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Kehillah Student page: Engineering Course

Weekly update table



Resource for your slides preparation for this week:Slides

Project Work this week
and material added to page.
Concerns, hurdles
Light Follower
Sanjay Raj
Updated: Apr-13-2018
  • Action Plan
  • Concerns:



    Arcade
    Nathan F Nathan L
    Updated: Apr-13-2018
  • Action Plan
  • Inital Presentation
  • Concerns:

    ensuring that all of the components work without fail. I.e The monitor does not come loose from the arcade box or the buttons not having the correct input when playing games.

    Doorbell 1
    Benny
    Updated: Apr-13-2018 Slides

    worked more on debugging, finished debugging

    Concerns: reciever/transmitter problems

    DoorBell 2 (Ariel)
    Ariel
    Updated: Apr-13-2018
  • Slides update.
  • Original slides.
  • Concerns:


  • Still unsure if the problem lies within code and debuggable parts or the transmitters/encoders which we can not debug.
  • FM Transmitter
    Zack, Jake
    Updated: Apr-13-2018

    Concerns:



    Go Kart
    Ben Yeffet
    Jeffrey Robinson-Wrobel
    Jason Flaster
    Jake Cimring
    Updated: Apr-13-2018

    Updates:

    Concerns:

    • The seat back has fallen off and we do not yet have a replacement
    • We are still unsure of the power of the motor. It may not be enough to move the kart.


    ======



    Past weeks updates

    Project Work this week
    and material added to page.
    Concerns, hurdles
    Light Follower
    Sanjay Raj
    Updated: Mar-23-2018
  • All the photoresistors appear to be reading light levels. The sensors appeared to programmed with the arduino.
  • Now, I need to program the sensors with the servo motors.
  • Concerns:



  • I am concerned that I may need a new LED, as it isn't always lighting up.
  • Dr. Baharav comment: Will you make the March-30th milestone? If not, what is expected status?
    Arcade
    Nathan F Nathan L
    Updated: Mar-23-2018
  • Cut out wood for case
  • We need to build the case
  • Concerns:


  • Splitting the wood

  • Dr. Baharav comment: Will you make the March-30th milestone? If not, what is expected status?

    Yes, we are ahead of schudule for building our box and laying out where we would like to put the pieces. We intend on having the box built before the end of the month.

    Doorbell 1
    Benny
    Updated: Mar-23-2018

    continued work on doorbell, 80% done

    off track on deadline, will need a bit more time to connect everything and test

    Concerns:

    nothing currently



    Dr. Baharav comment: Will you make the March-30th milestone? If not, what is expected status?
    DoorBell 2 (Ariel)
    Ariel
    Updated: Mar-23-2018
  • Succesfully finished building of doorbell
  • Far ahead of the March 30th deadline
  • Issues with actual using of the doorbell, currently debugging
  • Concerns:

  • I have no idea where my issue lies, and have to systematically go through everything


  • Dr. Baharav comment: Will you make the March-30th milestone? If not, what is expected status?
    FM Transmitter
    Zack, Jake
    Updated: Mar-23-2018

    Concerns:



    Dr. Baharav comment: Will you make the March-30th milestone? If not, what is expected status?
    Go Kart
    Ben Yeffet
    Jeffrey Robinson-Wrobel
    Jason Flaster
    Jake Cimring
    Updated: Mar-23-2018

    Updates:

    • Preliminary design for the motor and the back (and some "bloopers"!)

    Concerns:

    • The seat back has fallen off
    • We need to find some more parts and maybe redesign the back


    Dr. Baharav comment: Will you make the March-30th milestone? If not, what is expected status?


    ========



    Project Work this week
    and material added to page.
    Concerns, hurdles
    Light Follower
    Sanjay Raj
    Updated: Feb-23-2018
  • I have one photoresistor giving continuos reading of the light level. I did this using Serial.print() command.
  • Now I need to connect all 4 photoresistors so I can proceed.
  • Here is a screenshot of one photoresistor giving continous reading of the light level.
  • Concerns:


    =====

    Dr. Baharav comment: Goal is to have the photoresistor give reliable reading of light/dark. By March-2nd let's have at least one photoresistor give a continous reading of light level. If this is too simple, we do need to have 4 photoresistors connected, so you can proceed to this. But at minimum we need a photoresistor reading which is reliable and consistent.
    Arcade
    Nathan F
    Nathan L
    Updated: Feb-23-2018
  • Corrected the Monitor Issue by using an older one
  • Uploaded Some Games to play with using a standard controller
  • In Process of mapping the controllers
  • Concerns:

  • Audio not being outputed correctly
  • Configuration of buttons works but is not always regonized

  • =====

    Dr. Baharav comment: I think you are moving along ok. Now you have the buttons.Well done so far!.
    Doorbell 1
    Benny
    Updated: Feb-23-2018

    waiting on parts, other steps have been completed besides one part, still on track

    Concerns:

    breaking another part again


    =====

    Dr. Baharav comment: On track!. See if you want a 3D printed case for the bell/reciever block.
    DoorBell 2 (Ariel)
    Ariel
    Updated: Feb-23-2018 On track, in Israel.

