UnCAT Robot Based on DS18B20 Temperature Sensortitled
I used to dream of my kitty talking to me and now I am going to make my toy kitty react to my actions and even CHAT WITH ME!
Step 1: Schematic
Let's make a draft about the project.
Firstly I need a raspberry pi, which has a Linux OS, can compile Python and even has an access to the Internet. Secondary I would like to use Arduino to get some data as well as realize some basic physical reactions.
Thirdly a webcam is required to capture user actions.
Finally is to make the connection to an AI chatbot.
and a monitor is required for raspberry pi
Step 2: Assambling
Just have everything in their right position.
Step 3: Initial Raspberry Pi
Hint: just install the RASBAIN
Step 4: Test the Pi-camera
here is a test code from pythonprogramming.net
import io import picamera import cv2 import numpy #Create a memory stream so photos doesn't need to be saved in a file stream = io.BytesIO() #Get the picture (low resolution, so it should be quite fast) #Here you can also specify other parameters (e.g.:rotate the image) with picamera.PiCamera() as camera: camera.resolution = (320, 240) camera.capture(stream, format='jpeg') #Convert the picture into a numpy array buff = numpy.fromstring(stream.getvalue(), dtype=numpy.uint8) #Now creates an OpenCV image image = cv2.imdecode(buff, 1) #Load a cascade file for detecting faces face_cascade = cv2.CascadeClassifier('/usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml') #Convert to grayscale gray = cv2.cvtColor(image,cv2.COLOR_BGR2GRAY) #Look for faces in the image using the loaded cascade file faces = face_cascade.detectMultiScale(gray, 1.1, 5) print "Found "+str(len(faces))+" face(s)" #Draw a rectangle around every found face for (x,y,w,h) in faces: cv2.rectangle(image,(x,y),(x+w,y+h),(255,255,0),2)#Save the result image cv2.imwrite('result.jpg',image)
Step 5: PySerial Encapsulates the Access for the Serial Port
connect the Raspberry Pi and the Arduino Uno with the cable. After installing pySerial, reading data from Arduino is straightforward:
>>> import serial >>> ser = serial.Serial('/dev/tty.usbserial', 9600) >>> while True: ... print ser.readline() '1 Hello world!\r\n' '2 Hello world!\r\n' '3 Hello world!\r\n' Writing data to Arduino is easy too (the following applies to Python 2.x): >>> import serial # if you have not already done so >>> ser = serial.Serial('/dev/tty.usbserial', 9600) >>> ser.write('5')