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Description:

Objective:

In this tutorial, we will use Osoyoo Model-3 Robot Learning Kit to make a simple remote controlled smart car. Once the car installation is completed, we will use an Infrared Remote to control the car movements including go forward, go back, left turn and right turn.

Parts and Devices:

No. Device Picture Qty. Link
1 IR receiver 1 Click here to buy
2 IR remote controller 1 Click here to buy
3 Hex Screwdriver 1 Click here to buy
4 20pin 15cm Female to Female Cable 1 Click here to buy

Hardware Installation:
Step 1: Install the smart car basic frame work as per Lesson 1 . If you have already completed installation in Lesson 1 , just keep it as is.

Step 2: Add an IR receiver module onto the car.
Note: There are some differences between two versions for OSOYOO motor shield(V1.0 and V1.1/V1.2),

If you get OSOYOO motor shield V1.1/V1.2, please install the IR receiver module on OSOYOO motor shield V1.1/V1.2 as following:

  If you get OSOYOO motor shield V1.0, please see this tutorial:

OSOYOO Model-3 V2.0 Robot Car Lesson 2: IR Remote Controlled （OSOYOO Motor Shield V1.0）

Software Installation:

Open-source
Software(IDE)		 Download IDE here:
https://www.arduino.cc/en/Main/Software?setlang=en
7 zip is a free zip
utility that un-zips zip files		 Download 7zip here for free
https://www.7-zip.org/

Step 1: Install latest IDE (If you have IDE version after 1.1.16, please skip this step)
Download IDE from https://www.arduino.cc/en/software, then install the software.

Step 2: Install IRremote library into IDE (If you have already installed IRremote library, please skip this step)
Download IRremote library from https://downloads.arduino.cc/libraries/github.com/z3t0/IRremote-4.3.1.zip, then import the library into IDE

NOTE!!

  1. If you have a late version of Arduino IDE with a library IRRobotRemote, it may conflict and you may have to remove that library.Make sure to delete Arduino(root)/libraries/RobotIRremote. Where Arduino(root) refers to the install directory of Arduino. The library RobotIRremote has similar definitions to IRremote and causes errors.
  2. Learn how to install an Arduino library on Arduino IDE, please visit https://osoyoo.com/2017/05/08/how-to-install-additional-arduino-libraries/

In the pop up window, go to your downloads folder, select the IRremote.zip file you downloaded just now.

Step 3: Download Lesson 2 sample code and unzip the download zip file lesson2.zip, you will see a folder called lesson2.

Step 4: Connect OSOYOO Basic Board for Arduino to PC with USB cable, Open IDE -> click file -> click Open -> choose code “lesson2.ino” in lesson2 folder, load the code into the board.

Notice: Shut off your battery or Unplug your power adapter when upload sketch code to OSOYOO Basic Board for Arduino.


Step 5: Choose corresponding board and port for your project,upload the sketch to the board.

Testing:
Press IR controller keys to control the car movements:

Note:
1) Please try to align the transmitter port of the IR remote control with the IR receiver head as the picture in the attachment.
2) Please press remote control gently and at regular intervals

Trouble shooting:
Some user found that this IR remote does not work. The reason might be the IR remote sends different button code which does not match our sample code. In order to solve this problem. Please take following steps:
Step A) Get the IR code of each button in your IR remote.
https://osoyoo.com/driver/2wd/irtest.zip

Upload above sketch into your OSOYOO Basic Board for Arduino and open the serial monitor in your upper-right corner.

press the ◄ ► ▲ ▼”OK” button in your remote, you will see their IR code as following picture:

Write down the IR code of your control buttons ◄ ► ▲ ▼ “OK” button,

STEP B)replace the IR code in lesson 2 sketch file:
Open your Lesson 2 code again, then you will see following lines define the IR CODE of each button:
#define IR_ADVANCE       24       //code from IR controller “▲” button
 #define IR_BACK          82       //code from IR controller “▼” button
 #define IR_RIGHT         90       //code from IR controller “>” button
 #define IR_LEFT          8       //code from IR controller “<” button
 #define IR_STOP          28       //code from IR controller “OK” button
 #define IR_turnsmallleft 13       //code from IR controller “#” button
Please change the value of each button in above lines to match the code from Step A). If you don’t know how to change, just send email to [email protected] and give us the code of each button from Step A), I can help you to change the code and email new sketch file to you.
Above method can also allow you to use other IR sending device (i.e TV remote, DVD remote, air conditioner remote etc) to control the car. Just use Step A) to get the key code of your remote and change the sketch file in Step B), it will work.