Want a unique identifier for your ESP32 chip? Learn how to get the factory programmed MAC address of your ESP-32 in the ESP-IDF framework.
Tag: ESP32
How to check free memory in ESP32
There are several points in your code’s execution journey where the amount of available memory maybe important. Learn how to get that value.
How to generate random string on ESP32
Need to generate a random alphanumeric string on ESP32 consisting of characters from a pool? Here’s a function to do that on ESP-IDF and Arduino.
ESP32 nimBLE: How to send notifications
Learn how to send notifications through ESP32 over BLE using the nimBLE stack of ESP-IDF in this easy-to-understand tutorial.
How to use Mutex in ESP-IDF
Want to access critical resources from multiple threads in ESP32. Learn how to use Mutexes in IDF for achieving just that.
ESP32 Arduino time operations
This article can act as a reference whenever you need to perform time operations on ESP32 in the Arduino IDE (bookmark it!).
ESP32 – Free memory occupied by JSON objects
Observing your code running out of memory after a few iterations? Memory leaks caused by JSON objects might be the culprits. Learn how to fix them.
How to discover ESP32 service over mDNS
Learn how to advertise services provided by your ESP32 over mDNS to facilitate discovery by other devices on the local network.
ESP32 – Connect to best WiFi from multiple options
In lab or in field, it is desirable to add multiple WiFi credentials to ESP32 and allow it to connect to the best option. Learn how to do that using WiFiMulti.
How to connect ESP32 to AWS IoT Core
Learn detailed steps for connecting the ESP32 to AWS IoT Core. This article covers AWS setup, ESP32 setup, code walkthrough and testing.