aconnect.c

#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>

const char* POST_TO = /* local IP of router here */;
// Sensitive data omitted
const char* POST_REQUEST = "ACT=LOGI%40LTYP=1%40MAC=%40IP=%40ERV=%40URL=%40PUB=1%40MEDM=0%40USR=%40PASS=";
void setup() {
  Serial.begin(115200);
}

void loop() {
  WiFi.begin(/* network name */);
  
  Serial.println();
  Serial.print("Connecting");
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.print(".");
  }
  Serial.println("Connected!");

  Serial.println("Posting");
  HTTPClient http;
  http.begin(POST_TO);
  http.POST(POST_REQUEST);

  http.writeToStream(&Serial);

  http.end();
  
  WiFi.disconnect();
  
  WiFi.forceSleepBegin();
  

  delay(10*60*1000);

  WiFi.forceSleepWake(); 
}