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====General==== http://microcontrollershop.com/product_info.php?products_id=2121<br> http://www.obdev.at/products/avrusb/prjhid.html<br> http://blogs.msdn.com/coding4fun/archive/2007/02/18/1709215.aspx<br> http://avrusb.wikidot.com/project:wishabi<br> http://www.trossenrobotics.com/robot-parts.aspx<br> http://www.thinkwiki.org/wiki/Compact_Flash_boot_drive<br> http://www.hitachi-displays.com/en/catalog/amusement_devices/2012147_18541.html - broken link<br> http://www.logicsupply.com/<br> http://www.logicsupply.com/products/d510mo<br> http://www.xenarc.com/product/MDT-X7000.html<br> http://www.xenarc.com/product/700IDT.html<br> I bought my scanner new from ebay for $20. It handles CAN protocol connects to my laptop with USB or BT and is usable from many software apps. There are many software apps that are easy to get have way more functionality than the handheld scanners. I can do everything from find a failing sensor to reprogram the fuel delivery curve.<br> http://www.obdkey.com/ - bluetooth obd reader, Torque for Android<br> http://www.scantool.net/<br> http://trimslice.com/web/<br> http://www.fit-pc.com/web/<br> http://www.fit-pc3.com/<br> http://www.display-touch.com/index.php<br> http://www.mini-box.com<br> http://store.mp3car.com/<br> http://carpcpower.com<br> Pioneer GM-D8604 amp<br> ====Raspberry Pi==== http://www.raspberrypi.org/<br> [http://blog.brianhemeryck.me/how-to-interface-with-your-cars-ecu-through-obd2-and-python/ How to interface with your car’s ECU through OBD2 and Python]<br> ====Arduino==== https://www.loveelectronics.co.uk/Tutorials/10/accelerometers-and-how-to-use-them<br> http://hackaday.com/2011/07/24/all-about-accelerometers/<br> ====Code==== Code to get GPS and render track<br /> https://github.com/martinohanlon/vidGPSOverlay<br /> http://www.stuffaboutcode.com/<br /> <pre> from PIL import Image, ImageFont, ImageDraw from RaspividController import * from GPSController import * import time import datetime DATAFRAME_WIDTH = 500 DATAFRAME_HEIGHT = 300 MAP_WIDTH = 300 MAP_HEIGHT = 300 MAX_SCALE = 1 FONT_PATH = "/usr/share/fonts/truetype/freefont/FreeMono.ttf" VIDEOTIME = 600000 def drawPoint(imagedraw,x,y,width,colour): imagedraw.ellipse((x-(width/2),y-(width/2),x+(width/2),y+(width/2)), colour) class DataDrawer(): def __init__(self, imagesFolder): #setup variables self.imagesFolder = imagesFolder self.imageSize = (300,300) self.minX = 99999999999 self.maxX = -99999999999 self.minY = 99999999999 self.maxY = -99999999999 self.lastFrameNo = 0 self.lastLat = 0 self.lastLon = 0 self.xyPositions = [] self.mapScale = 1 self.padX = 0 self.padY = 0 #load font self.font = ImageFont.truetype(FONT_PATH, 14) #create first frame self.newDataFrame(1, 0, 0 ,0) def newDataFrame(self, frameNo, speed, lat, lon): #check to make sure the frame has moved on since last time if frameNo > self.lastFrameNo: #create sumbolic links between last frame and this frame for missingFrameNo in range(self.lastFrameNo+1, frameNo): os.symlink(self.imagesFolder + "/" + "{0:06d}".format(self.lastFrameNo) + ".jpg", self.imagesFolder + "/" + "{0:06d}".format(missingFrameNo) + ".jpg") #create new image frame = Image.new("RGBA", (DATAFRAME_WIDTH, DATAFRAME_HEIGHT)) frameDraw = ImageDraw.Draw(frame) #data frameDraw.text((315,10)," Speed " + str(round(speed,2)),font=self.font) frameDraw.text((315,50)," Latitude " + str(lat),font=self.font) frameDraw.text((315,90),"Longitude " + str(lon),font=self.font) #map #only create map if we have a GPS fix if lat != 0 and lon != 0: #only add a new set of coords if the lat and lon have changed if self.lastLat != lat or self.lastLon != lon: #get x & y coords x,y = GpsUtils.latLongToXY(lat, lon) #print "x " + str(x) #print "y " + str(y) #add x,y to list self.xyPositions.append([x,y]) #update mins and maxs if x < self.minX: self.minX = x if x > self.maxX: