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Add micro:bit distance checker answer key (social distancing project)#654

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Add micro:bit distance checker answer key (social distancing project)#654
beagandica wants to merge 1 commit into
NuevoFoundation:masterfrom
beagandica:content/answer-key-microbit-distance-checker

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Summary

Add a teacher reference answer key for the micro:bit Wireless Social Distancing workshop.

Changes

  • content/english/microbit-distance-checker/answer-key.md (new, 160 lines)
    • Complete solution in JavaScript and Blocks description table
    • Step-by-step breakdown of all 6 workshop pages with code added per step
    • Key concepts: radio groups, signal strength (RSSI), -67 dBm threshold, variables, if/else
    • Troubleshooting table (5 common problems with causes and solutions)
    • Extension ideas for advanced students (threshold tuning, signal display, traffic light system, sound)
    • Link to finalCode.png screenshot for visual reference

Languages affected

  • English only. Brazilian Portuguese and Korean translations exist but do not have answer keys (tracked in backlog).

Testing

  • Hugo build passes
  • No new images referenced (text-only answer key, links to existing screenshot)
  • All MakeCode API calls verified (radio.onReceivedNumber, radio.receivedPacket, basic.showIcon)
  • 10-model QA passed (3 clean convergence passes)

Teacher reference for the micro:bit Wireless Social Distancing workshop.
Provides complete solution in both JavaScript and Blocks description,
step-by-step breakdown of all 6 workshop pages, troubleshooting table,
and extension ideas for advanced students.

Key concepts covered: radio communication, signal strength (RSSI),
-67 dBm threshold at 6 feet, variables, if/else conditionals,
LED icon display, device pairing and code download.

10-model QA passed (3 clean convergence passes).
Hugo build verified.

Co-authored-by: Copilot <[email protected]>
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