    Concerns:


    =====

    Dr. Baharav comment: On track, in Israel.
    FM Transmitter
    Zack, Jake
    Updated: Feb-23-2018

    We finished the breadboard radio, however we still could not receive a signal. We've ordered ceramic disk capacitors, which were included in the schematic we were basing our radio off of, and that may fix the problem. If that doesn't work, we'll try to measure the frequency it's broadcasting at using the osciloscope.

    Concerns:

    There is a chance our radio is broadcasting successfully but the signal is too weak to be received or is on a frequency most receivers can't tune to. We can most likely solve these problems, but it's hard to figure out what the issue actually is.


    =====

    Dr. Baharav comment: You are now doing the breadboard version. If this one deosn't work, we have a 30MHz scope (osciloscope) sitting in my room, on the floor, next to the window. This can be used to measure oscilation, voltage, current, etc. Let's try and debug the breadboard version before jumping on to on to a different design. On track
    Go Kart
    Ben Yeffet
    Jeffrey Robinson-Wrobel
    Jason Flaster
    Jake Cimring
    Updated: Feb-23-2018

    Updates:

    • Finished the back seat
    • Back Seat

    Concerns:

    • The steering loosens up over time. We aren't sure of a fix
    • We need to meet as a group of 4 and decide how to design the back

    =====

    Dr. Baharav comment: Let's make sure we are moving beyond the steering. We also have the motor, throttle, and drive-train to put in. By March-2nd let's have some mechanism to steer. Even if it is TWO handles that the driver pull/push directly on the front-wheel axel. This will enable part of the team to move forward to work on the motor, while others still try to get a better steering solution.




    Project Work this week
    and material added to page.
    Concerns, hurdles
    Light Follower
    Sanjay Raj
    Updated: Feb-09-2018
  • The light sensors will come next week.
  • Meanwhile, I am working on getting the pan and tilt moving more accurately.
  • Concerns:

    Arcade
    Nathan F
    Nathan L
    Updated: Feb-09-2018
    We are assembling the buttons and trying to get them to connect to the rasberry pi. We are still trying to make the monitor work with the games.

    Concerns:


    The monitor works in every mode accept for when we go into the games and instead of posting to the small monitor it goes to HDMI even when their is nothing connected.
    Doorbell 1
    Benny
    Updated: Feb-09-2018

    Concerns:

    DoorBell 2 (Ariel)
    Ariel
    Updated: Feb-09-2018
  • Fixed the design for the doorbell base. It is currently printing, and appears to be working fine. Once it is printed I will need to align it with my receiver base in order to see if it fits properly.
  • Looking into making a new pushbutton that will look cooler than the default, but other than a little searching, not much progress has been made.
  • Concerns:

    The reciever was completely broken, so I had to order a new one, this will set back the end date by a few days

    FM Transmitter
    Zack, Jake
    Updated: Feb-09-2018

    We're currently working on constructing a new radio using a breadboard to give us more control. We're getting close to completing and testing it, but we aren't quite there yet.

    Concerns:

    We weren't able to pick up the signal with our last attempt, and there's a chance we still won't be able to even using the breadboard. While it will be much easier to make adjustments to the broadcasting antenna, there is a chance we still won't be able to find the signal. We'll work on that issue if it comes up.

    Go Kart
    Ben Yeffet
    Jeffrey Robinson-Wrobel
    Jason Flaster
    Jake Cimring
    Updated: Feb-09-2018

    Updates:

    • We began constructing the steering:
    • There has been a major setback this week. Every time we built a new steering system, it would either break or not function properly.

      Here is an example of steering we made. This design has far too much slack and the turning of the wheels does not respond quickly enough to input from the steering shaft.

    Concerns:

    • Steering is proving much harder to make than we originally thought.

      We may not have this done in time for testing.



    ======

    Project Work this week
    and material added to page.
    Concerns, hurdles
    Light Follower
    Sanjay Raj
    Updated: Feb-02-2018

    Milestone update:

    I have the pan and tilt with the servo motors moving and rotating.
    Now I need to have it track the sun.


    Here is the link to the video:
    Link to video

    Concerns:

    Earlier, I had the servo rotate 360 degrees at once using servo.write(), and that was too much, so I was worried that one of the motors were broken as a result. I will learn to not do more than 180 for next time.
    Arcade
    Nathan F
    Nathan L
    Updated: Feb-02-2018

    Milestone update:

  • We reached our intial milestone of having the monitor boot to terminal and configuring retroarch to work with HDMI monitor
  • Configured a remote to work with the emulator
  • Got an old super mario bros game to work with an hdmi monitor
  • Milestones
  • Concerns:

  • small montior is not supported currently
  • emulationstation only works on larger monitor via hdmi
  • Doorbell 1
    Benny
    Updated: Feb-02-2018

    Milestone update:

    Milestone was to get all parts, almost have all parts, missing the reciever. Worked a bit on the board. Nothing should be different for end dates.

