Balancerator: local feedback and hardware-revision notes

LCD + speaker working by day 22, finally feedback without serial monitor
Bluefruit link here but classic Bluetooth in the later app notes... check which board belongs to which version

recorded work: LCD and speaker were functional by Day 22. The speaker is intended to signal imbalance; the LCD provides a live data display and a debugging surface independent of the computer's serial monitor.

Arduino main-function flowchart, version 1.

Arduino control flow.

notebook references: Arduino LCD guide, speaker example, and Bluefruit pinout.

• revision issue: this early entry links a Bluefruit LE board, while the later mobile-app requirements explicitly say classic Bluetooth rather than BLE. Keep these as different hardware/software notes until the actual module used in each revision is confirmed.

• review questions: what values and units are shown on the LCD? Which condition activates the speaker, and does it latch or clear immediately? The dated workday notes do not supply those final rules.

Electronics enclosure layout.