Tag: raspberry pi

12 April 2016

MRPi1 – Waiter

The python program :

from mrpi1_lib import *
import time

# activer le controle
controlEnable()

# avancer de 30 cm
forwardC(15, 1200)

# boucle infini
while 1:
  # lecture capteur de proximité 3
  p = proxSensor(3)

  # pause de 0.5 seconde
  time.sleep(0.5)

  # si capteur > 300
  if p > 300:
    backC(15,1200) #reculer de 30 cm
exit()

14 March 2016

Line follower

On this video the MRPi1 robot follows a black line autonomously. The 3 ground sensors are used.

3 March 2016

MRPi1 – Wake up alarm

Wake up alarm with MRPi1 robot. The robot stops the alarm automaticly when the robot detects the light.

Python program :

# import mrpi1 lib
from mrpi1_lib import *
import time

try:

  while 1:
    al1 = ambiantLight(1) # read ambiant light,sensor 1
    al2 = ambiantLight(2)
    al3 = ambiantLight(3)
    al4 = ambiantLight(4)
    al5 = ambiantLight(5)
    al6 = ambiantLight(6)
    print "Ambiant light = %d %d %d %d %d %d" %(al1, al2, al3, al4, al5, al6)

    if (al1 < 4000 and al2 < 4000): # light detects
     print "end alarm"
     writeCommand("SPD")# disable speaker
     exit()
    else:
      playWav("alarmClock.wav") # play alarm wav file
    time.sleep(0.2)

except:
  writeCommand("SPD") # disable speaker
  exit()

24 February 2016

MRPi1 football player

Autonomous control with python program.
Used of the six proximity sensors

Raspberry Pi robot – MRPi1 football from macerobotics on Vimeo.

18 February 2016

PID control

In this video MRPi1 robot is controled by two PID controller. The PID controller calculates an error values between motors encoders and desired value (orientation and distance).