我有一个想法,从服务器下载
.bin
文件并保存在 SPIFFS 中,然后将文件上传到我的 ESP32 上。 .bin
文件存储在 SPIFFS 中,其次,如何使用 .bin
下载的文件对 ESP32 进行编程,无需用户干预,并且全部通过代码自动进行。 我专门为我所说的第二部分寻找解决方案,但没有找到解决方案。
请遵循此代码片段,我希望这将帮助您解决问题:
#include <Arduino.h>
#include <WiFi.h>
#include <HTTPClient.h>
#include <SPIFFS.h>
#include <Update.h>
const char* ssid = "YourWiFiSSID";
const char* password = "YourWiFiPassword";
const char* binUrl = "http://example.com/path/to/your/file.bin"; // URL of the .bin file
void setup() {
Serial.begin(115200);
// Connect to Wi-Fi
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi...");
}
Serial.println("Connected to WiFi");
// Initialize SPIFFS
if (!SPIFFS.begin(true)) {
Serial.println("SPIFFS Mount Failed");
return;
}
// Check for and perform firmware update
checkAndPerformFirmwareUpdate();
// Your setup code here
}
void loop() {
// Your main loop code here
}
void checkAndPerformFirmwareUpdate() {
HTTPClient http;
http.begin(binUrl);
int httpCode = http.GET();
if (httpCode == HTTP_CODE_OK) {
Serial.println("Downloading .bin file...");
File firmwareFile = SPIFFS.open("/firmware.bin", FILE_WRITE);
if (firmwareFile) {
size_t contentLength = http.getSize();
http.writeToStream(&firmwareFile);
firmwareFile.close();
Serial.println("Download complete.");
// Perform firmware update
if (Update.begin(contentLength)) {
if (Update.writeStream(http.getStream())) {
if (Update.end(true)) {
Serial.println("Firmware update successful. Rebooting...");
ESP.restart();
} else {
Serial.println("Firmware update failed!");
}
} else {
Serial.println("Write to firmware update stream failed!");
}
} else {
Serial.println("Begin firmware update failed!");
}
} else {
Serial.println("Unable to create firmware file!");
}
} else {
Serial.println("HTTP GET failed!");
}
http.end();
}