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Jérôme Delacotte
2025-03-06 11:15:32 +01:00
commit 7b30d6e298
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399
libraries/GxEPD2/examples/GxEPD2_Spiffs_Loader/GxEPD2_Spiffs_Loader.ino Normal file
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// GxEPD2_Spiffs_Loader : Display Library example for SPI e-paper panels from Dalian Good Display and boards from Waveshare.
// Requires HW SPI and Adafruit_GFX. Caution: the e-paper panels require 3.3V supply AND data lines!
//
// Display Library based on Demo Example from Good Display: https://www.good-display.com/companyfile/32/
//
// Author: Jean-Marc Zingg
//
// Version: see library.properties
//
// Library: https://github.com/ZinggJM/GxEPD2
// Supporting Arduino Forum Topics (closed, read only):
// Good Display ePaper for Arduino: https://forum.arduino.cc/t/good-display-epaper-for-arduino/419657
// Waveshare e-paper displays with SPI: https://forum.arduino.cc/t/waveshare-e-paper-displays-with-spi/467865
//
// Add new topics in https://forum.arduino.cc/c/using-arduino/displays/23 for new questions and issues
#if defined(ESP32)
#include "SPIFFS.h"
// set formatOnFail = true for initial format of ESP32 SPIFFS (e.g. if error occured)
const bool formatOnFail = false;
#endif
#include <FS.h>
#if defined (ESP8266)
#include <LittleFS.h>
#include <ESP8266WiFi.h>
#endif
#include <WiFiClient.h>
#include <WiFiClientSecure.h>
const char* ssid = "........";
const char* password = "........";
const int httpPort = 80;
const int httpsPort = 443;
const char* fp_api_github_com = "df b2 29 c6 a6 38 1a 59 9d c9 ad 92 2d 26 f5 3c 83 8f a5 87"; // as of 25.11.2020
const char* fp_github_com = "5f 3f 7a c2 56 9f 50 a4 66 76 47 c6 a1 8c a0 07 aa ed bb 8e"; // as of 25.11.2020
const char* fp_rawcontent = "70 94 de dd e6 c4 69 48 3a 92 70 a1 48 56 78 2d 18 64 e0 b7"; // as of 25.11.2020
// note: the certificates have been moved to a separate header file, as R"CERT( destroys IDE Auto Format capability
#include "GxEPD2_github_raw_certs.h"
const char* certificate_rawcontent = cert_DigiCert_TLS_RSA_SHA256_2020_CA1; // ok, should work until 2031-04-13 23:59:59
const char* host_rawcontent = "raw.githubusercontent.com";
const char* path_rawcontent = "/ZinggJM/GxEPD2/master/extras/bitmaps/";
const char* path_prenticedavid = "/prenticedavid/MCUFRIEND_kbv/master/extras/bitmaps/";
const char* path_waveshare_c = "/waveshare/e-Paper/master/RaspberryPi_JetsonNano/c/pic/";
const char* path_waveshare_py = "/waveshare/e-Paper/master/RaspberryPi_JetsonNano/python/pic/";
void setup()
{
Serial.begin(115200);
Serial.println();
Serial.println("GxEPD2_Spiffs_Loader");
#ifdef RE_INIT_NEEDED
WiFi.persistent(true);
WiFi.mode(WIFI_STA); // switch off AP
WiFi.setAutoConnect(true);
WiFi.setAutoReconnect(true);
WiFi.disconnect();
#endif
if (!WiFi.getAutoConnect() || ( WiFi.getMode() != WIFI_STA) || ((WiFi.SSID() != ssid) && String(ssid) != "........"))
