arduino-esp32 VS platform-espressif32

Are you perhaps this poster? https://github.com/espressif/arduino-esp32/issues/5250 - asking that poster for the list I just asked for went nowhere and it was auto-closed.

I use a ESP32-WROOM-32E-N16 (16 MB SPI flash) with default_16MB.csv partitions table from https://github.com/espressif/arduino-esp32/tree/master/tools/partitions. I need to store multiple files in SPIFFS memory (html for webserver and log file). For that, I use Arduino SPIFFS.h library for ESP32 and it works well until it doesn't work... I get the error : [E][vfs_api.cpp:301] VFSFileImpl(): fopen(/spiffs/log/logFile1.txt) failed. The file exist but I can't open it, and this even if I shutdown the ESP32. I can make it work again only if I reset it with my ESP-Prog board.

/* * Based on the following examples: * WiFi > WiFiMulti: https://github.com/espressif/arduino-esp32/blob/master/libraries/WiFi/examples/WiFiMulti/WiFiMulti.ino * WiFi > WiFiScan: https://github.com/espressif/arduino-esp32/blob/master/libraries/WiFi/examples/WiFiScan/WiFiScan.ino * Complete project details at our blog: https://RandomNerdTutorials.com/ * */ #include #include WiFiMulti wifiMulti; // WiFi connect timeout per AP. Increase when connecting takes longer. const uint32_t connectTimeoutMs = 10000; void setup(){ Serial.begin(115200); delay(10); WiFi.mode(WIFI_STA); // Add list of wifi networks wifiMulti.addAP("ssid_from_AP_1", "your_password_for_AP_1"); wifiMulti.addAP("ssid_from_AP_2", "your_password_for_AP_2"); wifiMulti.addAP("ssid_from_AP_3", "your_password_for_AP_3"); // WiFi.scanNetworks will return the number of networks found int n = WiFi.scanNetworks(); Serial.println("scan done"); if (n == 0) { Serial.println("no networks found"); } else { Serial.print(n); Serial.println(" networks found"); for (int i = 0; i < n; ++i) { // Print SSID and RSSI for each network found Serial.print(i + 1); Serial.print(": "); Serial.print(WiFi.SSID(i)); Serial.print(" ("); Serial.print(WiFi.RSSI(i)); Serial.print(")"); Serial.println((WiFi.encryptionType(i) == WIFI_AUTH_OPEN)?" ":"*"); delay(10); } } // Connect to Wi-Fi using wifiMulti (connects to the SSID with strongest connection) Serial.println("Connecting Wifi..."); if(wifiMulti.run() == WL_CONNECTED) { Serial.println(""); Serial.println("WiFi connected"); Serial.println("IP address: "); Serial.println(WiFi.localIP()); } } void loop(){ //if the connection to the stongest hotstop is lost, it will connect to the next network on the list if (wifiMulti.run(connectTimeoutMs) == WL_CONNECTED) { Serial.print("WiFi connected: "); Serial.print(WiFi.SSID()); Serial.print(" "); Serial.println(WiFi.RSSI()); } else { Serial.println("WiFi not connected!"); } delay(1000); }

That has not been my experience at all as a user. ESPHome is even easier than Arduino and I haven’t touched firmware code in years.

The price makes a huge difference when you have dozens of them operating which is trivial with a decent hydroponics and smarthome setup. I also have a dozen boards just sitting idle ready to be called up to replace a failed one or use for a new project because they’re so cheap.

Not to mention the Arduino core is supported officially by ESP32: https://github.com/espressif/arduino-esp32

Who actually uses Arduino in production? Everyone just uses modules (for ESP32) or rolls their own using the Arduino board as a reference.

They've done a good job of hiding the RTOS from you and making most sketches run fine without porting, but you're still running as a task under the RTOS, yielding between loop() calls[1]. This leads to mysterious timing issues if you aren't aware of it[2]

It doesn't appear that the Arduino core for the Renesas chip is using the RTOS, at least by default -- its main loop is literally doing while (1) { loop(); }, similar to how the AVR core works. [3, 4]

  1. https://github.com/espressif/arduino-esp32/blob/72c41d09538663ebef80d29eb986cd5bc3395c2d/cores/esp32/main.cpp#L45

https://github.com/lewisxhe/esp32-camera-series/issues/11 may interest you - you need all the files in the same dir, not just the .ino by itself

I copied all the libraries from here: https://github.com/espressif/arduino-esp32/tree/master/libraries

I would also take a look at esp32 and possibly raspberry pi pico W as well.

For the esp32 there is this official example of what I think is faking a usb drive: https://github.com/espressif/arduino-esp32/blob/master/libra...

Not all ESP32s support USB OTG and I don’t have the correct one here atm to test with. Not sure how much more work would be needed to serve files from sd card.

You could then use a web server on the esp32 to transfer your files

Setup the Software: Next, you'll need to install the appropriate libraries for the ESP32 in your Arduino IDE. The ESP32 Arduino core is what you'll likely need.

esptool.py reports "Hard resetting via RTS pin..." yet I need to press Boot, then press Reset to get the sketch to run. Espressif appears aware of this problem and has no solution. https://github.com/espressif/arduino-esp32/issues/6762

This is probably the simplest next step before fully transitioning to ESP-IDF and dumping PlatformIO. Here's the PlatformIO example repo that does just this. https://github.com/platformio/platform-espressif32/tree/develop/examples/espidf-arduino-blink

OK I FOUND IT! There has been a change on the "Espressif 32: development platform for PlatformIO" somewhere between versions 3.0.0 and 3.4.0!

Or do you mean I should just post the issue here: https://github.com/platformio/platform-espressif32/issues ?

Yes this seemed to be it. I don't know what is the difference between "development platform" and "development framework" (IDF), but all I know is that the change that made thinfs slower happened in the former. And I know that because I reverted the version used inside Platform.io. Other than that, I have no idea what is happening in the background. I just use PlatformIO on VSC and have pretty basic programming skills.

platform = https://github.com/platformio/platform-espressif32.git#feature/arduino-upstream platform_packages = framework-arduinoespressif32 @ https://github.com/espressif/arduino-esp32.git#2.0.0

I have a generic ESP32-S2-WOOR 1.1 board and everything worked pretty much out of the box but I used the platformio definition not the Arduino one. From memory it used an older version of the Espressif core than the Arduino one. It's worth a try.