Control Remote Toy Car

Hardware

The following device is to connect Raspberry PI GPIO to Toy Car Remote Control, you have to create 4 of this to control a simple remote car for moving left, right, forward, and backward control.

Connect With Remote Device	My Test Remote Toy Car
	Device Kit Set
Scratch GPIO Test

Pin Connect

Raspberry Pi	Control Circuit	Remote
GPIO 17	Circuit A	LEFT
GPIO 27	Circuit B	RIGHT
GPIO 22	Circuit C	Forward
GPIO 23	Circuit D	Backward

Simple Python Test

This simple test is to control GPIO 4 ON and OFF, you have to connect to Forward Pin on Toy Car Remote before RUN

$ sudo nano simpletest.py

import time
import RPi.GPIO as io
io.setmode(io.BOARD)
pir_pin = 7
io.setup(pir_pin, io.OUT)
while True:
    io.output(pir_pin, io.HIGH)
    print("Forward On")
    time.sleep(3)
      io.output(pir_pin, io.LOW)
    print("Forward OFF")
      time.sleep(3)

Complete Test Script

$sudo nano toycarremote.py

import time

import RPi.GPIO as gpio

class ToyCarRemote:

def __init__(self, forward_pin=11, backward_pin=13, left_pin=15, right_pin=16, test_pin=7):

#gpio.setmode(gpio.BCM)

#test_pin = 4 # GPIO 4

#forward_pin = 17 # (GPIO 17)

#backward_pin = 27 # GPIO 27

#left_pin = 22 # GPIO 22

#right_pin = 23 # GPIO 24

self.test_pin=test_pin

self.forward_pin=forward_pin

self.backward_pin=backward_pin

self.left_pin=left_pin

self.right_pin=right_pin

gpio.setmode(gpio.BOARD)

test_pin = 7 # GPIO 4

forward_pin = 11 # (GPIO 17)

backward_pin = 13 # GPIO 27

left_pin = 15 # GPIO 22

right_pin = 16 # GPIO 23

gpio.setup(self.test_pin, gpio.OUT)

gpio.setup(self.forward_pin, gpio.OUT)

gpio.setup(self.backward_pin, gpio.OUT)

gpio.setup(self.left_pin, gpio.OUT)

gpio.setup(self.right_pin, gpio.OUT)

gpio.output(self.forward_pin, gpio.LOW)

gpio.output(self.backward_pin, gpio.LOW)

gpio.output(self.left_pin, gpio.LOW)

gpio.output(self.right_pin, gpio.LOW)

def clearAll(self):

gpio.output(self.forward_pin, gpio.LOW)

gpio.output(self.backward_pin, gpio.LOW)

gpio.output(self.left_pin, gpio.LOW)

gpio.output(self.right_pin, gpio.LOW)

def updown(self, direction, OnOff, tsecond): # direction F:forward , B:Backward

if direction in ('F'):

gpio.output(self.backward_pin, gpio.LOW)

gpio.output(self.forward_pin, OnOff)

if direction in ('B'):

gpio.output(self.forward_pin, gpio.LOW)

gpio.output(self.backward_pin, OnOff)

time.sleep(tsecond)

def leftright(self, direction, OnOff, tsecond): # direction L:left , R:Right

if direction in ('L'):

gpio.output(self.right_pin, gpio.LOW)

gpio.output(self.left_pin, OnOff)

if direction in ('R'):

gpio.output(self.left_pin, gpio.LOW)

gpio.output(self.right_pin, OnOff)

time.sleep(tsecond)

#try:

# while True:

# gpio.output(test_pin, gpio.HIGH)

#except KeyboardInterrupt:

# gpio.cleanup()

if __name__ == '__main__':

tcr = ToyCarRemote()

for i in range(20):

print('\n', 'Loop : ', i)

print 'Forward 2 Second'

tcr.updown('F', gpio.HIGH , 0)

tcr.leftright('L', gpio.HIGH, 0)

time.sleep(2)

tcr.clearAll()

print 'Stop Forward'

tcr.updown('B', gpio.HIGH, 0)

time.sleep(2)

tcr.clearAll()

Reference

http://winkleink.blogspot.co.uk/2013/02/surrey-hampshire-hackspace-evening-8th.html

Contents

1 Control Remote Toy Car
2 Reference

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