Rubiks cube

Programming Arduino mini pro using USB to TTL converter

Here in this post i'm going to tell you how to program your arduino mini pro using a USB to TTL converter.

Requires:

1.USB to TTL converter( I used D-SUN)
2.Arduino mini pro
3.Connecting wires

Connect ESP8266 to internet(Hotspot) using AT commands

 If your hardware setup is not ready then see my post ESP8266 hardware setup

Now you are ready to send your first Command!
.
The updated firmware versions require Carriage-Return-and-New-Line line endings and
there appears to be no way to configure screen to send both with one key press. Instead, you need
to press <enter> or Ctrl-M then follow that with Ctrl-J.

1. Open your Hyper terminal

2.Configure Hyper terminal

Update the Firmware in Your ESP8266 Wi-Fi Module

 ESP8266 is low cost WiFi module suitable for adding WiFi functionality to an
existing microcontroller project via a UART serial connection. The module can even be reprogrammed to act as a standalone WiFi connected device–just add power. Here this tutorial will help you to update the firmware of your ESP8266.

Free RTOS inter task communication

Inter Task Communication

q  Queue management

q  Resources management

Interrupt and Polling

What is interrupt?

In an embedded system we use many sensors, serial communication, ADC and much more Microcontroller communicates

FreeRTOS Task

         A task is a user define function with a given priorityTask must return void and take a void pointer parameter.

void ATaskFunction( void *pvParameters );

Each task is a small program in its own right normally