Devlog #5 – HydraCoaster
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Printed and converted to V2 of the hardware enclosure (images not attached)! New CAD has an added cork base, and had to add the hardware for a buzzer as well.
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Made HydraCoaster fully wireless! It now streams weight over WiFi (UDP), reflashes over the air, and the USB cable is optional. I also built a notification system: a piezo buzzer plays a three-tone alert (low for hearing loss, mid for loudness, high to beat noise-cancelling), with the onboard LED flashing white in sync.
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The server detects sips from weight drops, and buzzes the coaster when you haven’t drunk for too long — 20 min base, shortened in hot/dry weather (OpenWeatherMap), relaxed after a good drinking session. Dashboard got a console showing location/temp/humidity/interval, a test buzz button, and persistent toggles for sound, LED, and reminders.