LA Arduino Monthly Meetup

Let's get together to have talks, discussions and share our experiences with Arduino.


For this time we are going to have:

Leslie Brothers: presenting one of her projects called "Peepers".

"Peepers are shy creatures that poke their heads up cautiously when no one is near, but quickly duck back down when someone approaches.

A Maxbotics ultrasound distance sensor detects proximity, while smallservos with pulleys and springs move the creatures in response."


Typer Calderone: talking about a "Daft Punk Helment" that he is building.

"A custom PCB manufactured for this project. Each PCB has 56 LEDs on it, with 8 more outputs tied to a series of 4 LEDs (strips), for a total of 176 LEDs (two sides/PCBs). Each PCB is controlled via a max7219 7-segment display driver, which is in turn controlled by a single Arduino. The Arduino gets input from a mic, which I break down to read the spectrum of sound, to display on the 7x8 LED matrix, per PCB, while "scrolling" the 8 strips. Not completely done yet, but most of it's working."

Video / Demo:


Harrington Joseph: explaining his current project, "A Robotic Arm".



We are still having room for more talks.


Formal Talks

30 minutes to 1 hour+ presentations and/or demos about topics, ideas or projects, Arduino related.

Lightning Talks

5 to 15 minutes of Arduino related topics. Screens or demos are not required, just come up to the front and share your project, ideas, experience, thoughts, etc.

If you would like to present, please send me a message with your topic.


There is underground parking below the facility. It's $6 to park there. You can also park around Main st.

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  • Jorge G.

    Hello everyone, I just received my bluetooth module for the Arduino and I was able to wire it and have the Mac pair with it without a problem :)

    I would like send/receive data from the Mac to the Arduino using the BT module. I tried PyBluez and LightBlue, but neither one installed properly on the Mac.

    Does anyone know of a python module (or any other language) that I could use to send/receive data from the Mac to the Arduino using bluetooth?

    Below is the link the the BT module I bought:

    1 · May 8, 2013

    • James M.

      If you have them paired already, does that mean you can send programs to the arduino from the Arduino IDE environment, over Bluetooth? If so then I would try using the same methodology in "run time" mode. I.E., try to open and receive data on that COM port. Make sure that your boad rates match. You can use "serial monitor" (Cntl-Shift-M) to test. and the Serial.write() command in your arduino program. I have not tried this myself yet. My Bluetooth Xbee was lost in the mail. :-< But I hope that this helps.

      May 9, 2013

    • Jorge G.

      Thanks for your response, James! The BT module is paired through "/dev/tty.linvor-De­vB" on my Mac and when I point the IDE to that port and match the bauds, I get nothing on the IDE monitor. I'm using the corresponding Arduino sketch from: http://stackoverflow....­

      May 9, 2013

  • James M.

    This was a great meet up. There were many advanced arduino designers, friendly and will to share EVERYTHING about how they created their impressive projects.

    1 · May 8, 2013

  • Jorge G.

    Hello everyone, last night I ordered the following items from to start experimenting with my surveillance project. I may have questions when I receive the parts :)

    1 x TMP36 - Analog Temp sensor (TMP36) [ID:165] = $2.00
    1 x Weatherproof TTL Serial JPEG Camera with NTSC Video and IR LEDs[ID:613]
    = $[masked] x DHT22 temp-humidity sensor + extras[ID:385] = $[masked] x IR distance sensor includes cable (10cm-80cm) (GP2Y0A21YK0F) [ID:164] =
    $[masked] x Adafruit Ultimate GPS Breakout - 66 channel w/10 Hz updates (Version 3)
    [ID:746] = $[masked] x Maxbotix Ultrasonic Rangefinder - LV-EZ1 (LV-EZ1) [ID:172] = $[masked] x Micro servo[ID:169] = $5.95
    1 x Micro Servo - High Torque Metal Gear[ID:1143] = $9.95
    1 x Laser Diode - 5mW 650nm Red[ID:1054] = $5.95
    1 x Electret Mic Amplifier - MAX4466 with Adjustable Gain[ID:1063] =
    1 x TSL2561 digital luminosity / lux / light sensor[ID:439] = $7.95
    1 x IR sensor (TSOP38238) [ID:157] = $1.95

    April 27, 2013

  • Tyler C.

    Hey there again, just posted an article on my blog about my project, which includes some of the pictures and videos I presented, as well as the presentation itself. Feel free to comment and share, but note: it's my first post on my newly made blog, so there may be some errors with it. Otherwise, enjoy!

    April 26, 2013

  • Tyler C.

    Hey all, had a great time. Tons of brilliant people.

    As promised, here's a link to the GitHub page with my code:

    The chip I used is a max7219cng (, the mic I'm using is a max4466 (

    My powerpoint is available here: [COMING SOON]

    And lastly, my custom manufactured PCBs were created using and manufactured through

    1 · April 26, 2013

    • Jorge G.

      Thanks for sharing, Tyler!

      April 26, 2013

  • Harrington J.

    Amazing. It was such a great night. Awesome projects and an environment full of cool people

    1 · April 26, 2013

  • brian m.

    Hey folks, here are some links I refereed to in conversations:
    robot frame parts and heavy duty servos
    Apex Surplus metals -part wonderland (you will need this address, google gets confused)
    8909 San Fernando Rd Sun Valley, CA 91352
    MIT professor advice on building things:
    battle bot high end robot site:
    High end robotic parts:

    2 · April 25, 2013

    • A former member
      A former member

      thanks brian.

      April 26, 2013

    • Harrington J.

      Great Brian, thanks for the info

      April 26, 2013

  • Patrick C.

    my first Meetup and I had a great time. Thanks everyone

    2 · April 26, 2013

  • A former member
    A former member

    the meeting was awesome. thanks everyone.

    1 · April 26, 2013

  • A former member
    A former member

    Thanks for the great time guys. Very excited to be part of this group.

    1 · April 26, 2013

  • Jorge G.

    I had a great time at the Meetup! Very impressive projects. Thank you all for sharing and taking the time to answer my newbie questions :)

    1 · April 25, 2013

  • Ralf Q.

    Had to take a sick day and won't be able to make it down there today.

    April 25, 2013

  • Ralf Q.

    Not 100% sure depending on my work schedule but I am really interested getting more into micro-controller programming again

    April 23, 2013

  • Julian S.

    strong maybe

    April 21, 2013

  • tOoLb0x

    15+ years in IT network security. Been toying around with basic electronics the past few years and Arduinos have been in the mix.

    April 11, 2013

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