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/*
This is an example sketch to show the use of the FTP Client.
Please replace
YOUR_SSID and YOUR_PASS
with your WiFi's values and compile.
If you want to see debugging output of the FTP Client, please
select select an Serial Port in the Arduino IDE menu Tools->Debug Port
Send L via Serial Monitor, to display the contents of the FS
Send F via Serial Monitor, to fromat the FS
Send G via Serial Monitor, to GET a file from a FTP Server
This example is provided as Public Domain
Daniel Plasa <dplasa@gmail.com>
*/
#include <ESP8266WiFi.h>
#include <LittleFS.h>
#include <FTPClient.h>
const char *ssid PROGMEM = "YOUR_SSID";
const char *password PROGMEM = "YOUR_PASS";
// tell the FTP Client to use LittleFS
FTPClient ftpClient(LittleFS);
// provide FTP servers credentials and servername
FTPClient::ServerInfo ftpServerInfo("user", "password", "hostname_or_ip");
void setup(void)
{
Serial.begin(74880);
WiFi.begin(ssid, password);
bool fsok = LittleFS.begin();
Serial.printf_P(PSTR("FS init: %S\n"), fsok ? PSTR("ok") : PSTR("fail!"));
// Wait for connection
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.printf_P(PSTR("."));
}
Serial.printf_P(PSTR("\nConnected to %S, IP address is %s\n"), ssid, WiFi.localIP().toString().c_str());
ftpClient.begin(ftpServerInfo);
}
enum consoleaction
{
show,
get,
put,
wait,
format,
list
};
consoleaction action = show;
String fileName;
bool transferStarted = false;
uint32_t startTime;
void loop()
{
// this is all you need
// make sure to call handleFTP() frequently
ftpClient.handleFTP();
//
// Code below just to debug in Serial Monitor
//
if (action == show)
{
Serial.printf_P(PSTR("Enter 'F' to format, 'L' to list the contents of the FS, 'G'/'P' + File to GET/PUT from/to FTP Server\n"));
action = wait;
}
else if (action == wait)
{
if (transferStarted )
{
const FTPClient::Status &r = ftpClient.check();
if (r.result == FTPClient::OK)
{
Serial.printf_P(PSTR("Transfer complete, took %lu ms\n"), millis() - startTime);
transferStarted = false;
}
else if (r.result == FTPClient::ERROR)
{
Serial.printf_P(PSTR("Transfer failed after %lu ms, code: %u, descr=%s\n"), millis() - startTime, ftpClient.check().code, ftpClient.check().desc.c_str());
transferStarted = false;
}
}
if (Serial.available())
{
char c = Serial.read();
if (c == 'F')
action = format;
else if (c == 'L')
action = list;
else if (c == 'G')
{
action = get;
fileName = Serial.readStringUntil('\n');
fileName.trim();
}
else if (c == 'P')
{
action = put;
fileName = Serial.readStringUntil('\n');
fileName.trim();
}
else if (!(c == '\n' || c == '\r'))
action = show;
}
}
else if (action == format)
{
startTime = millis();
LittleFS.format();
Serial.printf_P(PSTR("FS format done, took %lu ms!\n"), millis() - startTime);
action = show;
}
else if ((action == get) || (action == put))
{
startTime = millis();
ftpClient.transfer(fileName, fileName, action == get ?
FTPClient::FTP_GET_NONBLOCKING : FTPClient::FTP_PUT_NONBLOCKING);
Serial.printf_P(PSTR("transfer started, took %lu ms!\n"), millis() - startTime);
transferStarted = true;
action = show;
}
else if (action == list)
{
Serial.printf_P(PSTR("Listing contents...\n"));
uint16_t fileCount = listDir("", "/");
Serial.printf_P(PSTR("%d files/dirs total\n"), fileCount);
action = show;
}
}
uint16_t listDir(String indent, String path)
{
uint16_t dirCount = 0;
Dir dir = LittleFS.openDir(path);
while (dir.next())
{
++dirCount;
if (dir.isDirectory())
{
Serial.printf_P(PSTR("%s%s [Dir]\n"), indent.c_str(), dir.fileName().c_str());
dirCount += listDir(indent + " ", path + dir.fileName() + "/");
}
else
Serial.printf_P(PSTR("%s%-16s (%ld Bytes)\n"), indent.c_str(), dir.fileName().c_str(), (uint32_t)dir.fileSize());
}
return dirCount;
}
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