{
Serial.println();
Serial.print("WiFi.getAutoConnect()=");
Serial.println(WiFi.getAutoConnect());
Serial.print("WiFi.SSID()=");
Serial.println(WiFi.SSID());
WiFi.mode(WIFI_STA); // switch off AP
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
}
int ConnectTimeout = 30; // 15 seconds
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print(".");
Serial.print(WiFi.status());
if (--ConnectTimeout <= 0)
{
Serial.println();
Serial.println("WiFi connect timeout");
return;
}
}
Serial.println();
Serial.println("WiFi connected");
// Print the IP address
Serial.println(WiFi.localIP());
setClock();
#if defined(ESP32)
SPIFFS.begin(formatOnFail);
Serial.println("SPIFFS started");
#else
LittleFS.begin();
Serial.println("LittleFS started");
#endif
listFiles();
//deleteFiles();
downloadBitmaps_200x200();
downloadBitmaps_other();
//downloadBitmaps_test();
listFiles();
}
void loop()
{
}
void downloadFile_HTTPS(const char* host, const char* path, const char* filename, const char* fingerprint, const char* target, const char* certificate = certificate_rawcontent);
void downloadBitmaps_200x200()
{
downloadFile_HTTPS(host_rawcontent, path_rawcontent, "logo200x200.bmp", fp_rawcontent, "logo200x200.bmp");
downloadFile_HTTPS(host_rawcontent, path_rawcontent, "first200x200.bmp", fp_rawcontent, "first200x200.bmp");
downloadFile_HTTPS(host_rawcontent, path_rawcontent, "second200x200.bmp", fp_rawcontent, "second200x200.bmp");
downloadFile_HTTPS(host_rawcontent, path_rawcontent, "third200x200.bmp", fp_rawcontent, "third200x200.bmp");
downloadFile_HTTPS(host_rawcontent, path_rawcontent, "fourth200x200.bmp", fp_rawcontent, "fourth200x200.bmp");
downloadFile_HTTPS(host_rawcontent, path_rawcontent, "fifth200x200.bmp", fp_rawcontent, "fifth200x200.bmp");
downloadFile_HTTPS(host_rawcontent, path_rawcontent, "sixth200x200.bmp", fp_rawcontent, "sixth200x200.bmp");
downloadFile_HTTPS(host_rawcontent, path_rawcontent, "seventh200x200.bmp", fp_rawcontent, "seventh200x200.bmp");
downloadFile_HTTPS(host_rawcontent, path_rawcontent, "eighth200x200.bmp", fp_rawcontent, "eighth200x200.bmp");
}
void downloadBitmaps_other()
{
downloadFile_HTTP("www.squix.org", "/blog/wunderground/", "chanceflurries.bmp", "chanceflurries.bmp");
downloadFile_HTTPS(host_rawcontent, path_prenticedavid, "betty_1.bmp", fp_rawcontent, "betty_1.bmp");
downloadFile_HTTPS(host_rawcontent, path_prenticedavid, "betty_4.bmp", fp_rawcontent, "betty_4.bmp");
downloadFile_HTTPS(host_rawcontent, path_prenticedavid, "marilyn_240x240x8.bmp", fp_rawcontent, "marilyn_240x240x8.bmp");
downloadFile_HTTPS(host_rawcontent, path_prenticedavid, "miniwoof.bmp", fp_rawcontent, "miniwoof.bmp");
//downloadFile_HTTPS(host_rawcontent, path_prenticedavid, "test.bmp", fp_rawcontent, "test.bmp");
downloadFile_HTTPS(host_rawcontent, path_prenticedavid, "tiger.bmp", fp_rawcontent, "tiger.bmp");
downloadFile_HTTPS(host_rawcontent, path_prenticedavid, "tiger_178x160x4.bmp", fp_rawcontent, "tiger_178x160x4.bmp");
downloadFile_HTTPS(host_rawcontent, path_prenticedavid, "tiger_240x317x4.bmp", fp_rawcontent, "tiger_240x317x4.bmp");
downloadFile_HTTPS(host_rawcontent, path_prenticedavid, "tiger_320x200x24.bmp", fp_rawcontent, "tiger_320x200x24.bmp");
//downloadFile_HTTPS(host_rawcontent, path_prenticedavid, "tiger16T.bmp", fp_rawcontent, "tiger16T.bmp");
