1. Project Introduction

This project is using ESP8266 Expansion Board to work as a data bridge between Android mobile APP and toy car, you can send control signal to the car and get sensor data from the car by tapping the APP buttons.

The project has an Arduino UNO board as car controller, a L298N module as  motor driver, a three-wheel chassis as framework

2. Parts and Devices List

Devices
qty
Arduino UNO
1
ESP8266 Expansion Board
1
L298N
1
3-Wheels Car Chasis
1
DC Male
1
DS18B20 Temperature Sensor
1
1
Light Sensor
1
Dupont Wires
some
USB Cable
1

3. Connection

Please insert the ESP8266 Expansion Board into Arduino UNO R3 Board as per following pictures, then set the two switches in ESP8266 Expansion Board to “ON” so that the ESP8266 Expansion Board is connected with Arduino UNO serial port.

arduino+uarttowifi

wifiandbuletooth

3.1  Motor

3.2 Light Sensor Module

Light Sensor Arduino
AO Pin A2
VCC +5V
GND GND

3.3 Flame Sensor Module

Flame Sensor Arduino
 AO Pin A3
 VCC +5V
GND GND

3.4 DS18B20 Temperature Sensor Module

DS18B20Temperature Sensor Arduino
 S Pin D2
Middle +5V
GND

3.5 Motion Sensor Module

Motion Sensor Arduino
OUT Pin D4
VCC +5V
GND GND

4 Code

http://osoyoo.com/wp-content/uploads/2017/03/arduino_esp8266uart_wiifi_code.txt

5 Debug

Set the switch of ESP8266 Expansion Board to “12” , load above code into Arduino UNO board, then set the switch to “ON” and turn on the power .

In your Android mobile phone, download and install the APP:http://osoyoo.com/wp-content/uploads/2017/01/BTcar.apk

Now use mobile phone to search your surrounding wifi hotspots, you can find a wifi hotspot named “DoitWIFI_Config”, connect this hotspot(No Password), as shown in figure

Screenshot_2017-01-20-11-01-28-572_

Screenshot_2017-01-20-11-02-02-651

Click the up and down buttons , the car will move forward and backward respectively. Tap left and right buttons and your call move towards left and right. Tap the middle button can stop the car and get sensor data.

Leave a Reply

WordPress spam blocked by CleanTalk.
Bombax Theme designed by itx