Monitoring system for electric vehicles (log various sensors, such as consumed power, solar production, speed, slope, apparent wind, etc.)
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//
// A simple server implementation with regex routes:
// * serve static messages
// * read GET and POST parameters
// * handle missing pages / 404s
//
// Add buildflag ASYNCWEBSERVER_REGEX to enable the regex support
// For platformio: platformio.ini:
// build_flags =
// -DASYNCWEBSERVER_REGEX
// For arduino IDE: create/update platform.local.txt
// Windows: C:\Users\(username)\AppData\Local\Arduino15\packages\espxxxx\hardware\espxxxx\{version}\platform.local.txt
// Linux: ~/.arduino15/packages/espxxxx/hardware/espxxxx/{version}/platform.local.txt
//
// compiler.cpp.extra_flags=-DASYNCWEBSERVER_REGEX=1
#include <Arduino.h>
#ifdef ESP32
#include <WiFi.h>
#include <AsyncTCP.h>
#elif defined(ESP8266)
#include <ESP8266WiFi.h>
#include <ESPAsyncTCP.h>
#endif
#include <ESPAsyncWebServer.h>
AsyncWebServer server(80);
const char* ssid = "YOUR_SSID";
const char* password = "YOUR_PASSWORD";
const char* PARAM_MESSAGE = "message";
void notFound(AsyncWebServerRequest *request) {
request->send(404, "text/plain", "Not found");
}
void setup() {
Serial.begin(115200);
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
if (WiFi.waitForConnectResult() != WL_CONNECTED) {
Serial.printf("WiFi Failed!\n");
return;
}
Serial.print("IP Address: ");
Serial.println(WiFi.localIP());
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
request->send(200, "text/plain", "Hello, world");
});
// Send a GET request to <IP>/sensor/<number>
server.on("^\\/sensor\\/([0-9]+)$", HTTP_GET, [] (AsyncWebServerRequest *request) {
String sensorNumber = request->pathArg(0);
request->send(200, "text/plain", "Hello, sensor: " + sensorNumber);
});
// Send a GET request to <IP>/sensor/<number>/action/<action>
server.on("^\\/sensor\\/([0-9]+)\\/action\\/([a-zA-Z0-9]+)$", HTTP_GET, [] (AsyncWebServerRequest *request) {
String sensorNumber = request->pathArg(0);
String action = request->pathArg(1);
request->send(200, "text/plain", "Hello, sensor: " + sensorNumber + ", with action: " + action);
});
server.onNotFound(notFound);
server.begin();
}
void loop() {
}