#connected-devices

[sxpxrmxrgxr]

[henryiswhy]

Solar powered website — the updated final project idea.

I was think about building a solar power website since working on the solar project for energy class. I was give up on this idea because I don’t know what kind of content I want to put into the site. I would like back to this idea because I would like have the basic functionality running before graduation. So I can keep working on the digital content part later after my ITP study.

I knew the idea of solar powered website since one of the reading week at Tech&Society club.

LOW←TECH MAGAZINE

Low-tech Magazine refuses to assume that every problem has a high-tech solution. A simple, sensible, but nevertheless controversial message;

I also found https://wp.nyu.edu/solarpoweredmedia/ that semester. I think build a server with Raspberry Pi, and use solar panel to power the server.

GitHub - alexnathanson/solarserver

Contribute to alexnathanson/solarserver development by creating an account on GitHub.

This github page seems have a good documentationo and interaction about how to setup the solar server.

[henryiswhy]

Connect devices final project plan

What: I want to make a wearable device (solar wing) that other people can control part of it though log in to the website. The wearable will have feedback based on the solar power, and the data received from the viewers. And the viewers will each act as a digital moths/butterflies on their device.

Why: During school times, I spent so much time neither at ITP, or at home. I haven’t experience outside environment that much. I want to use this device let me go outside and enjoy the sun. And since anyone can join the website, this can be a way I talk with strangers.

How: I will use solar panel to power the speaker and the GPS Module Receiver, and send those data to the webhost. And the gps data will be how the moths/butterflies flys in the website, and the viewer can control the moth by ”wasd” or drag their phone. And those drags will sent back to the solar wing, and the speaker will tell me how to move.

I ‘m create two dynamic maps for both the physical and digital devices.

Question I have: Because it’s live experience, it seems like I should websocket for the experience ? I still not sure what data I should send and receive for both object...

[henryiswhy]

Week 6 Device-to-Device project concept

When I think about the topic we cover in this class, I think about network ecosystems, data, information, interface and surveillance. I am always into those topics. And I think make a device to device project about surveillance and interface sounds cool for myself.

I went office hour with Shawn and we think those words are very big, I need to start with things more detailed. And he said think about recommendation system might be a good start.

Later I was looking at some art projects about surveillance.

SOMEONE — Lauren Lee McCarthy

SOMEONE SOMEONE imagines a human version of Amazon Alexa, a smart home intelligence for people in their own homes. For a two month period in

MICHAEL CANDY BLOG // ABOUT PERSISTENCE OF VISION 2021 Persistence of Vision (POV) is an AI enabled interactive network of spotlights...

I think I would like do something about camera, machine learning(computer vision), and network system.

I am familiar with the computer vision part, but not so sure about how network system will be part of this project.

I know it's still a blurry, and it's due in one week. But I will have a prototype by next week and keep working it after midterm.

Here is a video about the HID device to mobile phone that Yontan and I worked on last week. Yes, it's working now!

Thanks Tom :)

[henryiswhy]

Week 3 - HID-based Game Controller

So for this week, I do have a real world setting for the HID device that I'm trying to made.

I submitted a olde artwork to a show. And the curator want to change the mouse based interaction to all the buttons. She was thinking so that user can push those buttons at the wall.

First, I built all 5 buttons to control the top, down, left, right, and left-click for the mouse.

Based on the Button Mouse Control code on arduino's office website (which Tom wrote 10 years ago)

Control cursor movement with 5 pushbuttons.

I had the button based mouse working well.

And my friend Jason Gao saw this homework, decide use his solderable perf board make one just for fun.

Later, I found I do have joystick in my toolkit. And I added it to the project. The only problem I had with joystick is that the click is not working well.

I started my jostick with https://itp.nyu.edu/physcomp/labs/lab-mouse-control-with-joystick/ this code. To make sure it's working.

Than, I used this example code

hid-examples/MouseJoystick.ino at main · tigoe/hid-examples

Examples for programming an Arduino to be a mouse, keyboard, or other Human Interface Device - hid-examples/MouseJoystick.ino at main · tigo

I started with this code, and for the press logic, I used

if (clickState == LOW ) {

// if the mouse is not pressed, press it:

if (!Mouse.isPressed(MOUSE_LEFT)) {

Mouse.press(MOUSE_LEFT);

}

}

// else the mouse button is not pressed:

else {

// if the mouse is pressed, release it:

if (Mouse.isPressed(MOUSE_LEFT)) {

Mouse.release(MOUSE_LEFT);

}

}

if the clickState is High, it will keep pressing, and if the press is LOW, the click will have no behavior .

Another question: based on this video, if I want to add it as each station with one button, so it will have about 18 buttons, how would I do it with those Arduino pins?

Later, I combine the basic button code and the joystick code together. Here is the final demo video.

[blogging-from-itp]

[cont.] Philips Hue hub - Interface for Connected Device

8. Code reference: Arduino HTTP client & HTTP client Get JSON.

[Not resolved] What is the use case of the SPI library?

Circuit:

When I ran the Arduino code, posted here, this is how the command line worked.

...The errors happened and then the serial monitor went blank.

9. I tried the JSON code before going back to the previous code. Now I have a new error. My Arduino stops responding and I have to reset every time I upload the code. Not sure why.

10. Skipping any debugging with the previous code, I got back to the previous code. I had Alvaro helped me understand the code line by line. Following are some snapshots of debugging and updating the code.

I will do a comparison of the old with the new code. Here is all that I updated:

mappedValue = map (sensorValue,0,1023,0,60000);  1023 is the potentiometer range 60,000 is an arbitrary number for the bulb

lightState["hue"] = mappedValue;

And that’s it! The last image is a screenshot of the serial monitor when the bulb changed its hue.

11. Glitches: It takes a while for the hue to get updated. Based on feedback so far it seems that the server is getting jammed with the data.

12. Debugging: I introduced an if statement.

It basically says that if the potentiometer knob is rotated more or less than 50 compared to the old value/reading, then update the bulb. But as you notice in the image above, data is sent even though I haven’t touched the knob at all in the beginning.

13. So I introduced another if loop, as recommended by Jason, to check the sent request.

As you notice in the above code, there are 3 iterations. In the final iteration, I introduced two things. First, to reduce sensitivity, don’t update the hue until the request is more/less than 50 wrt the existing code. Second, don’t keep sending data.

[blogging-from-itp]

Philips Hue hub - Interface for Connected Device

CONNECTING WITH THE HUB

1. I started with this guide. I realized that this is the part that Tom had already demoed in the class including this link.

2. But that’s when I realized that I have to connect to the device first. 

3. Below is the screenshot that shows the success of msg and user key.

It took some formatting to make it work including space and putting the right IP address of the hub but then I reached another bump.

OPERATING THE BULB

4. I am guessing that I haven’t read the documentation well, but it shows an error about the hue parameter which I am yet to debug.

5. So I am now trying to new by using the debug:

But this is not working either. As you notice in the Command Response, there are no messages.

Links that are useful:

https://developers.meethue.com/develop/hue-api/lights-api/

[Cont. in later posts with same title]