95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
/**************************************************************
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* This is a DEMO. You can use it only for development and testing.
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*
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* If you would like to add these features to your product,
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* please contact Blynk for Business:
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*
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* http://www.blynk.io/
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*
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**************************************************************
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*
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* How to trigger an OTA update?
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* 1. In Arduino IDE menu: Sketch -> Export compiled Binary
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* 2. Open console, navigate to the sketch directory
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* 3.a Trigger update using HTTPS API on local server for specific hardware:
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* curl -v -F file=@Template_ESP8266.ino.nodemcu.bin --insecure -u admin@blynk.cc:admin https://localhost:9443/admin/ota/start?token=123
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* 3.b Trigger update using HTTPS API on local server for all hardware:
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* curl -v -F file=@Template_ESP8266.ino.nodemcu.bin --insecure -u admin@blynk.cc:admin https://localhost:9443/admin/ota/start
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* 3.c Trigger update using HTTPS API on local server for single user:
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* curl -v -F file=@Template_ESP8266.ino.nodemcu.bin --insecure -u admin@blynk.cc:admin https://localhost:9443/admin/ota/start?user=pupkin@gmail.com
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* 3.d Trigger update using HTTPS API on local server for single user and specific project:
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* curl -v -F file=@Template_ESP8266.ino.nodemcu.bin --insecure -u admin@blynk.cc:admin https://localhost:9443/admin/ota/start?user=pupkin@gmail.com&project=123
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* More about ESP8266 OTA updates:
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* https://github.com/esp8266/Arduino/blob/master/doc/ota_updates/readme.md
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*/
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#include <WiFi.h>
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#include <Update.h>
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#include <HTTPClient.h>
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String overTheAirURL;
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BLYNK_WRITE(InternalPinOTA) {
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overTheAirURL = param.asString();
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// Disconnect, not to interfere with OTA process
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Blynk.disconnect();
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// Start OTA
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BlynkState::set(MODE_OTA_UPGRADE);
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delay(500);
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}
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void enterOTA() {
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BlynkState::set(MODE_OTA_UPGRADE);
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DEBUG_PRINT(String("Firmware update URL: ") + overTheAirURL);
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HTTPClient http;
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http.begin(overTheAirURL);
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int httpCode = http.GET();
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if (httpCode != HTTP_CODE_OK) {
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DEBUG_PRINT("HTTP response should be 200");
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BlynkState::set(MODE_ERROR);
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return;
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}
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int contentLength = http.getSize();
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if (contentLength <= 0) {
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DEBUG_PRINT("Content-Length not defined");
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BlynkState::set(MODE_ERROR);
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return;
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}
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bool canBegin = Update.begin(contentLength);
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if (!canBegin) {
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DEBUG_PRINT("Not enough space to begin OTA");
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BlynkState::set(MODE_ERROR);
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return;
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}
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Client& client = http.getStream();
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int written = Update.writeStream(client);
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if (written != contentLength) {
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DEBUG_PRINT(String("OTA written ") + written + " / " + contentLength + " bytes");
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BlynkState::set(MODE_ERROR);
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return;
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}
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if (!Update.end()) {
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DEBUG_PRINT("Error #" + String(Update.getError()));
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BlynkState::set(MODE_ERROR);
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return;
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}
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if (!Update.isFinished()) {
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DEBUG_PRINT("Update failed.");
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BlynkState::set(MODE_ERROR);
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return;
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}
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DEBUG_PRINT("Update successfully completed. Rebooting.");
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ESP.restart();
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}
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