Category "arduino-esp32"

My esp32 gives random reading in the serial monitor

Iam using ESP32 with 4 type of sensors and external power supply to send the data to ThinkSpeak cloud. the Device was work noromally for cuble of months after t

After wiping out EEPROM with NULL, it later shows NBSP(255) instead of NULL(0)

So, I am a curious person. And been tinkling with NVS in ESP32 WROOM 32D for storage. What I did was simply write a formatting code to wipeout a few addresses i

How to generate a symmetric key in C or C++ the same way this script does?

I am implementing Azure DPS (device provisioning service) for my ESP32-based firmware. The bash script I use so far is as follows (where KEY is the primary key

(ESP32 Arduino Wrover-E) How to make the following snippet allocate resources only in External RAM?

The goal is to allocate an array of classes purely in External Ram of the ESP32. They say that the compiler will allocate big chuncks of space automatically in

Environment Variables in Arduino IDE?

How to create and access the environment variables in Arduino IDE? In my case, I want to connect the AWS IoT MQTT endpoint but am worried to save the certificat