Overview

Nobody likes a meeting that drags on forever. But how to keep people on topic and the meeting moving along? Circuit Playground to the rescue!

This simple device allows you to increase the efficiency of meetings by putting a countdown timer in the hands of the speaker. 

This talking stick gives warnings of increasing urgency as the speaker's time runs down, and an alarm goes off when they've run over their allotted speaking time.

A 60 second countdown starts when user presses the A button. At 30 seconds it beeps and the onboard NeoPixels illuminate yellow. At 15 seconds it turns orange and beeps again, and at 5 seconds beeps again and goes red. The countdown can be paused by flipping slide switch to the left, and can be restarted by flipping switch back to the right and pressing the A button again. When the countdown hits 0 it beeps and flashes continually until it's tossed to the next speaker (basically shaken), at which point the countdown automatically restarts. 

This project is an extension of the "talking stick" concept, except this talking stick provides active feedback, limiting the amount of time the holder has to make their point and ensuring everyone equal opportunity to speak (other examples of this concept also exist elsewhere on the internet). 

Required Electronics

Circuit Playground Express

PRODUCT ID: 3333
Circuit Playground Express is the next step towards a perfect introduction to electronics and programming. We've taken the original Circuit Playground Classic and...
$24.95
IN STOCK

USB cable - USB A to Micro-B

PRODUCT ID: 592
This here is your standard A to micro-B USB cable, for USB 1.1 or 2.0. Perfect for connecting a PC to your Metro, Feather, Raspberry Pi or other dev-board or...
$2.95
IN STOCK

Enclosures

You may want to enclose your Circuit Playground Express somehow and make it easy to toss around. These two enclosures are both good options. The enclosure has a screw mount which works with the adapter for making a handle.

Adafruit Circuit Playground Express Enclosure

PRODUCT ID: 3915
We've got nice cases for many of our beloved boards, but the Circuit Playground Express has been left out of couture enclosure...
$4.95
IN STOCK

1/4" to 1/4" Screw Adapter - For Camera / Tripod / Photo / Video

PRODUCT ID: 2632
"Simplicity is the ultimate sophistication" - Leonardo da VinciThis 1/4" screw to...
$1.50
IN STOCK

DIY Ornament Kit - 6cm Diameter - Perfect for Circuit Playground

PRODUCT ID: 4036
Have you put up with mainstream, uninspiring, low-tech tree ornaments for too long? This season why not deck the halls with codes of holly?This DIY Ornament...
$1.95
IN STOCK

Power

In addition to the Circuit Playground Express, you will need some way to power it so you can use it without being attached to a computer. Choose an option that works best for you.

3 x AAA Battery Holder with On/Off Switch and 2-Pin JST

PRODUCT ID: 727
This battery holder connects 3 AAA batteries together in series for powering all kinds of projects. We spec'd these out because the box is slim, and 3 AAA's add up to about...
$1.95
IN STOCK

Alkaline AAA batteries - 3 pack

PRODUCT ID: 3520
Battery power for your portable project! These batteries are good quality at a good price, and work fantastic with any of the kits or projects in the shop that use AAA's. This is a...
$1.50
IN STOCK

Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh

PRODUCT ID: 3898
Lithium ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery...
$6.95
IN STOCK

If you choose to use a LiPo battery, be sure you have a way to charge it.

Materials

For this project you may also want to have:

This guide was first published on Jan 05, 2019. It was last updated on Jan 05, 2019. This page (Overview) was last updated on Oct 30, 2019.