CookieDispenser.ino pin map here, actual code rather than guessing from the wiring picture btSerial on 5/6 is commented out; active status LED is pin 4. easy thing to miss Recovered the actual CookieDispenser.ino linked in the presentation,...
ID 1 = admin, 6 counters, next enrollment uses fingerCount+1 what stops ID 7 indexing past the array? also reboot + weekday reset need checking together The actual firmware allocates int numOfCookies[6] , int numOfTries[6] and int btWaitList[10]...
send '3' → count header + ba/bb/etc cookie events queue has 10 slots, append doesn't check capacity. if the reply gets lost, can refresh retry without counting the same cookie twice? The presentation links both the .ino and the MIT App Inventor...
5 days, repeated fingerprints, count cookies + retries separately keep the failed attempts too. also '10' in the lock table means no access within the limit, not success on try 10 Daily allowance test: enroll one administrator and five child...
fingerprint lock, then someone just tilts the box. right. 3×3 cm blocker through the chute slot — check it doesn't become a cookie jam machine failure mode: authentication at the fingerprint sensor does not prevent someone from accessing the...
4 LEDs = tiny vocabulary, no serial monitor needed. patterns should make sense without a decoder ring... save for later: blink rhythm vs color, esp if the colors are hard to tell apart problem: the original interaction depends on reading the...
fingerprint → whose cookie allowance? admin / child paths need to stay separate clock resets when unplugged... accidental unlimited-cookie mode. need a power-cycle test System: Arduino UNO, fingerprint sensor, motor-driven dispensing lever,...
