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.
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 V1.0, please install the IR receiver module with 2pcs M3 plastic screws, 2pcs M3 plastic pillars and 2pcs M3 plastic nuts as follow:
Please connect the IR receiver based as follow:
If you get OSOYOO motor shield V1.1, please see this tutorial:
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.
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.
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. Download code from this link.
Upload above irtest.ino 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.
When I press the forward or backward button the left wheel gets stuck and so it turns instead. I tried the steps above to see if that was the issue, but it didn’t change anything.
If you get OSOYOO motor shield V1.0, please install the IR receiver module with 2pcs M3 plastic screws, 2pcs M3 plastic pillars and 2pcs M3 plastic nuts as follow:
When I press the forward or backward button the left wheel gets stuck and so it turns instead. I tried the steps above to see if that was the issue, but it didn’t change anything.