Skip to main content

packaging

I've spent some time trying to figure out how to solve the 3-state problem mentioned in the end of the last post about this project,

but I haven't been able to find a solution I can use right away.

I do think the practical solution would be a "wind sensor," a primitive anemometer that would simply just distinguish between no blowing and blowing ("wind").

I would suppose a fan-like sensor would pick up the wind (in a way, a very miniature version of this).


Anyways, I'm thinking that this project should be packaged in some way for presentation sake,

and I'm guessing it could be something like this:



Of course, the contents would be inside the box, and cut-outs made to make the visible parts visible.

Note that the servo can actually work as a lock with this layout.


In order to do this, though, it will be great to have a ruler/cutting knife and someone who can use them well.


Labels:

Comments

Post a Comment

Popular posts from this blog

GPIO testing

Since the environment of the client-server-target is currently quite functional in the messaging standpoint, I decided to try connecting a simple LED light to the Raspberry Pi to see if it could "open" a door when the command is received. Installed the RPi.GPIO module (a Python module that gives the user command of the GPIO--General-Purpose Input/Output--ports in the Raspberry Pi) and connected the LED light to a GPIO pin. When the target received a request message, it would signal the GPIO pin to drive a current to the LED to light it up for 2 seconds. in main: if __name__ == "__main__":   GPIO.setmode(GPIO.BCM)   GPIO.setup(17, GPIO.OUT) in the on_message's request-received logic:      GPIO.output(17, True)      time.sleep(2)      GPIO.output(17, False) The video is a weak visual result. You can a click when the LED lights up; that was the sound of the key being pressed that sent the request message. Now, tim...
Post a Comment
Read more

setting up pwm

There's always an obstacle.. I implemented the pwm module as described in the link in the previous post, but oddly enough, it didn't work. The error I received: AttributeError: 'module' object has no attribute 'PWM' After some time scratching my head, I came to the realization that somehow my python was running an older version of the RPi.GPIO library, as PWM control was a pretty recent addition to the library.  And indeed it was.  Not really sure what's happening in detail, but it seems that there are two different... entities? that manage libraries for Python. One is through the usual "apt-get" command and the other is "pip." It appears that Python looks at "pip" first, and it currently linked RPi.GPIO to a really old version of the library.  Uninstalling that older version ("pip uninstall RPi.GPIO") and using the version I obtained through apt-get ("apt-get install python-rpi.gpio...
Post a Comment
Read more

pwm..

I just realized that the RPi.GPIO library (for programming the Raspberry Pi's input/output) already has PWM control, giving me a much more efficient control of duty cycles... At least the previous exercise ("duty cycle testing") refreshed me on it. PWM control on RPi.GPIO: http://code.google.com/p/raspberry-gpio-python/wiki/PWM
Post a Comment
Read more