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Building your first autonomous vehicle: Part 2

We'll build on what we started in January and look at adding a sonar sensor to detect and avoid obstacles.

More details to follow.

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  • paxelrod

    I plan on attending tonight. I've made some progress. When I plug in the last of the wires based on last month's wiring diagram, my Netduino lights up so I believe the circuit is complete. But without the software being installed (still getting the vague error when I attempt to open the solution even though I'm using VS 2010 Pro) it doesn't move around. Won't have the sonar sensor until April 1. I opted for a cheaper one and they are very slow on the delivery but based on the latest wiring diagram, attaching the sensor should be easy. See all tonight.

    March 18, 2014

    • Randy P.

      Bring it tonight and we'll try and figure it out. I'll have a couple of extra sensors if you want to try and get the sensor working tonight.

      March 18, 2014

  • Randy P.

    Bring your vehicles from last month, sensors and questions. I'll have some extra parts if you need anything.

    March 17, 2014

  • Randy P.

    Uploaded a new wiring diagram for connecting the HC-SR04 Distance Sensor and source code that includes the driver for the sensor. Have fun! http://fritzing.org/projects/netduino-autonomous-vehicle-with-sonar

    March 13, 2014

  • Matt O.

    Fyi. I just found 4 of the sonar chips for a total of $0.04 plus like $4 shipping on amazon.

    February 18, 2014

    • Randy P.

      Nice Price! Can you provide a link?

      February 19, 2014

    • Matt O.

      The seller pulled it a few minutes after I placed the order... they said that they made a mistake with the price. Still, they were $1.50 each, so I can't complain too much.

      http://www.amazon.com...­

      February 19, 2014

  • Randy P.

    Kevin also recommended getting a "HC-SR04 bracket" to easily mount the sensor to your vehicle.

    February 15, 2014

  • Randy P.

    For Part II - Purchase the HC-SR04 Ultrasonic Distance Measuring Sensor. We'll use this to detect and maneuver around obstacles.

    Search on Amazon or EBay for "HC-SR04", you should be able to pick one up for < $5.00.

    February 15, 2014

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