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In the News


"Who Are We?"

Curious and precocious Bret Harte High students, especially geeks, techies and

other outliers, led by two adult onset nerds.

Want to help?

We welcome help, donations, suggestions, etc.

Please contact us! Thank you!

Contact Information

We can be reached at:

or "friend" us on Facebook: Cybullfrogs

2015 Cybullfrogs Triathlon Participants

IMG 7807

"What We Do?"

The purpose of the club is to provide opportunities for interested Bret Harte High students to explore robotics, programming and electronics,and to promote such interest within the greater community.

Coming Up

Our next event will be our LEGO Exhibition on Saturday, December 1, 2018, in the Bret Harte High Multipurpose Room. (Note: change of date)

This will be a Tug-of-War.

The registration for all events starts at 9:00 AM and the event begins approximately at 10:00 AM.

As always, there is no entry fee.

Our next events will be in the Sumobot Competition, on Saturday, February 23, 2019 and the Exhibition on Saturday, April 13, 2019. All events 

Please email if you have questions at

Calaveras Community Foundation Strikes Again

One year after generously awarding almost $10,000 via a competitive grant, the Calaveras Community Foundation has again approved our second grant application for approximately the same amount.


​We plan to upgrade our technology used in the ROV development by students, acquire additional EV3 kits as Cybullfrogs enrollment increases, and purchase Arduino kits. This growth in student activity in technology will be augmented by robotic and programming done in CFLC, Avery, and Mark Twain schools, as well as the pending addition of programming class(es) at Bret Harte. 

"What's Going On?"

Having successfully scheduled six Lego-oriented events during the 2014-16 school years, we have held two more events thus far during the 2016-17 school year, with a Sumo Bot on February 25 and the Exhibition on April 1 (no April's Fool) of 2017.


Updated rules, descriptions, and resource links will be made available within this page's left column.


The Cybullfrogs efforts will be expanding efforts to participate in the MATE ROV (underwater robotics) competition in Aptos on May 13, 2017. We may also compete in the Lockheed Martin Code Quest programming competition on April 29, 2017.


Is there an entry fee to participate? No.

Are events open to homeschoolers? Absolutely.

Must participants belong to a LEGO club or class? No.

Can I contact Mr. Randall if I have questions? Certainly.

Can I use either an NXT, EV3, or FATCAT EVB kit? Yes.