Created
January 12, 2019 21:02
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esp8266 ota web server page
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/* | |
To upload through terminal you can use: curl -F "image=@firmware.bin" esp8266-webupdate.local/update | |
*/ | |
#include <ESP8266WiFi.h> | |
#include <WiFiClient.h> | |
#include <ESP8266WebServer.h> | |
#include <ESP8266mDNS.h> | |
#ifndef STASSID | |
#define STASSID "xyz" | |
#define STAPSK "123456789" | |
#endif | |
const char* host = "esp8266-webupdate"; | |
const char* ssid = STASSID; | |
const char* password = STAPSK; | |
ESP8266WebServer server(80); | |
const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>"; | |
void setup(void) { | |
Serial.begin(115200); | |
Serial.println(); | |
Serial.println("Booting Sketch..."); | |
WiFi.mode(WIFI_AP_STA); | |
WiFi.begin(ssid, password); | |
if (WiFi.waitForConnectResult() == WL_CONNECTED) { | |
Serial.println("WiFi connected"); | |
Serial.println("IP address: "); | |
Serial.println(WiFi.localIP()); | |
MDNS.begin(host); | |
server.on("/", HTTP_GET, []() { | |
server.sendHeader("Connection", "close"); | |
server.send(200, "text/html", serverIndex); | |
}); | |
server.on("/update", HTTP_POST, []() { | |
server.sendHeader("Connection", "close"); | |
server.send(200, "text/plain", (Update.hasError()) ? "FAIL" : "OK"); | |
ESP.restart(); | |
}, []() { | |
HTTPUpload& upload = server.upload(); | |
if (upload.status == UPLOAD_FILE_START) { | |
Serial.setDebugOutput(true); | |
WiFiUDP::stopAll(); | |
Serial.printf("Update: %s\n", upload.filename.c_str()); | |
uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000; | |
if (!Update.begin(maxSketchSpace)) { //start with max available size | |
Update.printError(Serial); | |
} | |
} else if (upload.status == UPLOAD_FILE_WRITE) { | |
if (Update.write(upload.buf, upload.currentSize) != upload.currentSize) { | |
Update.printError(Serial); | |
} | |
} else if (upload.status == UPLOAD_FILE_END) { | |
if (Update.end(true)) { //true to set the size to the current progress | |
Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize); | |
} else { | |
Update.printError(Serial); | |
} | |
Serial.setDebugOutput(false); | |
} | |
yield(); | |
}); | |
server.begin(); | |
MDNS.addService("http", "tcp", 80); | |
Serial.printf("Ready! Open http://%s.local in your browser\n", host); | |
} else { | |
Serial.println("WiFi Failed"); | |
} | |
} | |
void loop(void) { | |
server.handleClient(); | |
MDNS.update(); | |
} |
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