downloadFile_HTTPS(host_rawcontent, path_prenticedavid, "woof.bmp", fp_rawcontent, "woof.bmp");
}
void downloadBitmaps_test()
{
downloadFile_HTTPS(host_rawcontent, path_rawcontent, "output5.bmp", fp_rawcontent, "output5.bmp");
downloadFile_HTTPS(host_rawcontent, path_rawcontent, "output6.bmp", fp_rawcontent, "output6.bmp");
downloadFile_HTTPS(host_rawcontent, path_rawcontent, "tractor_1.bmp", fp_rawcontent, "tractor_1.bmp");
downloadFile_HTTPS(host_rawcontent, path_rawcontent, "tractor_4.bmp", fp_rawcontent, "tractor_4.bmp");
downloadFile_HTTPS(host_rawcontent, path_rawcontent, "tractor_8.bmp", fp_rawcontent, "tractor_8.bmp");
downloadFile_HTTPS(host_rawcontent, path_rawcontent, "tractor_11.bmp", fp_rawcontent, "tractor_11.bmp");
downloadFile_HTTPS(host_rawcontent, path_rawcontent, "tractor_44.bmp", fp_rawcontent, "tractor_44.bmp");
downloadFile_HTTPS(host_rawcontent, path_rawcontent, "tractor_88.bmp", fp_rawcontent, "tractor_88.bmp");
}
void deleteFiles()
{
#if defined(ESP32)
SPIFFS.remove("logo200x200.bmp");
SPIFFS.remove("first200x200.bmp");
SPIFFS.remove("second200x200.bmp");
SPIFFS.remove("third200x200.bmp");
SPIFFS.remove("fourth200x200.bmp");
SPIFFS.remove("fifth200x200.bmp");
SPIFFS.remove("sixth200x200.bmp");
SPIFFS.remove("seventh200x200.bmp");
SPIFFS.remove("eighth200x200.bmp");
SPIFFS.remove("chanceflurries.bmp");
SPIFFS.remove("betty_1.bmp");
SPIFFS.remove("betty_4.bmp");
SPIFFS.remove("marilyn_240x240x8.bmp");
SPIFFS.remove("miniwoof.bmp");
SPIFFS.remove("test.bmp");
SPIFFS.remove("tiger.bmp");
SPIFFS.remove("tiger_178x160x4.bmp");
SPIFFS.remove("tiger_240x317x4.bmp");
SPIFFS.remove("tiger_320x200x24.bmp");
SPIFFS.remove("tiger16T.bmp");
SPIFFS.remove("woof.bmp");
#else
LittleFS.remove("logo200x200.bmp");
LittleFS.remove("first200x200.bmp");
LittleFS.remove("second200x200.bmp");
LittleFS.remove("third200x200.bmp");
LittleFS.remove("fourth200x200.bmp");
LittleFS.remove("fifth200x200.bmp");
LittleFS.remove("sixth200x200.bmp");
LittleFS.remove("seventh200x200.bmp");
LittleFS.remove("eighth200x200.bmp");
LittleFS.remove("chanceflurries.bmp");
LittleFS.remove("betty_1.bmp");
LittleFS.remove("betty_4.bmp");
LittleFS.remove("marilyn_240x240x8.bmp");
LittleFS.remove("miniwoof.bmp");
LittleFS.remove("test.bmp");
LittleFS.remove("tiger.bmp");
LittleFS.remove("tiger_178x160x4.bmp");
LittleFS.remove("tiger_240x317x4.bmp");
LittleFS.remove("tiger_320x200x24.bmp");
LittleFS.remove("tiger16T.bmp");
LittleFS.remove("woof.bmp");
#endif
}
void downloadFile_HTTP(const char* host, const char* path, const char* filename, const char* target)
{
WiFiClient client;
Serial.print("connecting to ");
Serial.println(host);
if (!client.connect(host, httpPort))
{
Serial.println("connection failed");
return;
}
Serial.print("requesting URL: ");
Serial.println(String("http://") + host + path + filename);
client.print(String("GET ") + path + filename + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"User-Agent: GxEPD2_Spiffs_Loader\r\n" +
"Connection: close\r\n\r\n");
Serial.println("request sent");
bool ok = false;
while (client.connected() || client.available())
{
String line = client.readStringUntil('\n');
if (!ok)
{
ok = line.startsWith("HTTP/1.1 200 OK");
if (ok) Serial.println(line);
//if (!ok) Serial.println(line);
