npm install socket.io

the logic of blink is :

• blink the number of the current process with an interval of 1 sec
• 5 blink with 0.5 sec of interval for validate the test
• 5 blink with 0.2 sec of interval for invalid process / connection
• 10 blink with 0.2 sec of interval for invalid user interaction

example : step 1 = init phase 1 => one blink step 2 = wifi testing => 5 blink of 0.5 interval => validate step 3 = init phase 2 => 2 blink with 1 sec interval step 4 = sensor testing => 5 blink with 0.2 interval => !! ERROR of the sensor !!

Order test :

1. Wifi Connection
2. Server Connection
3. Gyroscope Connection

Importante Note for ESP :

• first blink its normal connection of wifi (ignore it)

Order test :

1. Wifi Connection
2. Server Connection
3. Button Test => you have 5 sec for press the button
4. HC04 Test sensor => you have 5 sec for put your hand in front of the sensor between 5 and 10 cm