Date:10/8/2020-16/8/2020
Title: Redefine the
methods to create the system
In this
week, I decided to create a new circuit diagram for my project because of the
changes of hardware that I have made in my Fyp2. So the picture below show my
new circuit diagram.
|
Ultrasonic Us-100 |
ESP8266 |
|
Vcc Pin |
Vin Pin |
|
Trig Pin |
D0 |
|
Echo Pin |
D1 |
|
GND Pin |
GND |
For I2C 16x2 LCD Screen, it using an I2C communication interface that
make it only needs 4 pins for the LCD display which is Vcc, GND, SDA, SCL. Vcc
and GND will connect to Vu and GND pin at nodemcu ,SDA pin connect to D2 and
SCL pin connect to D1 Connect Green,Yellow and Red LEDs Negative Terminal to
GND and Positive terminal to the D4,D5 and D3 pin respectively. Then, connect
Buzzer GND to GND and Positive terminal to D5 pin of NodeMCU Esp8266
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