Water-Spraying Alarm Clock Prototype - 30/06/2026 19:04 EDT
Budget: $3,000 – $5,000 CAD
I need a fully working bedside alarm clock that quite literally makes sure I wake up: when the alarm sounds it must fire a controllable burst of water at the sleeper. The end goal is a physical prototype I can test on my night-stand—not CAD files, renders, or theoretical schematics.
Core requirements
• Reliability comes first. Every component, from the pump to the seals, must be chosen for durability and long service life.
• The spray should sit between a firm hotel-style shower splash and a brief jet, with a dial or similar physical control so I can lengthen or shorten the burst. Would it be possible to also adjust the spray intensity, from shower splash to jet. The spray level should be adjustable, ranging from a mist option to a mini jet spray.
• Physical buttons handle all user interaction (set time, arm/disarm, adjust spray). No touchscreens or apps.
• A small, refillable water tank integrated into the chassis. Minimise leaks with thoughtful gasket placement and drip-proof routing.
• Rechargeable battery power so the unit can sit cord-free overnight; add a discreet USB-C port for charging.
• Simple yet tidy industrial design so it blends on a bedside table.
Deliverables
1. A complete, bench-tested prototype that consistently activates, sprays, and survives repeated refills.
2. All build documentation: wiring diagram, parts list with sourcing links, enclosure files (e.g., STL), and firmware source so I can reproduce or iterate the device.
3. Short demonstration video proving the alarm, spray mechanism, leak integrity, and recharge cycle.
I’m comfortable if you prototype with platforms such as Arduino, ESP32, Raspberry Pi Pico, or a custom PCB—whatever meets the durability target best. 3-D printed parts are fine for the enclosure as long as they’re sealed and robust.
The device should be designed to sit upright in a box that can be placed directly on the bed next to the sleeper.
I’ll approve the project once the unit withstands at least 20 consecutive alarm cycles without leaks, battery sag, or mechanical failure.
Core requirements
• Reliability comes first. Every component, from the pump to the seals, must be chosen for durability and long service life.
• The spray should sit between a firm hotel-style shower splash and a brief jet, with a dial or similar physical control so I can lengthen or shorten the burst. Would it be possible to also adjust the spray intensity, from shower splash to jet. The spray level should be adjustable, ranging from a mist option to a mini jet spray.
• Physical buttons handle all user interaction (set time, arm/disarm, adjust spray). No touchscreens or apps.
• A small, refillable water tank integrated into the chassis. Minimise leaks with thoughtful gasket placement and drip-proof routing.
• Rechargeable battery power so the unit can sit cord-free overnight; add a discreet USB-C port for charging.
• Simple yet tidy industrial design so it blends on a bedside table.
Deliverables
1. A complete, bench-tested prototype that consistently activates, sprays, and survives repeated refills.
2. All build documentation: wiring diagram, parts list with sourcing links, enclosure files (e.g., STL), and firmware source so I can reproduce or iterate the device.
3. Short demonstration video proving the alarm, spray mechanism, leak integrity, and recharge cycle.
I’m comfortable if you prototype with platforms such as Arduino, ESP32, Raspberry Pi Pico, or a custom PCB—whatever meets the durability target best. 3-D printed parts are fine for the enclosure as long as they’re sealed and robust.
The device should be designed to sit upright in a box that can be placed directly on the bed next to the sleeper.
I’ll approve the project once the unit withstands at least 20 consecutive alarm cycles without leaks, battery sag, or mechanical failure.