Hello. Currently as of a recent project I'm working on, I will need to obtain the L298N H-Bridge Motor Driver Shield. One question that I am concerned with; is it possible so that when an ultrasonic sensor on the EZ-Board detects an obstacle in the way, will the H-Bridge allow pager vibrating motors to vibrate and stop when there is no objects detected through the ultrasonic sensor? Thanks.~RoboticsMaster
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So technically, you can do anything!
I am fascinated by the concept. Are you working on something for personal navigation in the dark or some kind of assistive tech for the blind?
Then it's a case of using EZ-Script to GetPing, check it and Set the digital port to on for however long required, or pulse it or whatever. Should be very simple to do.
I would also recommend using a simple TIP Switching Transistor, see Rich's informative post: http://www.ez-robot.com/Community/Forum/posts.aspx?threadId=3050
And the EZ-Script would be something like this...
Ping Trigger and Echo connected to d0, and d1. TIP/Pager Motor connected to d2
You also need to consider edge detection, and other than Lidar or really good video interpretation I don't have a good recommendation for that. The cane is used to detect the edge of stairs, sidewalks and train platforms as much as obstacles.
In the television program Covert Affairs, there is a blind character who uses a (purely fictional) handheld laser device instead of a cane. I could easily see something like that being used with sonar or ir sensors for better situational awareness. Have the vibration patterns change based on distance to the object pointed at rather than just on/off. if you build and patent this, I just want name credit. You can make all the money