a toggle button that updates a webserver status – Page 3 – Arduino

murad · 2021-01-07T11:56:34Z

hello evveryone i have the below code i have a code that recives from php server the status of the relay or (led) and if there is any change it applys it in arduino ,,,, i managed to make it work with a physical button in my case it is (IR Infrared Obstacle Avoidance Sensor) now my issue is,, when i push the physical button which its attached to the rduino via pin, it works BUT it doesnt send to the php server to update the physical button status. so eventually in few seconds when the php code recheck with the arduino again to send the commands.. it updates same status that on php server without the order of the physical button so the physical button command gets over wrettin if its correct to say that, here is the code, thank you folks. #include <ESP8266WiFi.h>#include <ESP8266HTTPClient.h>#include <WiFiClient.h>#include <Arduino_JSON.h>#include <ESP8266WiFiMulti.h>ESP8266WiFiMulti WiFiMulti;////////////// Obstacle code//////////////#define r1 4int relay1 = LOW;int obstaclePin = 5; // This is our input pinint hasObstacle = HIGH;////////////// Obstacle code//////////////const char* ssid = "router SSID";const char* password = "ROUTER password";//Your IP address or domain name with URL pathconst char* serverName = "http://example.com/esp-outputs-action.php?action=outputs_state&board=1";// Update interval time set to 5 secondsconst long interval = 5000;unsigned long previousMillis = 0;String outputsState;void setup() {////////////// Obstacle code//////////////pinMode(r1, OUTPUT);pinMode(obstaclePin, INPUT);////////////// Obstacle code//////////////Serial.begin(115200);WiFi.mode(WIFI_STA);WiFiMulti.addAP(ssid, password);while((WiFiMulti.run() == WL_CONNECTED)) { delay(500);Serial.print(".");}Serial.println("");Serial.println("Connected to WiFi");}////////////// Obstacle code//////////////void buttons() {hasObstacle = digitalRead(obstaclePin);if (hasObstacle == LOW){relay1 = ~ relay1;digitalWrite(r1,relay1);delay(1000);}delay(200);}////////////// Obstacle code//////////////void http() {unsigned long currentMillis = millis();if(currentMillis - previousMillis >= interval) {// Check WiFi connection statusif ((WiFiMulti.run() == WL_CONNECTED)) {outputsState = httpGETRequest(serverName);Serial.println(outputsState);JSONVar myObject = JSON.parse(outputsState);// JSON.typeof(jsonVar) can be used to get the type of the varif (JSON.typeof(myObject) == "undefined") {Serial.println("Parsing input failed!");return;}Serial.print("JSON object = ");Serial.println(myObject);// myObject.keys() can be used to get an array of all the keys in the objectJSONVar keys = myObject.keys();for (int i = 0; i < keys.length(); i++) {JSONVar value = myObject[keys[i]];Serial.print("GPIO: ");Serial.print(keys[i]);Serial.print(" - SET to: ");Serial.println(value);pinMode(atoi(keys[i]), OUTPUT);digitalWrite(atoi(keys[i]), atoi(value));}// save the last HTTP GET RequestpreviousMillis = currentMillis;}else {Serial.println("WiFi Disconnected");}}}String httpGETRequest(const char* serverName) {WiFiClient client;HTTPClient http;// Your IP address with path or Domain name with URL path http.begin(client, serverName);// Send HTTP POST requestint httpResponseCode = http.GET();String payload = "{}";if (httpResponseCode>0) {Serial.print("HTTP Response code: ");Serial.println(httpResponseCode);payload = http.getString();}else {Serial.print("Error code: ");Serial.println(httpResponseCode);}// Free resourceshttp.end();return payload;}void loop(){void buttons();void http();}

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murad

(@murad)

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Posts: 24

Topic starter January 10, 2021 11:39 AM

video processing have some issues on windows ? i could rewatch it from mobile but not from chrome or edge

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Hans

(@hans)

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Joined: 12 years ago

Posts: 2859

January 11, 2021 10:55 AM

I have no idea why your video is not working. Looks like a MOV file?
MP4 would have been better, since video processing is done by the browser, and MP4 is wider supported - my server doesn't do anything with it.
So I converted the video for you, added some cropping and replaced your old one. 😊

I'm not sure what goes wrong with the String code.
Could you try this:

String serverPath = serverName + String("&state=1");

I think the problem could be that "&state=1" is seen as an array of characters, where as we want to add this to a String (with capital "S").
So this should (hopefully) fix that 😉

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murad

(@murad)

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Posts: 24

Topic starter January 12, 2021 3:22 AM

Posted by: @hans

I think the problem could be that "&state=1" is seen as an array of characters, where as we want to add this to a String (with capital "S").
So this should (hopefully) fix that

it didnt woork without this ,,,

but its fine ,,, now its working no worries

thank you for sharing ur expertise i used get and push earlier but it didnt work now it does :D

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Hans

(@hans)

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Joined: 12 years ago

Posts: 2859

January 12, 2021 6:24 AM

👍 Awesome! 😁

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