Case 08: IR Remote Control Car

Introduction

Control Cutebot to drive by remote control.

Programming Preparation

Please refer to：Preparing Programming Environment

Infrared remote control key value table

key	return value	key	return value	key	return value
Power	11
MENU	12
+	13	UP	14	Return	15
Left	16	OK	17	Right	18
-	19	Down	20	0	0
1	1	2	2	3	3
4	4	5	5	6	6
7	7	8	8	9	9

Sample code

from cutebot import *

# Create a sample for Cutebot category
cutebot = Cutebot()    

# While true, keep detecting the values received by the IR receiver
# Control the route of the Cutebot based on the received value
while True:
    Ir = cutebot.get_ir_value()
    if Ir == 14:
        cutebot.set_speed(50, 50)
    if Ir == 16:
        cutebot.set_speed(-30, 30)
    if Ir == 17:
        cutebot.set_speed(0, 0)
    if Ir == 18:
        cutebot.set_speed(30, -30)
    if Ir == 20:
        cutebot.set_speed(-50, -50)

Code details

1. Import the modules that we need for the program: cutebot module contains the classes and functions that operate on the Cutebot smart car.

from cutebot import *

2. Create a sample for Cutebot category.

cutebot = Cutebot()

3. While true, keep detecting the values received by the IR receiver.Control the route of the Cutebot based on the received value.

while True:
    Ir = cutebot.get_ir_value()
    if Ir == 14:
        cutebot.set_speed(50, 50)
    if Ir == 16:
        cutebot.set_speed(-30, 30)
    if Ir == 17:
        cutebot.set_speed(0, 0)
    if Ir == 18:
        cutebot.set_speed(30, -30)
    if Ir == 20:
        cutebot.set_speed(-50, -50)

Results

After turning on the power, the Cutebot is controlled by IR remote control to drive.

Exploration

Is it possible to control more functions of the Cutebot by IR remote control?