Thursday, Jan 10th, 2013

Join us for the Fire and Ice benefit on January 19th.  This promises to be an excellent party.

* Chili competition - up to 25 kinds of chili to taste and vote for.

* Silent Auction - unusual gifts and treasures for uncommon people.

Fire and Ice Costume Constest: Come to Fire and Ice dressed in your finest Fire and Ice inspired costume attire. Prizes will be awarded based on votes that you earn from other event attendees.

*Demonstrations of liquid nitrogen, static electricity and others. 

Monday, Dec 10th, 2012

Beginner Arduino Workshop Continues Sunday Dec 23
Learn the basics of Arduino an amazing open source electronics prototyping platform
Class Dates:
December 23 - Class 2 Digital and Analog pins, Pull up resistors, Variable Resistors, Blinking LEDs

January 6      - Class 3 Controlling Motors, Stepper Motors and Servos, Ping Sensors, and IR Sensors

January 13    - Class 4 Communication with Arduino - Serial, Bluetooth, Xbee, LCD Displays
Each class will have a Technical Learning session for about 1 hr followed by a hands on work session for 1 to 2 hrs.
Please bring the following for the hands on session.
1. Arduino (UNO, Leonardo or other flavor) 
2. LEDs assorted
3. Shields (optional but they make life easy.  We will discuss more in the first class)
4. Sensors, Xbee, Bluetooth, LCD display (Optional there will be some to play with during class)
All Arduino supplies can be purchased online at 
Locally at Microcenter or Radioshack.
Saturday, Dec 1st, 2012

Our third weather balloon had GPS failure shortly after launch.  Hopefully, someone will be kind enough to call the number on the payload.  Everyone cross your fingers in hope we get everything back!

Tuesday, Nov 20th, 2012

This is so awesome. Derek Sigler's project, which included a team at Arch Reactor, sent a balloon today to 100,000 ft with a few cameras and were able to locate the payload when it came back down. This is a picture he posted from 97,000 feet above the earth. This is very inspiring. It has been such a good day. Congratulations Derek and the team that launched it!!! Very impressive.

Video of the balloon burst, 42 seconds in,  is available here.

Tuesday, Nov 6th, 2012

Sunday November 4th we had the first Arduino for Artists class.  The class was well attended.  Derek covered many of the basics and demonstrated the versatility the Arduino platform provides.  The last hour of the session was turned into a working session where individuals were free to persue their own Arduino projects and get troubleshooting advice.  The link below is a Google Docs presentation from the beginning of the class.  Join us next Sunday for the second class in the series "Arduino for Artists".

Sunday November 11th we will have the second session.  If you can't make it in person join the G+ hangout!



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Upcoming Events


  1. BoardGame Night * ArchReactor
    • Start time: 12:00pm
    • End time: 11:30pm
    • Where: 2215 Scott Ave, St. Louis, MO 63103, USA
    • Come On Out and Play games With us. If you don't know games that's OK we are friendly and love to teach. If you do, bring your Favorites along and let get a Game in.

      We'll have Food there, and I'll happily take 5$ in exchange for letting you eat all day.

      We start at Noonish and Play until you Leave or after Midnight, whichever comes last. :)

    • View this event in Google Calendar


  1. Hack Something!

Tuesday, October 25th

  1. Rob Presents Aquaponics

Thursday, October 27th

  1. Laser Workshop Night
    • Start time: 07:00pm
    • End time: 08:00pm
    • Where: 2215 Scott Ave, St. Louis, MO 63103, USA
    • Feel free to come by to learn how to use the laser cutter, talk about laser cutters, work on laser cutter projects, etc!

      Contact Person: Travis

    • View this event in Google Calendar
  2. Scott's Dry Run for Silicone Mold Casting

Sunday, October 30th

  1. Hack Something!

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Come check out the space at one of our regular Tuesday meetings or Sunday hack nights, year-round. Tuesday and Sunday events are always open to the public, and generally begin around 7:30 pm.

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About Our Hackerspace

Arch Reactor was founded in 2009 by a group of friends who liked technology, programming, making, and pizza. Now St. Louis' largest hackerspace, Arch Reactor's growing membership continues to bring new skills, projects, equipment, and people to one place.

For a deeper understanding of what we're about, you should check out our explanation of hackerspaces, perhaps read about one of our members' projects, or (best of all) come meet us in person at the next open event!

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