Archive for the Sea Category

Robot fish

Posted in Arduino, Prototyping, Sea on September 18, 2013 by asteriondaedalus

robo fish

 

Go figure you don’t have a realistic “fish” thing going to build a robotic fish.

With the $10 second hand handycam dive enclosure we have a body.

sony cam

 

Now I was saving pennies for waterproof servos to see if they would paddle this along.

Then I noticed cheap (really cheap) camera gimbal drivers and brushless motors.  Brushless motors, in principle, can work underwater (plenty of examples on you tube) so I thought why not gimbal motors which work like servo motors.  I will have to re-code the driver but it will be to take the IMU code and replace it with sinusoidal drivers to “undulate” the tail.

gimbal driverI bought 4 $13 motors to try the idea out.

 

NEWS SPLASH!

Posted in Air, Android, Arduino, Ground, Hardware, Sea, Sensing on March 19, 2013 by asteriondaedalus

Waterproof mobile phones available between $70 single core and $140 dual core. POSTSCRIPT Read later article.

water proof phone

Android 2 odd on the single cores and Android 4 odd on the dual cores.

This will compliment the waterproof servos I have ordered for the Rock Crawler:

hitec-waterproof-servo-large

Or the waterproof brushless motor and esc:

trac3349_550

(*pist* normal brushless motors can run under water BUT may need to do things to them to make them last longer)

So a bluetooth module on one serial port of the:

31138

And an XBee/Snap on the other serial port and viola, Perfect waterproof system … well once I sort out how to waterproof the little board above.

Still, for projects that don’t need the sensors and only want to drive servos or ESC then a bluetooth XBee module on the:

1-340x340

So many possibilities and you can mix and match without pesky wires.