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A pocket-size Decision Maker board powered by a rechargeable supercapacitor—no batteries needed.

 

  • MCU: ATtiny84A

  • Apps: Decision maker, Reaction test, Dice, Double dice, Rock-Paper-Scissors, Stopwatch, Coin toss, Blackjack

  • Display: SSD1306 OLED 0.96"

  • Recharge: via [USB/craange charger

 

Perfect for classroom demos, design sprints, or a smarter desk toy.

 

Why your students will love it.

 

• All-in-one board – Integrated USB-C socket and slide switch make it easy to mount your project in almost anything while keeping electronics hidden.

 

• Instant results – Pre-loaded with firmware so you use the product right after it's been charged.  Or choose to program your own responses with full code available on our GitHub Page

 

• Creative freedom – Build into their own imaginative project.

 

 

Kit Options

 

Option 1 – Basic Kit

Everything you need to build the Decision Maker board powered by a rechargeable supercapacitor.


Includes all components, OLED display, ATtiny84A microcontroller, and pre-programmed firmware with 8 built-in functions (Decision Maker, Reaction Test, Dice, Double Dice, Rock-Paper-Scissors, Stopwatch, Coin Toss, Blackjack).
Perfect for classroom use or individual makers.

 

Note that this option will require a USB A to C lead as the pupil soldered USB socket may not charge on USB C-C connections

 

Option 2 – USB-C Enhanced Kit

As above but includes a pre-soldered USB-C charging socket .  This option will mean the board is able to be recharged from any USB lead or port.
 

 

8-in-1 Decision Maker/Game Board — Supercap Powered

PriceFrom £7.50
Quantity
  • Included in both versions (Basic & USB-C Enhanced):

    • ATtiny84A microcontroller – pre-programmed with 8 built-in apps
      (Decision Maker, Reaction Test, Dice, Double Dice, Rock-Paper-Scissors, Stopwatch, Coin Toss, Blackjack)

    • 0.96″ OLED display (I²C) – crisp, bright white or blue text display

    • PCB – custom-designed ‘Decision Maker’ board with labelled silkscreen

    • Supercapacitor (1.5 F) – provides rechargeable power, no batteries required

    • Tactile push-button switch – for input and menu control

    • Tilt switch – for shake-based actions

    • Piezo buzzer – gives satisfying feedback tones

    • Pin headers and connectors – for assembly and charging options

    • Resistors and support components – for correct sensor and buzzer operation

    • Assembly guide & sketch (available on GitHub)

     

    Option 2 - Additional in the USB-C Enhanced Kit:

    • Pre-soldered USB-C charging socket

    • USB-C power management components (resistors & diodes for safe charging)

    • USB-C cable compatibility – works with any standard USB charger or power bank

     

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