Portenta or Nicla Vision websockets?

jerteach · December 12, 2022, 6:22pm

Anyone have any examples of using the Portenta with a websocket?

I have filed an issue on the arduino MBED core, but has anyone got it working

github.com/arduino/ArduinoCore-mbed

Portenta or any Arduino MBED simple send receive WiFi websocket example

opened 06:18PM - 12 Dec 22 UTC

closed 06:28PM - 19 Dec 22 UTC

hpssjellis

I am looking for a simple WiFi Arduino MBED websocket client example preferably …for the Portenta or NiclVision? I can see lots of Portenta ethernet examples, but none of them seem specific to websockets It looks like there are websocket libraries. Khoi has some examples online but I can't seem to get them working and would prefer to use Arduino code to simplify the installation. [here](https://github.com/khoih-prog/WebSockets_Generic) and [here](https://github.com/khoih-prog/WebSockets2_Generic) and [here](https://github.com/khoih-prog/EthernetWebServer_SSL) P.S. I have a super simple websocket server which just uses these two websites. 1. gitpod (needs a github login) auto loads everything. https://gitpod.io/#github.com/hpssjellis/gitpod-portenta-websocket 2. The demo website: https://hpssjellis.github.io/gitpod-portenta-websocket/public/static-html03.html The github for those 2 links is at https://github.com/hpssjellis/gitpod-portenta-websocket ![image](https://user-images.githubusercontent.com/5605614/207122933-fb1c264a-cb21-4d69-b8fa-0dba0c672243.png) The following code works fine on the Nano 33 IOT. ``` #include <SPI.h> #include <WiFiNINA.h> //#include "arduino_secrets.h" #define SECRET_SSID "" // your network #define SECRET_PASS "" // your password ///////please enter your sensitive data in the Secret tab/arduino_secrets.h char ssid[] = SECRET_SSID; // your network SSID (name) char pass[] = SECRET_PASS; // your network password (use for WPA, or use as key for WEP) int keyIndex = 0; // your network key Index number (needed only for WEP) int status = WL_IDLE_STATUS; // if you don't want to use DNS (and reduce your sketch size) // use the numeric IP instead of the name for the server: //IPAddress server(74,125,232,128); // numeric IP for Google (no DNS) ///////////////////////// Node Websocket server url without http:// or ending / //////// // so https://myURL/ // becomes // myURL // new version websocket server //char server[] = "8080-hpssjellis-gitpodporten-iie72xjq62h.ws-us78.gitpod.io"; //old version char server[] = "8080-hpssjellis-arduinosimpl-k1oalzba9ks.ws-us78.gitpod.io"; ///////////////////////// above is important //////////////////////////////////////////////////// String myRandWebSocket = String(rand()*10000+10000); //attempt at random security // Initialize the Ethernet client library // with the IP address and port of the server // that you want to connect to (port 80 is default for HTTP): //WiFiClient client; WiFiSSLClient client; void setup() { pinMode(LED_BUILTIN,OUTPUT); //Initialize serial and wait for port to open: Serial.begin(9600); while (!Serial) { ; // wait for serial port to connect. Needed for native USB port only } // check for the WiFi module: if (WiFi.status() == WL_NO_MODULE) { Serial.println("Communication with WiFi module failed!"); // don't continue while (true); } String fv = WiFi.firmwareVersion(); if (fv < WIFI_FIRMWARE_LATEST_VERSION) { Serial.println("Please upgrade the firmware"); } // attempt to connect to Wifi network: while (status != WL_CONNECTED) { Serial.print("Attempting to connect to SSID: "); Serial.println(ssid); // Connect to WPA/WPA2 network. Change this line if using open or WEP network: status = WiFi.begin(ssid, pass); // wait 10 seconds for connection: delay(10000); } Serial.println("Connected to wifi"); printWifiStatus(); Serial.println("\nStarting connection to server..."); // if you get a connection, report back via serial: //if (client.connect(server, 80)) { if (client.connect(server, 443)) { Serial.println("connected to server"); // Make a HTTP request: client.println("GET / HTTP/1.1"); client.println("Host: "+String(server)); client.println("Upgrade: websocket"); client.println("Connection: Upgrade"); client.println("Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ=="); client.println("Sec-WebSocket-Version: 13"); client.println(); } } void loop() { // if there are incoming bytes available // from the server, read them and print them: while (client.available()) { char c = client.read(); Serial.write(c); if (c == 'A') { // can use any single letter or character digitalWrite(LED_BUILTIN, 1); Serial.println(); } if (c == 'B') { digitalWrite(LED_BUILTIN, 0); Serial.println(); } } // if the server's disconnected, stop the client: if (!client.connected()) { Serial.println(); Serial.println("disconnecting from server."); client.stop(); // do nothing forevermore: while (true); } } void printWifiStatus() { // print the SSID of the network you're attached to: Serial.print("SSID: "); Serial.println(WiFi.SSID()); // print your board's IP address: IPAddress ip = WiFi.localIP(); Serial.print("IP Address: "); Serial.println(ip); // print the received signal strength: long rssi = WiFi.RSSI(); Serial.print("signal strength (RSSI):"); Serial.print(rssi); Serial.println(" dBm"); } ```

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Portenta or Nicla Vision websockets?

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