Sara Cladlow headshot

the Adventures of Sara Cladlow

I am Sara Cladlow, a social consultant working in Washington, DC. I provide consulting, social training, and event services for both corporate and political clients.

My adventures are chronicled in the eChallenge puzzles.

You can read my adventure and test your skills by solving the challenges in each eChallenge puzzles.

More About eChallenge Puzzles

The eChallengeCoin is one example of eChallenge puzzles. There will be an annual eChallengeCoin. At other times, there will be other eChallenge puzzles like the eChallengeCard. The shape may change, the each puzzle with be a challenge!

Every eChallenge puzzle has a series of interactive challenges which will use a combination of touch sensors (or buttons) and LEDs. When appropriate, an puzzle may have additional interactive elements such as environmental sensors or buzzers. In addition to the interactive challenges, each new eChallenge puzzle will have another story from the Adventures of Sara Cladlow. Within each story, you are tasked with solving the challenges Sara encounters. The story is accessed through the UART connection on the eChallenge puzzle.

When an eChallenge puzzle wakes, it will show the current status. The status includes which interactive challenges have been solved, which story challenges have been solved, and if the bonus has been achieved. A solid LED means a challenge is completed and the next challenge is shown with a blinking LED. Touching any sensor (or button) will leave status mode and begin the next unfinished challenge. eChallenge puzzles go to sleep after a challenge has been completed or failed. They also go to sleep if idle for 60 seconds.

eChallenge puzzles also have demos. To access a demo, touch opposing sensors (or buttons) while waking the puzzle. Once a demo has been activated, it remains active until it is deactivated. To return to the challenges, touch any single sensor (or button) while waking the puzzle.

TIP: Most demos use all sensors at the same time to immediately put the puzzle back to sleep. Where applicable, the wake sequence will also put the puzzle back to sleep. Some interactive challenges are lengthy. Starting with 2021 eChallenge puzzles, activating the wake sequence while an interactive puzzle is running will immediately finish the puzzle and wait for the user to respond.

IMPORTANT: The UART connection runs at 9600 baud (8N1). It works with FTDI's using the CP210x chip. For some reason which escapes logic, the 2020 eChallengeCoin does not work with FTDI's using the FT232 chip.

Latest News

May 2021

Availability of the 2021 eChallengeCoin

The 2021 eChallengeCoin is in production! The initial test batch has been assembled and is winding its way through quality testing and packaging. The final touches are being applied and will soon be available. At the same time, there is a full batch currently being assembled and should enter testing and packaging in the coming weeks. The goal this year is to have more coins ready more quickly!

The eChallengeCoins are available on Tindie!

The listing for the 2021 eChallengeCoin is live and has the option to get notified when stock is added! There will also be regular posts on Twitter, Instagram, and here.

February 2021

2020 2021 eChallengeCard

The 2020 eChallengeCard was planned for Hackaday SUPERCONFERENCE but so many things conspired to delay it that it's now in the works for 2021!

There is not too much to share at this time but to say its the size of a standard ID badge which means it has plenty of space on the PCB for some interesting challenges!

July 2020

2020 eChallengeCoin Sold Out

The 2020 eChallengeCoin was popular - a bit more popular than expected! There were 250 eChallengeCoins made and they were all made by hand. A huge THANK YOU to everyone who placed an ordered.

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