specs

made a visio document for the specs of our hardware. link to spec sheet Linnked File test 2 AA batteries making 3V to power DC motor and lauch car from ground

H-bridge Power

Tonight we found out the h-bridge does not have enough power to power to the d/c motor when there is any kind of friction like the ground. We are going to investigate this farther. When the wheel is in the air week get 3+V going to DC motor. When on ground in the beginning there at 150mV. We connected a 9v battery directly to the d/c motor and the car moved instantaneously. We test the other h-bridge again. It was lacking voltage power to drive the motor as well. We know it is power issue with the h-bridge. Our h-bridge powers our 3 sensors as well. We disconnect them hoping it would have an impact. Test failed, still could not move in the beginning by itself.

Right L turn

fixed battery charger.

started to program a pathfing algorithm.
ping sensors report distances in inches from left and right. so i was attempting to program if it recieves a signal closer to the left side the car would move right. if the car recieved s signal closer on the right side it would move left. 

need to figure out how to change speed, because its picks up speed fast.  front left sensor need to be screw back on. fell off when test code. 

was able to write code to recieve distances from all 3 parallax ping sensors to display in terminal. worked on presentation. 

need to figure out how to get car to go in reverse. wanted to test other h-bridge because i thought my code should run properly.  however when i plug the spare h-bridge up. i switch 2 cables and it fried the board.  Also, the end came off the battery charger so i need to fix that as well.

testing

able to test some code on the car tonight.
all compants are working as they should. everything is wired up correctly.
able to get code to read input distances from sensors and report them on a consol on my laptop for testing perposes.
code i wrote tonight goes in a circle clockwise one rotation and then heads in a straight line, then a shallow left turn. then repeats.

Velcro for sensor mount

sensor mount

Center sensor (3 pin parallax)

Right + Center sensor

Right + Center + Left

3 pin parallax ultrasonic sensor

 Base car + Sensors

Car w/o body

Car + Arduino

 Car + Arduino box cover

Car + Arduino box cut out for wires

Arduino box with spacers

lexan mounted to Arduino box spacers,

breadboard on lexan, 

4 spacer on lexan for h-bridge 

2 spacer on right for switch pannel

H-bridge mounted

switch pannel mounted

rear DC motor connected to MOT1 on H-Bridge,

Switch 1 connected to H-bridge and 9.6 battery,

Switch to 2 connected to Arduino and 9V battery

H-bridge wired to Arduino,

Arduino out 5volt power to breadboard to power servo + Sensors, 

Steering servo wired to Arduino through breadboard,

3 ping sensors wired to Arduino through breadboard

Rear spoiler added for looks!

Car conversion complete, and ready for code.

Note:

Should have one more quick disconnect between DC motor and H-bridge and stronger velcro to hold Arduino box