The Arduino-MemoryFree library can be used to obtain the free RAM within your Arduino. In order to use this library, install it first. The instructions to install a third-party library in Arduino are given here: https://www.tutorialspoint.com/using-a-third-party-library-in-arduinoOnce installed, go to: Files → Examples → Arduino-MemoryFree.ExampleAs you can see the BareMinimum example ... Read More

The CronAlarms library in Arduino helps you set cron jobs in Arduino. If you aren't aware of cron jobs, they are scheduled tasks to be carried out at a fixed time interval. An example can be sending a health packet to a server every day at midnight.In order to install ... Read More

The ArduinoJSON library, as the name suggests, helps you work with JSON objects on Arduino. In order to install it, go to the Library Manager and search for ArduinoJSON. Install the library by Benoit Blanchon.This is one of the very heavily documented libraries. In fact, it has its own website ... Read More

The syntax for deserialization is as follows −deserializeJson(doc, json)where doc is the JSON Document in which you will store the deserialized output, and json is the buffer containing the JSON contents.The good news is that the buffer can be taken directly from the PROGMEM. In other words, if you don't ... Read More

You can declare two types of JSON Documents with the ArduinoJson library - StaticJsonDocument and DynamicJsonDocument. Both need the capacity (in bytes) to be specified at the time of declaration.For static docs, the declaration syntax is −StaticJsonDocument doc_name;For example −StaticJsonDocument myDoc;For dynamic docs, the declaration syntax is −DynamicJsonDocument doc_name(capacity);For example, DynamicJsonDocument ... Read More

The ArduinoJSON library, as the name suggests, helps you work with JSON objects on Arduino. In order to install it, go to the Library Manager, and search for ArduinoJSON. Install the library by Benoit Blanchon.This is one of the very heavily documented libraries. In fact, it has its own website: ... Read More

Arduino contains a library that helps with base64 encode and decode. You can download it from the Library Manager. Search for base64, and install the library by Densaugeo.Now, open a new sketch and run the following sample code −#include "base64.hpp" unsigned char normal_text[20] = "Hello World"; unsigned char base64_text[20]; ... Read More

Arduino Uno has 1 kB of EEPROM storage. EEPROM is a type of non-volatile memory, i.e., its contents are preserved even after power-down. Therefore, it can be used to store data that you want to be unchanged across power cycles. Configurations or settings are examples of such data.In this article, ... Read More

Arduino Uno has 1 kB of EEPROM storage. EEPROM is a type of non-volatile memory, i.e., its contents are preserved even after power-down. Therefore, it can be used to store data that you want to be unchanged across power cycles. Configurations or settings are examples of such data.In this article, ... Read More

Arduino Uno has 1 kB of EEPROM storage. EEPROM is a type of non-volatile memory, i.e., its contents are preserved even after power-down. Therefore, it can be used to store data that you want to be unchanged across power cycles. Configurations or settings are examples of such data.In this article, ... Read More