Upload Files to LittleFS
LittleFS is now integrated into Arduino ESP32 Core v2, making it easier to store files on the ESP32’s Flash memory. To upload files to LittleFS, follow these steps:…
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LittleFS
LittleFS (Little File System) is a lightweight file system designed for microcontrollers and embedded systems. It is an alternative to SPIFFS (SPI Flash File System) and is often…
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ESP32 Flash and Ram
ESP32’s Flash memory is an external SPI-based storage that serves multiple purposes: This external SPI-based storage IC is embedded within the ESP32 module and enclosed by a metal…
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Using Preferences
The API for Preferences is simple and easy to use. Here’s a breakdown of the typical operations: 1. Include the Preferences Library: 2. Create a Preferences Object: 3….
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ESP32 Preferences
The ESP32 Preferences library provides a simple and efficient way to store key-value pairs in the ESP32’s non-volatile storage (NVS), making it ideal for saving small amounts of…
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Volatile Memroy
The volatile keyword in C/C++ is used to inform the compiler that a particular variable can be changed at any time by something outside the normal program flow,…
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Timer Interrupt
Example: Using a Timer to Trigger an Interrupt Explanation: Key Points to Consider:
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External Interrupts
The ESP32 allows interrupts to be triggered on GPIO pins. The most common scenarios are when a pin changes state (either HIGH to LOW or LOW to HIGH),…
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ESP32 Interrupts
An interrupt is a mechanism that allows a microcontroller like the ESP32 to pause the execution of the current program and execute a special function (called an interrupt…