,168,1,69);
IPAddress gateway(192,168,1,1);
IPAddress subnet(255,255,255,0);
IPAddress dns(8,8,8,8);
AsyncWebServer server(80);
void setup() {
Serial.begin(115200);
delay(10);
Serial.println('\n');
WiFi.begin(ssid, password);
WiFi.config(ip, gateway, subnet, dns);
Serial.print("Conectando a ");
Serial.print(ssid);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print('.');
}
Serial.println('\n');
Serial.println("Conectado correctamente");
Serial.print("IP:\t");
Serial.println(WiFi.localIP());
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) {
request->send(200, "text/plain", "V1.0 Primer OTA");
});
AsyncElegantOTA.begin(&server); // Start AsyncElegantOTA
server.begin();
Serial.println("HTTP server started");
delay(1000);
}
void loop() {
}
Aladimos que haga un post. El tiempo hay que poner el incial igual al final, para que haga una nada mas empezar y luego se espere el tiempo que queramos, en este caso 1 hora
#include <WiFi.h>
#include <ESPAsyncWebServer.h>
#include <AsyncElegantOTA.h>
#include <HTTPClient.h>
const char* ssid = "pitufina";
const char* password = "reyvisigodo";
IPAddress ip(192,168,1,79);
IPAddress gateway(192,168,1,1);
IPAddress subnet(255,255,255,0);
IPAddress dns(8,8,8,8);
AsyncWebServer server(80);
//Your Domain name with URL path or IP address with path
String serverName = "http://bateriaseko.lobo99.com/agua.php";
// the following variables are unsigned longs because the time, measured in
// milliseconds, will quickly become a bigger number than can be stored in an int.
unsigned long lastTime = 3600000;
// Timer set to 10 minutes (600000)
//unsigned long timerDelay = 600000;
// Set timer to 5 seconds (5000)
unsigned long timerDelay = 3600000;
void setup() {
Serial.begin(115200);
delay(10);
Serial.println('\n');
WiFi.begin(ssid, password);
WiFi.config(ip, gateway, subnet, dns);
Serial.print("Conectando a ");
Serial.print(ssid);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print('.');
}
Serial.println('\n');
Serial.println("Conectado correctamente");
Serial.print("IP:\t");
Serial.println(WiFi.localIP());
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) {
request->send(200, "text/plain", "V1.0 Primer OTA");
});
AsyncElegantOTA.begin(&server); // Start AsyncElegantOTA
server.begin();
Serial.println("HTTP server started");
delay(1000);
}
void loop() {
if ((millis() - lastTime) > timerDelay) {
//Check WiFi connection status
if(WiFi.status()== WL_CONNECTED){
HTTPClient http;
String serverPath = serverName + "?agua=24";
// Your Domain name with URL path or IP address with path
http.begin(serverPath.c_str());
// Send HTTP GET request
int httpResponseCode = http.GET();
if (httpResponseCode>0) {
Serial.print("HTTP Response code: ");
Serial.println(httpResponseCode);
String payload = http.getString();
Serial.println(payload);
}
else {
Serial.print("Error code: ");
Serial.println(httpResponseCode);
}
// Free resources
http.end();
}
else {
Serial.println("WiFi Disconnected");
}
lastTime = millis();
}
}
Añadimos la lectura para que la envíe en el POST:
#include <WiFi.h>
#include <ESPAsyncWebServer.h>
#include <AsyncElegantOTA.h>
#include <HTTPClient.h>
const char* ssid = "pitufina";
const char* password = "reyvisigodo";
IPAddress ip(192,168,1,79);
IPAddress gateway(192,168,1,1);
IPAddress subnet(255,255,255,0);
IPAddress dns(8,8,8,8);
AsyncWebServer server(80);
//Your Domain name with URL path or IP address with path
String serverName = "http://bateriaseko.lobo99.com/agua.php";
// the following variables are unsigned longs because the time, measured in
// milliseconds, will quickly become a bigger number than can be stored in an int.
