CHICHI is a portable smart lamp shaped like a newly hatched chick in a cracked egg. It brings warm ambient light and playful personality wherever you go — responding to your touch with vibrant colors and breathing effects that make it feel alive.
In a world of cold screens and rigid devices, CHICHI brings warmth and emotion to your workspace or bedside. It's not just a lamp — it's a companion that responds to you, glows with you, and adds a touch of playfulness to your day. Whether you need focus lighting, a mood boost, or just something cute to brighten your desk, CHICHI is there.
- Gesture-Controlled - No buttons needed, just slap or tap
- Adorable Design - Shaped like a chick hatching from an egg
- RGB LEDs - WS2812B addressable LEDs for smooth animations
- Portable & Rechargeableable - Built-in Li-Po battery with USB-C charging
- Smart Interactions:
- Single Slap - Change colors
- Double Slap - Power ON/OFF
- Idle Mode - Soft breathing glow when untouched
- Expandable - ESP32-C3 with Wi-Fi & Bluetooth LE for future featuresures
- Compact & CuteCute - Translucent 3D-printed shell with diffused lighting
The circuit is built around the ESP32-C3 Supermini microcontroller with:
- 2x WS2812B addressable RGB LEDs in series (D5 → D6)
- Piezo disc sensor connected directly to ESP32 GPIO
- Battery Charger 1A module with USB input
- LiPo battery providing power to entire system
- Simple, compact design with minimal external components
Custom PCB designed for compact integration inside the egg shell::
- 2 WS2812B LEDs (D5 and D6) for efficient lighting
- ESP32-C3 Supermini module headers
- Battery Charger 1A module integration
- Piezo sensor connection pads
- LiPo battery connector
The 3D-printed case features:
- Translucent white PLA/PETG for frosted glow effect
- Two-piece egg design (cracked shell aesthetic)
- Internal cavity for PCB and battery
- Smooth surface finish for even light diffusion
- Compact size: 60-90mm tall (customizable)
- added a cyylinder to be able to open case easily.
Here's your updated BOM with prices and links:
- ₹1,799 (INR)
- $21.67 (USD)
Note: Currency conversion based on approximate rate of ₹84 = $1 USD BOM csv: here!
A gentle slap on the shell cycles through vibrant color modes:
- Warm White - Cozy ambient lighting
- Cool White - Focus and productivity
- Red Glow - Evening/night mode
- Blue Wave - Calm and serene
- Green Pulse - Nature vibes
- Purple Dream - Creative energy
- Rainbow Fade - Playful and dynamic
- Breathing Mode - Slow pulsing (any color)
Two quick slaps turn CHICHI on or off. The LEDs fade smoothly to preserve battery and provide satisfying feedback.
When left alone, CHICHI breathes with a soft, warm glow — making it feel alive even when you're not interacting with it. Perfect for ambient mood lighting.
- Battery: 3.7V Li-Po (500-1200 mAh)
- Charging: Battery Charger 1A module via USB (5V input)
- Runtime: 3-6 hours depending on brightness
- Power Distribution: Direct battery power to ESP32 and LEDs
- Deep Sleep: Ultra-low power consumption when idle
- Model: ESP32-C3 Supermini
- Core: RISC-V single-core (32-bit)
- Features: Wi-Fi 802.11b/g/n, Bluetooth LE 5.0
- Programming: Arduino IDE / CircuitPython support
- GPIO: Digital I/O for LEDs and piezo sensor
- Power: 3.3V operation with onboard regulation
- LEDs: 2x WS2812B addressable RGB (D5, D6)
- Arrangement: Series connection for synchronized lighting
- Control: Single data line from ESP32 GPIO
- Voltage: 5V LEDs powered by battery
- Effects: Solid colors, transitions, breathing, animations
- Brightness: Software-controlled PWM
- Type: Piezo disc vibration sensor (piezo2)
- Size: 27-35mm diameter
- Connection: Direct to ESP32 GPIO
- Detection: Tap, slap, and pressure events
- Signal Processing: Software debouncing and threshold detection
- PCB: KiCad project files in
PCB/folder - Case: STEP and STL files in
CAD/folder - Firmware: Arduino code in
Firmware/folder - Resources: Schematics and images in
resources/folder
- Shell Color: Translucent White (frosted)
- LED Ring: Warm white base with RGB accents
- Charging Port: USB-C (accessible from bottom)
Designed and built for the Hack Club Blueprint program.
Designer: JAIMIN PANSAL
GitHub: jai-git4208
License: MIT
"CHICHI isn't just a lamp — it's a little friend that glows with you."