}
if (!ok) Serial.println(line);
//Serial.println(line);
if (line == "\r")
{
Serial.println("headers received");
break;
}
}
if (!ok) return;
uint8_t buffer[512];
#if defined(ESP8266)
client.peekBytes(buffer, 2);
Serial.write(buffer[0]); Serial.write(buffer[1]); Serial.println();
#endif
size_t total = 0;
#if defined(ESP32)
fs::File file = SPIFFS.open(String("/") + target, "w+");
#else
fs::File file = LittleFS.open(target, "w+");
#endif
if (!file)
{
Serial.print(target); Serial.println(" open failed");
return;
}
while (client.connected() || client.available())
{
size_t available = client.available();
size_t fetch = available <= sizeof(buffer) ? available : sizeof(buffer);
if (fetch > 0)
{
size_t got = client.read(buffer, fetch);
file.write(buffer, got);
total += got;
}
delay(1); // yield();
}
file.close();
Serial.print("done, "); Serial.print(total); Serial.println(" bytes transferred");
}
void downloadFile_HTTPS(const char* host, const char* path, const char* filename, const char* fingerprint, const char* target, const char* certificate)
{
// Use WiFiClientSecure class to create TLS connection
#if defined (ESP8266)
BearSSL::WiFiClientSecure client;
BearSSL::X509List cert(certificate ? certificate : certificate_rawcontent);
#else
WiFiClientSecure client;
#endif
Serial.println(); Serial.print("downloading file \""); Serial.print(filename); Serial.println("\"");
Serial.print("connecting to "); Serial.println(host);
#if defined (ESP8266)
if (certificate) client.setTrustAnchors(&cert);
else if (fingerprint) client.setFingerprint(fingerprint);
else client.setInsecure();
#elif defined (ESP32)
if (certificate) client.setCACert(certificate);
#endif
if (!client.connect(host, httpsPort))
{
Serial.println("connection failed");
return;
}
Serial.print("requesting URL: ");
Serial.println(String("https://") + host + path + filename);
client.print(String("GET ") + path + filename + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"User-Agent: GxEPD2_Spiffs_Loader\r\n" +
"Connection: close\r\n\r\n");
Serial.println("request sent");
bool ok = false;
while (client.connected() || client.available())
{
String line = client.readStringUntil('\n');
if (!ok)
{
ok = line.startsWith("HTTP/1.1 200 OK");
if (ok) Serial.println(line);
//if (!ok) Serial.println(line);
}
if (!ok) Serial.println(line);
//Serial.println(line);
if (line == "\r")
{
Serial.println("headers received");
break;
}
}
if (!ok) return;
uint8_t buffer[512];
#if defined(ESP8266)
client.peekBytes(buffer, 2);
Serial.write(buffer[0]); Serial.write(buffer[1]); Serial.println();
#endif
size_t total = 0;
#if defined(ESP32)
fs::File file = SPIFFS.open(String("/") + target, "w+");
#else
fs::File file = LittleFS.open(target, "w+");
#endif
if (!file)
{
Serial.print(target); Serial.println(" open failed");
return;
}
while (client.connected() || client.available())
{
// this doesn't work as expected, but it helps for long downloads
int32_t start = millis();
for (int16_t t = 0, dly = 50; t < 20; t++, dly += 50)
{
if (!(client.connected() || client.available())) break;
if (client.available()) break; // read would not recover after having returned 0
delay(dly);
}
if (!(client.connected() || client.available())) break;
int32_t elapsed = millis() - start;
if (elapsed > 250)
{
