Interface and Application Programming
ESP8266 WiFi Module and Blynk App
This week's task is to connect a project to a smart phone. For that, I went for a simple ESP8266 module and connected it to Blync - and these are the steps:
First, I downloaded Blynk Libraries (latest version)
and ESP8266 flasher tool. Then, I launched the Arduino software. From File -> Preferences, in additional board manager URL
I typed - http://arduino.esp8266.com/stable/package_esp8266com_index.json
From tools -> boards -> Board Manager -> I installed the esp8266 package.
Then, I extract the blynk library and copied the content of the libraries folder into -
documents -> Arduino -> Libraries. Now I installed the Blynk app on my phone and created an account.
Then, I created a project:
Blynk then sent me an Auth Token by email:
I created a button:
and gave it a name, setting it to pin D13.
I toggled the mode to "switch"
Then, I opened Arduino IDE.
Selected board as Arduino Uno and COM5 as the port. Then, copied this code:
I replaced yourAUTH with the Auth token sent to my email.
and replaced youSSID with WiFi name and YourPassword with WiFi Password.
I, then uploaded the code:
I unplugged the Arduino board from the computer, and connected it to the ESP module as follows:
TX -> Rx
Rx -> Tx
Gnd -> Gnd
Vcc -> 3.3v
and then plugged the Arduino to the computer, and went into Arduino's serial monitor, sat baud rate to 115200:
This appeared to be a connection issue, also apparent on the Blynk app (below):