    Concerns:

    breaking a part

    DoorBell 2 (Ariel)
    Ariel
    Updated: Feb-02-2018

    Milestone update:

  • Finished building the Receiver for the signal. A schematic is on the site
  • I can't test the receiver yet, as I'm missing the parts for the transmitter
  • I created a sketchup of the base for the transmitter, and then converted it to an STL file which can be found on my personal site. I have not yet printed the base, and do not know yet whether it is the right size.
  • Concerns:

  • The parts for the Transmitter are taking far too long.
  • FM Transmitter
    Zack, Jake
    Updated: Feb-02-2018

    Milestone update:

    Completed construction of FM transmitter. We're having issues receiving the signal, and are attempting to debug.
    FM Radio

    Concerns:

    We may have incorrectly assembled the radio, but it's very hard to tell what the problem is. It may take a long time to debug. We're considering starting over and using a breadboard, which will be easier to control.
    Go Kart
    Ben Yeffet
    Jeffrey Robinson-Wrobel
    Jason Flaster
    Jake Cimring
    Updated: Feb-02-2018 Milestone Update:
    • We have decided to order the parts as needed
    • Everything we need is arriving and in good condition
    • Serious concern over getting the controller to work
    • We may have to first make the kart work without the controller

    ======
    Project Work this week
    and material added to page.
    Concerns, hurdles
    Light Follower
    Sanjay Raj
    Updated: Jan-26-2018
  • Still waiting for materials, I expect them to arrive on January 26, 2018.
  • Materials have officially arrived!
  • Link to page: https://ricardo.sequeira.com/pan-and-tilt-arduino

  • From Ricardo's website: Code, and images
    Arcade
    Nathan F
    Nathan L
    Updated: Jan-26-2018
  • Presentation
  • The video output format is not usually supported by retropi and we do not quite know how to fix the problems this is creating.

  • Getting the monitor to work without fail.
  • Doorbell 1
    Benny
    Updated: Jan-26-2018
    DoorBell 2 (Ariel)
    Ariel
    Updated: Jan-26-2018
  • Still waiting on a few materials.
  • Began working on prototype, see website for code and pictures
  • I made it so that pushing a button plays star wars... now to make it work from a distance
  • I succesfully embedded a video in my HTML
  • FM Transmitter
    Zack, Jake
    Updated: Jan-26-2018
    Go Kart
    Ben Yeffet
    Jeffrey Robinson-Wrobel
    Jason Flaster
    Jake Cimring
    Updated: Jan-26-2018
    • Constructed the first part of the steering
    • Steering Base
    • Combined 4 6v batteries in series to get 24v
    • Spun a test motor using the batteries
    • Motor and Batteries in Series
    • We may set up the controller wrong and break it
    • The motor may not arrive soon enough to test
    • There is a chance we short-circuit the batteries


    ======

    Project Work this week
    and material added to page.
    Concerns, hurdles
    Light Follower
    Sanjay Raj
    Updated: Jan-19-2018
  • Presented the project idea. link to slides, and am working on my personal page. I am still waiting for materials, but they should come soon.
  • Link to some video of the work?
  • Arcade
    Nathan F
    Nathan L
    Updated: Jan-19-2018
  • Google Slides
  • Having a working screen so that we can see the terminal
  • Begin working on the script to hook controllers
  • Doorbell 1
    Benny
    Updated: Jan-26-2018
  • obtained parts, physical component started
  • Not all physical components are there.
  • DoorBell 2 (Ariel)
    Ariel
    Updated: Jan-19-2018
  • presented the project idea.
  • link to slides.
  • began working on personal page.
  • Waiting for materials.
  • Slides
  • FM Transmitter
    Zack, Jake
    Updated: Jan-19-2018
  • Presented idea for FM radio transmitter. Link to presentation included.
  • Researching construction of FM transmitter. Compiling parts list.
  • Concept Presentation
  • Go Kart
    Ben Yeffet
    Jeffrey Robinson-Wrobel
    Jason Flaster
    Jake Cimring
    Updated: Jan-19-2018
    • None This Week!

    2017 2nd Semester projects

    1. Light Follower
    2. Arcade
    3. DoorBell 1 (Benny)
    4. DoorBell 2 (Ariel)
    5. FM Radio
    6. GoKart


    7. Shopping list


    =================

    2017 1st Semester projects

    1. Binary clock
    2. Line Follower
    3. Theremin
    4. Safe
    5. Signage
    6. Motors


    ==================================


    Questions/Comments: Zbaharav at Kehillah dot Org or Zachi at Baharav dot Org .