Serial.print("waited for available "); Serial.print(millis() - start); Serial.print(" ms @ "); Serial.println(total);
}
size_t available = client.available();
if (0 == available)
{
Serial.print("download error: timeout on available() after "); Serial.print(total); Serial.println(" bytes");
break; // don't hang forever
}
size_t fetch = available <= sizeof(buffer) ? available : sizeof(buffer);
if (fetch > 0)
{
size_t got = client.read(buffer, fetch);
file.write(buffer, got);
total += got;
}
delay(1); // yield();
if (total > 30000) delay(250); // helps for long downloads
}
file.close();
Serial.print("done, "); Serial.print(total); Serial.println(" bytes transferred");
}
// Set time via NTP, as required for x.509 validation
void setClock()
{
configTime(3 * 3600, 0, "pool.ntp.org", "time.nist.gov");
Serial.print("Waiting for NTP time sync: ");
time_t now = time(nullptr);
while (now < 8 * 3600 * 2)
{
delay(500);
Serial.print(".");
now = time(nullptr);
}
Serial.println("");
struct tm timeinfo;
gmtime_r(&now, &timeinfo);
Serial.print("Current time: ");
Serial.print(asctime(&timeinfo));
}

142
libraries/GxEPD2/examples/GxEPD2_Spiffs_Loader/GxEPD2_github_raw_certs.h Normal file
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// http://cacerts.digicert.com/DigiCertTLSRSASHA2562020CA1-1.crt
// CN: DigiCert TLS RSA SHA256 2020 CA1 => name: DigiCert_TLS_RSA_SHA256_2020_CA1
// not valid before: 2021-04-14 00:00:00
// not valid after: 2031-04-13 23:59:59
const char cert_DigiCert_TLS_RSA_SHA256_2020_CA1 [] PROGMEM = R"CERT(
-----BEGIN CERTIFICATE-----
MIIEvjCCA6agAwIBAgIQBtjZBNVYQ0b2ii+nVCJ+xDANBgkqhkiG9w0BAQsFADBh
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBD
QTAeFw0yMTA0MTQwMDAwMDBaFw0zMTA0MTMyMzU5NTlaME8xCzAJBgNVBAYTAlVT
MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxKTAnBgNVBAMTIERpZ2lDZXJ0IFRMUyBS
U0EgU0hBMjU2IDIwMjAgQ0ExMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC
AQEAwUuzZUdwvN1PWNvsnO3DZuUfMRNUrUpmRh8sCuxkB+Uu3Ny5CiDt3+PE0J6a
qXodgojlEVbbHp9YwlHnLDQNLtKS4VbL8Xlfs7uHyiUDe5pSQWYQYE9XE0nw6Ddn
g9/n00tnTCJRpt8OmRDtV1F0JuJ9x8piLhMbfyOIJVNvwTRYAIuE//i+p1hJInuW
raKImxW8oHzf6VGo1bDtN+I2tIJLYrVJmuzHZ9bjPvXj1hJeRPG/cUJ9WIQDgLGB
Afr5yjK7tI4nhyfFK3TUqNaX3sNk+crOU6JWvHgXjkkDKa77SU+kFbnO8lwZV21r
eacroicgE7XQPUDTITAHk+qZ9QIDAQABo4IBgjCCAX4wEgYDVR0TAQH/BAgwBgEB
/wIBADAdBgNVHQ4EFgQUt2ui6qiqhIx56rTaD5iyxZV2ufQwHwYDVR0jBBgwFoAU
A95QNVbRTLtm8KPiGxvDl7I90VUwDgYDVR0PAQH/BAQDAgGGMB0GA1UdJQQWMBQG
CCsGAQUFBwMBBggrBgEFBQcDAjB2BggrBgEFBQcBAQRqMGgwJAYIKwYBBQUHMAGG
GGh0dHA6Ly9vY3NwLmRpZ2ljZXJ0LmNvbTBABggrBgEFBQcwAoY0aHR0cDovL2Nh
Y2VydHMuZGlnaWNlcnQuY29tL0RpZ2lDZXJ0R2xvYmFsUm9vdENBLmNydDBCBgNV
HR8EOzA5MDegNaAzhjFodHRwOi8vY3JsMy5kaWdpY2VydC5jb20vRGlnaUNlcnRH
bG9iYWxSb290Q0EuY3JsMD0GA1UdIAQ2MDQwCwYJYIZIAYb9bAIBMAcGBWeBDAEB
MAgGBmeBDAECATAIBgZngQwBAgIwCAYGZ4EMAQIDMA0GCSqGSIb3DQEBCwUAA4IB
AQCAMs5eC91uWg0Kr+HWhMvAjvqFcO3aXbMM9yt1QP6FCvrzMXi3cEsaiVi6gL3z
ax3pfs8LulicWdSQ0/1s/dCYbbdxglvPbQtaCdB73sRD2Cqk3p5BJl+7j5nL3a7h
qG+fh/50tx8bIKuxT8b1Z11dmzzp/2n3YWzW2fP9NsarA4h20ksudYbj/NhVfSbC
EXffPgK2fPOre3qGNm+499iTcc+G33Mw+nur7SpZyEKEOxEXGlLzyQ4UfaJbcme6
ce1XR2bFuAJKZTRei9AqPCCcUZlM51Ke92sRKw2Sfh3oius2FkOH6ipjv3U/697E
A7sKPPcw7+uvTPyLNhBzPvOk
-----END CERTIFICATE-----
)CERT";
// how to find the certificate was not easy. finally I found it using Mozilla Firefox.
