External Baby Diaper Detector Using VOC Sensor + LED Alert
Budget: $30 – $250 USD
We are seeking an electronics developer to create a simple, safe, and low-cost prototype of an external device that can detect feces in a baby diaper by identifying VOC (Volatile Organic Compounds) and trigger a visual LED indicator (e.g., red for poop, green for clean).
This device must be non-contact, battery-powered, and safe for use around infants.
Key Features:
External only – the device should not touch the baby or the diaper.
VOC detection – using a sensor like MQ135 or similar.
LED alert system – simple red/green indication.
Battery-powered – USB rechargeable or replaceable battery.
Compact and safe design – must be comfortable to use near a baby.
Optional (if feasible): vibration or soft audio alert.
Deliverables:
Functional prototype (breadboard or final casing – flexible).
Complete circuit schematic + wiring instructions.
List of components (Bill of Materials).
Basic enclosure design (3D printable preferred, not required).
Documentation on usage and charging.
Project Goals:
Build a working MVP (Minimum Viable Product).
Ensure detection accuracy specifically for poop (not just general odors).
Prioritize baby safety and simplicity.
Budget & Timeline:
Budget: Please provide your best estimate – we’re looking for a budget-friendly solution.
Timeline: Delivery of prototype within 3–4 weeks preferred.
Skills Required:
Experience with gas/VOC sensors
Arduino or similar microcontroller experience
Hardware prototyping
(Optional) Enclosure or product design
This device must be non-contact, battery-powered, and safe for use around infants.
Key Features:
External only – the device should not touch the baby or the diaper.
VOC detection – using a sensor like MQ135 or similar.
LED alert system – simple red/green indication.
Battery-powered – USB rechargeable or replaceable battery.
Compact and safe design – must be comfortable to use near a baby.
Optional (if feasible): vibration or soft audio alert.
Deliverables:
Functional prototype (breadboard or final casing – flexible).
Complete circuit schematic + wiring instructions.
List of components (Bill of Materials).
Basic enclosure design (3D printable preferred, not required).
Documentation on usage and charging.
Project Goals:
Build a working MVP (Minimum Viable Product).
Ensure detection accuracy specifically for poop (not just general odors).
Prioritize baby safety and simplicity.
Budget & Timeline:
Budget: Please provide your best estimate – we’re looking for a budget-friendly solution.
Timeline: Delivery of prototype within 3–4 weeks preferred.
Skills Required:
Experience with gas/VOC sensors
Arduino or similar microcontroller experience
Hardware prototyping
(Optional) Enclosure or product design