self.maxX = x if y < self.minY: self.minY = y if y > self.maxY: self.maxY = y #persist lat and lon self.lastLat = lat self.lastLon = lon #calculate scale diffX = self.maxX - self.minX #print "diffX " + str(diffX) diffY = self.maxY - self.minY #print "diffY " + str(diffY) if diffX > diffY: if diffX != 0: self.mapScale = MAP_WIDTH / float(diffX) else: self.mapScale = 1 else: if diffY != 0: self.mapScale = MAP_HEIGHT / float(diffY) else: self.mapScale = 1 #print "mapScale " + str(self.mapScale) #set max scale if self.mapScale > MAX_SCALE: self.mapScale = MAX_SCALE #re-calculate padding self.padX = int((MAP_WIDTH - (diffX * self.mapScale)) / 2) self.padY = int((MAP_HEIGHT - (diffY * self.mapScale)) / 2) #draw lines for position in range(1, len(self.xyPositions)): #draw line between previous position and this one x1 = self.padX + abs((self.xyPositions[position-1][0] * self.mapScale) - (self.minX * self.mapScale)) y1 = self.padY + abs((self.xyPositions[position-1][1] * self.mapScale) - (self.maxY * self.mapScale)) x2 = self.padX + abs((self.xyPositions[position][0] * self.mapScale) - (self.minX * self.mapScale)) y2 = self.padY + abs((self.xyPositions[position][1] * self.mapScale) - (self.maxY * self.mapScale)) #print "coords - " + str(x1) + " " + str(y1) + " " + str(x2) + " " + str(y2) frameDraw.line((x1, y1, x2, y2), fill="white", width=3) #draw start and end point if len(self.xyPositions) > 1: # start drawPoint(frameDraw, self.padX + abs((self.xyPositions[0][0] * self.mapScale) - (self.minX * self.mapScale)),self.padY + abs((self.xyPositions[0][1] * self.mapScale) - (self.maxY * self.mapScale)), 10, "red") # end drawPoint(frameDraw, self.padX + abs((self.xyPositions[len(self.xyPositions)-1][0] * self.mapScale) - (self.minX * self.mapScale)), self.padY + abs((self.xyPositions[len(self.xyPositions)-1][1] * self.mapScale) - (self.maxY * self.mapScale)), 10, "green") #save image frame.save(self.imagesFolder + "/" + "{0:06d}".format(frameNo) + ".jpg", "JPEG") #update last frame self.lastFrameNo = frameNo # main program if __name__ == "__main__": try: #create data folder localtime = datetime.datetime.now() foldername = "/home/pi/dev/cbb/vidGPSOverlay/data/" + str(localtime.year) + str(localtime.month) + str(localtime.day) + str(localtime.hour) + str(localtime.minute) + str(localtime.second) if not os.path.exists(foldername): os.makedirs(foldername) #start raspivid print "starting raspivid controller" vidcontrol = RaspiVidController(foldername+"/vid.h264", VIDEOTIME, False, ["-fps", "25", "-vf", "-hf"]) vidcontrol.start() #start gps controller print "starting gps contoller" gpscontrol = GpsController() gpscontrol.start() #wait for controllers to startup and gps fix time.sleep(3) #create data file datafile = open(foldername+"/data.csv", "w") #create datadrawer object datadrawer = DataDrawer(foldername) #loop while(vidcontrol.isAlive()): #get framecount framecount = vidcontrol.getFrameCount() #wait for a bit as the gps data is a little behind + it allows the processor to have a rest! time.sleep(0.1) #get gps data lat = gpscontrol.fix.latitude lon = gpscontrol.fix.longitude utc = gpscontrol.utc speed = gpscontrol.fix.speed speedMPH = speed * GpsUtils.MPS_TO_MPH #write data dataString = str(framecount) + "," + str(speedMPH) + "," + str(lat) + "," + str(lon) + "," + "\n" datafile.write(dataString) datadrawer.newDataFrame(int(framecount), speedMPH, lat, lon) except KeyboardInterrupt: print "Cancelled" except: print "Unexpected error:", sys.exc_info()[0], sys.exc_info()[1] raise finally: #shutdown raspivid vidcontrol.stopController() vidcontrol.join() print "stopped raspivid controllder" #shutdown gps controller gpscontrol.stopController() gpscontrol.join() print "stopped gps controllder" #close data file print "closing data file" datafile.close() </pre> ---- Back to [[Neon]]

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