Chichi
jai-git4208·chichi·PCB/chichi.kicad_pcb
About the Chichi PCB
Chichi is an open source ESP32 PCB design by jai-git4208, published on GitHub under the MIT license. It is a 2-layer board measuring 36 × 48.5 mm, with 7 components from 6 distinct parts.
Its main chip is the ESP32-C3_SUPERMINI_TH, from the ESP32 family. Other key parts include the Charger_Module and MT3608. By type, the board carries 4 ICs and 2 diodes.
It belongs with the iot & wireless and power & battery designs in this gallery.
From the project
Chichi is a tiny, adorable, hand-crafted smart LED lamp shaped like a glowing egg with a baby-chick heart inside. Designed to be soft, warm, and full of personality, Chichi reacts to your touch and lights up your space with gentle, playful magic.
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.

Main components on the Chichi
Chichi bill of materials (BOM)
7 components, 6 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-C3_SUPERMINI_TH | MODULE_ESP32-C3_SUPERMINI_TH | U1 |
| 1 | Charger_Module | TP4056-18650 | U2 |
| 1 | ~ | LiPo | U3 |
| 1 | MT3608 | MT3608 Boost Converter | U4 |
| 1 | ~ | piezo | piezo1 |
| 2 | WS2812B | LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D5, D6 |
Chichi design files
The KiCad project lives in the jai-git4208/chichi repository on GitHub; these links point at the commit this page was built from.
- LayoutPCB/chichi.kicad_pcb
- SchematicPCB/chichi.kicad_sch
- BOMBOM.csv
Chichi: common questions
What microcontroller does the Chichi use?
The Chichi is built around the ESP32-C3_SUPERMINI_TH, from the ESP32 family.
How big is the Chichi PCB?
The Chichi measures 36 × 48.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Chichi?
7 components, from 6 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Chichi design files?
From the jai-git4208/chichi repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Chichi design in my own project?
Yes, under the terms of its MIT license, which jai-git4208 chose for the repository.
Can I test firmware for the Chichi without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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