OTA via the OpenCO2 Sensor itself

HttpsOTAUpdate.ino

@@ -0,0 +1,67 @@
+#include "HttpsOTAUpdate.h"
+
+unsigned long otaProgress;
+
+static const char *rootCACertificate = \
+"-----BEGIN CERTIFICATE-----\n"
+"MIIEvjCCA6agAwIBAgIQBtjZBNVYQ0b2ii+nVCJ+xDANBgkqhkiG9w0BAQsFADBh\n"
+"MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3\n"
+"d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBD\n"
+"QTAeFw0yMTA0MTQwMDAwMDBaFw0zMTA0MTMyMzU5NTlaME8xCzAJBgNVBAYTAlVT\n"
+"MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxKTAnBgNVBAMTIERpZ2lDZXJ0IFRMUyBS\n"
+"U0EgU0hBMjU2IDIwMjAgQ0ExMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC\n"
+"AQEAwUuzZUdwvN1PWNvsnO3DZuUfMRNUrUpmRh8sCuxkB+Uu3Ny5CiDt3+PE0J6a\n"
+"qXodgojlEVbbHp9YwlHnLDQNLtKS4VbL8Xlfs7uHyiUDe5pSQWYQYE9XE0nw6Ddn\n"
+"g9/n00tnTCJRpt8OmRDtV1F0JuJ9x8piLhMbfyOIJVNvwTRYAIuE//i+p1hJInuW\n"
+"raKImxW8oHzf6VGo1bDtN+I2tIJLYrVJmuzHZ9bjPvXj1hJeRPG/cUJ9WIQDgLGB\n"
+"Afr5yjK7tI4nhyfFK3TUqNaX3sNk+crOU6JWvHgXjkkDKa77SU+kFbnO8lwZV21r\n"
+"eacroicgE7XQPUDTITAHk+qZ9QIDAQABo4IBgjCCAX4wEgYDVR0TAQH/BAgwBgEB\n"
+"/wIBADAdBgNVHQ4EFgQUt2ui6qiqhIx56rTaD5iyxZV2ufQwHwYDVR0jBBgwFoAU\n"
+"A95QNVbRTLtm8KPiGxvDl7I90VUwDgYDVR0PAQH/BAQDAgGGMB0GA1UdJQQWMBQG\n"
+"CCsGAQUFBwMBBggrBgEFBQcDAjB2BggrBgEFBQcBAQRqMGgwJAYIKwYBBQUHMAGG\n"
+"GGh0dHA6Ly9vY3NwLmRpZ2ljZXJ0LmNvbTBABggrBgEFBQcwAoY0aHR0cDovL2Nh\n"
+"Y2VydHMuZGlnaWNlcnQuY29tL0RpZ2lDZXJ0R2xvYmFsUm9vdENBLmNydDBCBgNV\n"
+"HR8EOzA5MDegNaAzhjFodHRwOi8vY3JsMy5kaWdpY2VydC5jb20vRGlnaUNlcnRH\n"
+"bG9iYWxSb290Q0EuY3JsMD0GA1UdIAQ2MDQwCwYJYIZIAYb9bAIBMAcGBWeBDAEB\n"
+"MAgGBmeBDAECATAIBgZngQwBAgIwCAYGZ4EMAQIDMA0GCSqGSIb3DQEBCwUAA4IB\n"
+"AQCAMs5eC91uWg0Kr+HWhMvAjvqFcO3aXbMM9yt1QP6FCvrzMXi3cEsaiVi6gL3z\n"
+"ax3pfs8LulicWdSQ0/1s/dCYbbdxglvPbQtaCdB73sRD2Cqk3p5BJl+7j5nL3a7h\n"
+"qG+fh/50tx8bIKuxT8b1Z11dmzzp/2n3YWzW2fP9NsarA4h20ksudYbj/NhVfSbC\n"
+"EXffPgK2fPOre3qGNm+499iTcc+G33Mw+nur7SpZyEKEOxEXGlLzyQ4UfaJbcme6\n"
+"ce1XR2bFuAJKZTRei9AqPCCcUZlM51Ke92sRKw2Sfh3oius2FkOH6ipjv3U/697E\n"
+"A7sKPPcw7+uvTPyLNhBzPvOk\n"
+"-----END CERTIFICATE-----\n";
+
+void HttpEvent(HttpEvent_t *event) {
+  switch(event->event_id) {
+    case HTTP_EVENT_ERROR:
+      Serial.printf("HTTP_EVENT_ERROR\n");
+      break;
+    case HTTP_EVENT_ON_CONNECTED:
+      Serial.printf("HTTP_EVENT_ON_CONNECTED\n");
+      otaProgress = 0;
+      break;
+    case HTTP_EVENT_HEADER_SENT:
+      Serial.printf("HTTP_EVENT_HEADER_SENT\n");
+      break;
+    case HTTP_EVENT_ON_HEADER:
+      Serial.printf("HTTP_EVENT_ON_HEADER, key=%s, value=%s\n", event->header_key, event->header_value);
+      break;
+    case HTTP_EVENT_ON_DATA:
+      Serial.printf("#");
+      otaProgress += event->data_len;
+      break;
+    case HTTP_EVENT_ON_FINISH:
+      Serial.printf("HTTP_EVENT_ON_FINISH\n");
+      break;
+    case HTTP_EVENT_DISCONNECTED:
+      Serial.printf("HTTP_EVENT_DISCONNECTED\n");
+      break;
+  }
+}
+
+void ota_http_update() {
+  Serial.printf("Starting OTA\n");
+  HttpsOTA.onHttpEvent(HttpEvent);
+  HttpsOTA.begin("https://https://raw.githubusercontent.com/davidkreidler/OpenCO2_Sensor/ota/firmware/OpenCO2_Sensor.ino.bin", rootCACertificate);
+}

OpenCO2_Sensor.ino

@@ -491,7 +491,7 @@ void toggleWiFi() {
   preferences.end();
   displayWiFi(useWiFi);
   if (!BatteryMode) handleWiFiChange();
-  delay(500);
+  //delay(500);
 
   bool ip_shown = false;
   while (digitalRead(BUTTON) != 0) { // wait for button press
@@ -612,6 +612,10 @@ void handleButtonPress() {
             return;
           case INFO:
             displayinfo();
+            if (WiFi.status() == WL_CONNECTED) {
+              ota_http_update();
+              delay(5000);
+            }
             while (digitalRead(BUTTON) != 0) delay(100); // wait for button press
             refreshes = 1;
             return;   
@@ -749,7 +753,8 @@ void setup() {
   if (!initDone) initOnce();
 
 #if ARDUINO_USB_CDC_ON_BOOT && !ARDUINO_USB_MODE
-  if (TEST_MODE) Serial.begin(115200);
+  //if (TEST_MODE) 
+  Serial.begin(115200);
 #endif
 
   /* power */