// opened one of the bitmaps, e.g. https://raw.githubusercontent.com/ZinggJM/GxEPD2/master/extras/bitmaps/logo200x200.bmp
// clicked the lock symbol, Connection secure clicked >, show connection details, clicked More Information, clicked View Certificate, clicked Download PEM (chain),
// Opened the .pem file and copied the pems into R"CERT(...)CERT"; strings.
// for https://raw.githubusercontent.com all three pems work on ESP8266 and ESP32, if time is set from ntp.
// but using a root certificate is preferred, as its validity may be longer.
// https://raw.githubusercontent.com
// issued by DigiCert Inc : DigiCert TLS RSA SHA256 2020 CA1
// not valid before: Fri, 18 Mar 2022 00:00:00 GMT
// not valid after: Tue, 21 Mar 2023 23:59:59 GMT
const char github_io_chain_pem_first [] PROGMEM = R"CERT(
-----BEGIN CERTIFICATE-----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const char github_io_chain_pem_second [] PROGMEM = R"CERT(
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const char github_io_chain_pem_third [] PROGMEM = R"CERT(
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94
libraries/GxEPD2/examples/GxEPD2_Spiffs_Loader/SPIFFS_Support.ino Normal file
View File

@@ -0,0 +1,94 @@
#if defined(ESP32)
#include "FS.h"
void listDir(fs::FS &fs, const char * dirname, uint8_t levels) {
Serial.printf("Listing directory: %s\r\n", dirname);
File root = fs.open(dirname);
if (!root) {
Serial.println("- failed to open directory");
return;
}
if (!root.isDirectory()) {
Serial.println(" - not a directory");
return;
}
File file = root.openNextFile();
while (file) {
if (file.isDirectory()) {
Serial.print(" DIR : ");
Serial.println(file.name());
if (levels) {
listDir(fs, file.name(), levels - 1);
}
} else {
Serial.print(" FILE: ");
Serial.print(file.name());
Serial.print("\tSIZE: ");
Serial.println(file.size());
}
file = root.openNextFile();
}
}
void listFiles()
{
listDir(SPIFFS, "/", 0);
}
#elif defined(ESP8266)
#include <FS.h>
#include <LittleFS.h>
/*====================================================================================
This sketch contains support functions for the ESP6266 LittleFS filing system
Created by Bodmer 15th Jan 2017
==================================================================================*/
//====================================================================================
// Print a LittleFS directory list (root directory)
//====================================================================================
void listFiles(void) {
Serial.println();
Serial.println("LittleFS files found:");
fs::Dir dir = LittleFS.openDir(""); // Root directory
String line = "=====================================";
uint32_t totalBytes = 0;
Serial.println(line);
Serial.println(" File name Size");
Serial.println(line);
while (dir.next()) {
String fileName = dir.fileName();
Serial.print(fileName);
int spaces = 25 - fileName.length(); // Tabulate nicely
while (spaces--) Serial.print(" ");
fs::File f = dir.openFile("r");
Serial.print(f.size()); Serial.println(" bytes");
totalBytes += f.size();
}
Serial.println(); Serial.print("Total = ");
int spaces = 25 - 8; // Tabulate nicely
while (spaces--) Serial.print(" ");
Serial.print(totalBytes); Serial.println(" bytes");
Serial.println(line);
Serial.println();
delay(1000);
}
//====================================================================================
#else
void listFiles()
{
Serial.println("LittleFS listFiles() not implemented");
}
#endif