DuPage Engineers Week at IIT

02/28/2015 10:30

DuPage Engineers Week at IIT
Feb. 28, 2015 from 10:30 AM to 3:30 PM
Info: http://appliedtech.iit.edu/engineersweek


ChiBots January meeting

01/11/2015 13:00

Please join us for the ChiBots monthly meeting at the Schaumburg Library.

Dual Power Circuit for ProtoStation

I'm working on a new Prototyping station that will be both battery and DC powered.  I'm looking for ideas on how to build the circuit so that it switches cleanly between battery power and DC power as well as charge the NIMH batteries.

More info here - https://eddywright.wordpress.com/

Here is the circuit so far, I left off a lot of ancillary components like filtering and noise suppression for sake of legibility. I would love suggestions on improving this that anyone may have.

Voltage Regulation, Part 3 of 3

This last part presents some discussion aout voltage ripple.

The Output Ripple

The regulator is able to provide the required voltage as it is adjusted using the variable resistor, but sometimes the voltage is not as clean as it is needed. How much this affects the functionality of the circuit depends on the application. In some cases the unclean voltage has no effect, but in others it can wreak havoc and create a scenario that is difficult to troubleshoot.

SRS RoboMagellan Demo at Airfest 2014

Contest Date: 
Sat, 08/09/2014
Robots currently registered:
Cone Ranger
Team Conehead Robomagellan

SRS Robo-Magellan

Contest Rules

revised 1-1-07


Robo-Magellan is a robotics competition emphasizing autonomous navigation and obstacle avoidance over varied, outdoor terrain. Robots have three opportunities to navigate from a starting point to an ending point and are scored on time required to complete the course with opportunities to lower the score based on contacting intermediate points.

This page is a rule set for this general contest: 

ChiBots monthly meeting - Robotics and gardening

06/08/2014 13:00

June meeting topic:  Robotics and gardening

Learn about a garden that can grow even when you're out of town!
Keith Weber of Dragon R&D will be our guest to discuss and show how robotics can be used to help create an aquaponic or hydroponic system; it can even run on solar power.  Learn basic tips for getting started.

Voltage Regulation, Part 2 of 3

This part describes the circuits using the four regulators and the loads described in the first part



This switching regulator provides 500 mA of current to the circuit. This makes it ideal for small electronic circuits that don’t demand much. It has a peak current output of 1.5 A which means that it can provide 1.5 A of current, but only for a short period of time.

Robot Magazine, July/August 2014

Attached is a PDF file of the cover of the issue that features the Parallax Mini Sumo article that a team of ChiBots members put together late last year. Congrats to all!


Don't tell mom

06/14/2014 12:00

Gail Borden Public Library in Elgin, IL is planning a "Don't Tell Mom" program for June 14, in which we'll have hands-on science, tech, hardware, etc. activities for kids and their parents. We want to do things that are cool and "dangerous".


Times tbd



Airfest 2014

08/09/2014 09:00

BSA Airfest 2014

Robot demonstrations, displays and mini presentations.

SRS Robomagellan on the football field

Quick facts:

  • Date: August 8-10, 2014
  • Location: Lewis University Airport in Romeoville



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