Earle F. Philhower, III
4e50fe866a
Pull in the ESP8266 File/Dir/etc. filesystem and port LittleFS and SD/SDFS to the RP2040. See https://arduino-esp8266.readthedocs.io/en/latest/filesystem.html for more information
57 lines
1.3 KiB
Arduino
57 lines
1.3 KiB
Arduino
// Released to the public domain
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//
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// This sketch will read an uploaded file and increment a counter file
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// each time the sketch is booted.
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// Be sure to install the Pico LittleFS Data Upload extension for the
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// Arduino IDE from:
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// https://github.com/earlephilhower/arduino-pico-littlefs-plugin/
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// The latest release is available from:
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// https://github.com/earlephilhower/arduino-pico-littlefs-plugin/releases
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// Before running:
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// 1) Select Tools->Flash Size->(some size with a FS/filesystem)
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// 2) Use the Tools->Pico Sketch Data Upload tool to transfer the contents of
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// the sketch data directory to the Pico
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#include <LittleFS.h>
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void setup() {
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Serial.begin(115200);
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delay(5000);
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LittleFS.begin();
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char buff[32];
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int cnt = 1;
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File f = LittleFS.open("counts.txt", "r");
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if (f) {
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bzero(buff, 32);
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if (f.read((uint8_t *)buff, 31)) {
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sscanf(buff, "%d", &cnt);
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Serial.printf("I have been run %d times\n", cnt);
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}
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f.close();
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}
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cnt++;
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sprintf(buff, "%d\n", cnt);
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f = LittleFS.open("counts.txt", "w");
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if (f) {
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f.write(buff, strlen(buff));
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f.close();
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}
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Serial.println("---------------");
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File i = LittleFS.open("file1.txt", "r");
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if (i) {
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while (i.available()) {
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Serial.write(i.read());
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}
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Serial.println("---------------");
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i.close();
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}
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}
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void loop() {
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}
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