unsigned long lastTime = 3600000;
// Timer set to 10 minutes (600000)
//unsigned long timerDelay = 600000;
// Set timer to 5 seconds (5000)
unsigned long timerDelay = 3600000;
///////////////////////////////////////////////
//// /////
//// Variables lector ultrasonido /////
//// /////
///////////////////////////////////////////////
const int trigPin = 5;
const int echoPin = 18;
//define sound speed in cm/uS
#define SOUND_SPEED 0.034
#define CM_TO_INCH 0.393701
long duration;
float distanceCm;
float distanceInch;
void setup() {
Serial.begin(115200);
delay(10);
Serial.println('\n');
// Definimos pin ultrasonido
pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
pinMode(echoPin, INPUT); // Sets the echoPin as an Input
WiFi.begin(ssid, password);
WiFi.config(ip, gateway, subnet, dns);
Serial.print("Conectando a ");
Serial.print(ssid);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print('.');
}
Serial.println('\n');
Serial.println("Conectado correctamente");
Serial.print("IP:\t");
Serial.println(WiFi.localIP());
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) {
request->send(200, "text/plain", "V1.0 Primer OTA");
});
AsyncElegantOTA.begin(&server); // Start AsyncElegantOTA
server.begin();
Serial.println("HTTP server started");
delay(1000);
}
void loop() {
// Clears the trigPin
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
// Sets the trigPin on HIGH state for 10 micro seconds
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
// Reads the echoPin, returns the sound wave travel time in microseconds
duration = pulseIn(echoPin, HIGH);
// Calculate the distance
distanceCm = duration * SOUND_SPEED/2;
if ((millis() - lastTime) > timerDelay) {
//Check WiFi connection status
if(WiFi.status()== WL_CONNECTED){
HTTPClient http;
String serverPath = serverName + "?agua=" + distanceCm;
// Your Domain name with URL path or IP address with path
http.begin(serverPath.c_str());
// Send HTTP GET request
int httpResponseCode = http.GET();
if (httpResponseCode>0) {
Serial.print("HTTP Response code: ");
Serial.println(httpResponseCode);
String payload = http.getString();
Serial.println(payload);
}
else {
Serial.print("Error code: ");
Serial.println(httpResponseCode);
}
// Free resources
http.end();
}
else {
Serial.println("WiFi Disconnected");
}
lastTime = millis();
}
}
Ahora hacemos un sleep para que no gaste energía durante esa hora:
#include <WiFi.h>
#include <ESPAsyncWebServer.h>
#include <AsyncElegantOTA.h>
#include <HTTPClient.h>
const char* ssid = "pitufina";
const char* password = "reyvisigodo";
IPAddress ip(192,168,1,79);
IPAddress gateway(192,168,1,1);
IPAddress subnet(255,255,255,0);
IPAddress dns(8,8,8,8);
AsyncWebServer server(80);
//Your Domain name with URL path or IP address with path
String serverName = "http://bateriaseko.lobo99.com/agua.php";
#define uS_TO_S_FACTOR 1000000ULL //Conversion factor for micro seconds to seconds
#define TIME_TO_SLEEP 3600 //Time ESP32 will go to sleep (in seconds)
RTC_DATA_ATTR int bootCount = 0;
///////////////////////////////////////////////
//// /////
//// Variables lector ultrasonido /////
//// /////
///////////////////////////////////////////////
const int trigPin = 5;
const int echoPin = 18;
//define sound speed in cm/uS
#define SOUND_SPEED 0.034
#define CM_TO_INCH 0.393701
long duration;
float distanceCm;
float distanceInch;
void setup() {
Serial.begin(115200);
delay(10);
Serial.println('\n');
// Definimos pin ultrasonido
pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
pinMode(echoPin, INPUT); // Sets the echoPin as an Input
WiFi.begin(ssid, password);
WiFi.config(ip, gateway, subnet, dns);
Serial.print("Conectando a ");
Serial.print(ssid);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print('.');
}
Serial.println('\n');
Serial.println("Conectado correctamente");
Serial.print("IP:\t");
Serial.println(WiFi.localIP());
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) {
request->send(200, "text/plain", "V1.0 Primer OTA");
});
AsyncElegantOTA.begin(&server); // Start AsyncElegantOTA
server.begin();
Serial.println("HTTP server started");
delay(1000);
enviaLectura();
esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * uS_TO_S_FACTOR);
Serial.println("Setup ESP32 to sleep for every " + String(TIME_TO_SLEEP) + " Seconds");
//Go to sleep now
esp_deep_sleep_start();
}
void loop() {}
String enviaLectura() {
// Clears the trigPin
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
// Sets the trigPin on HIGH state for 10 micro seconds
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
// Reads the echoPin, returns the sound wave travel time in microseconds
duration = pulseIn(echoPin, HIGH);
// Calculate the distance
distanceCm = duration * SOUND_SPEED/2;
//Check WiFi connection status
if(WiFi.status()== WL_CONNECTED){
HTTPClient http;
String serverPath = serverName + "?agua=" + distanceCm;
// Your Domain name with URL path or IP address with path
http.begin(serverPath.c_str());
// Send HTTP GET request
int httpResponseCode = http.GET();
if (httpResponseCode>0) {
Serial.print("HTTP Response code: ");
Serial.println(httpResponseCode);
String payload = http.getString();
Serial.println(payload);
}
else {
Serial.print("Error code: ");
Serial.println(httpResponseCode);
}
// Free resources
http.end();
}
else {
Serial.println("WiFi Disconnected");
}
delay(1000);
return "OK";
}
tecnologia/iot/esp32_post.1651851381.txt.gz · Last modified: by admin