ESP32 Baby Cry Detector Kit with Edge Impulse AI
Build a Smart Baby Cry Alert System with ESP32-S3 and Edge Impulse AI
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Imagine placing a small device near your baby's crib that listens, learns the unique pattern of your infant's cry, and instantly alerts you on a wireless buzzer unit in another room. This kit lets you build exactly that - a real-time embedded AI system that distinguishes a genuine cry from background chatter, TV sounds, or kitchen noise. You'll train a neural network to recognize baby cry audio, deploy it to an ESP32-S3, and create a portable parent alert unit. It's a complete machine learning project disguised as a parenting tool.
What You'll Build
You'll assemble two ESP32-S3 devices: a crib-side detector fitted with the INMP441 I2S microphone and a parent-side alert unit with a buzzer and red LED. The detector continuously captures audio, runs a TensorFlow Lite model trained by you on Edge Impulse, and wirelessly triggers the alert when a cry is detected. Both boards communicate over NRF24L01 modules, giving you a practical introduction to low-power wireless sensor networks.
What You'll Learn
- Collect and label audio data for baby cry vs. background noise
- Train a neural network classifier on Edge Impulse's online platform
- Deploy the model to ESP32-S3 and run real-time inference on INMP441 audio
- Set up wireless alerting between crib unit and parent unit using NRF24L01
Kit Contents
| Component | Quantity |
|---|---|
| ESP32-S3 Dev Board | 1 |
| INMP441 I2S Mic | 1 |
| Active Buzzer | 1 |
| 5mm Red LED | 2 |
| NRF24L01 | 2 |
| 100nF Capacitors | 10 |
| 10�F Capacitors | 4 |
| 10k? Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Jumper Wires | 20 |
| Micro USB Cable | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
CBSE Class 11-12 students building AI/ML projects for practical exams will find a ready-to-implement idea with clear learning outcomes. B.Tech ECE and EEE undergraduates can use it for embedded systems or IoT mini-projects. ATL Tinkering Lab mentors and Smart India Hackathon participants will appreciate the combination of Edge Impulse training, real-time audio processing, and wireless alerting. Even hobbyists at IIT/NIT/VIT/BITS maker spaces can extend the system for voice commands or home automation.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project - accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Open the AI companion by scanning the QR code on the kit box; it provides step-by-step visual guidance. You can also send a WhatsApp message for live human support.
Do I need prior experience with machine learning?
Not at all. The kit includes a guided workflow: record samples with your phone, upload to Edge Impulse, train the model with a few clicks, and deploy to the board via USB.
Can I use this kit for other sound classification projects?
Yes. Once you understand the pipeline, retrain the model to recognize doorbells, alarm sounds, or voice keywords. The hardware remains unchanged.
Is the parent unit battery operated?
The parent-side ESP32-S3 can be powered by any USB power bank, making it portable enough to move from room to room.
Voice - INMP441 mic + Edge Impulse sound classifier on ESP32-S3 detects baby cry vs background noise. Buzzes parent unit.
What's in this kit
- ESP32-S3 Dev Board
- INMP441 I2S Mic
- Active Buzzer
- 5mm Red LED x2
- NRF24L01 x2
- 100nF Caps x10
- 10�F Caps x4
- 10k? Resistors x5
- 400-pt Breadboard
- M-M Wires x20
- Micro USB Cable
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items