The Tamagotchi is a classis retro game played by not only kids but all ages time to time.
Galatchi is trying to be something similar but instead of:
its
The goal was simple:
To make something nostalgic enough but so unique and related to an area no one ever though of.
- XIAO ESP32-C3 Plateform
- 128x64 I2C OLED Display
- LSM6DSOXTR 6-Axis IMU
- PCA9535 GPIO Expander
- 5-Way Naavigation Joystick
- Dual Action Side Buttons ( like the ones in ps5 controller 🤓)
- Pizo Buzzer Audio
- LiPo Battery Powered
- USB-C Programming
- Open Source
The exact gameplay is still under development, but some basic interaction are built and all peripherals are working. The OLED display provied animatino and status information, while the joystick and buttons are used for navigations and actions. The IMU enables motion-based interactions such as shaking titling and gesture detection. Audio feedback is provieded though the integrated buzzer.
Beyond this basic gameplay, I have planned to make it in such a way where a extraterestial creature's egg is found in the spaceship, and u have to control the spaceshpi with help of the IMU sensors, and other inputs.
| Parameter | Value |
|---|---|
| MCU | Seeed XIAO ESP32-C3 |
| Display | OLED Display |
| Motion Sensor | 6-Axis IMU |
| Audio | Piezo Buzzer |
| Controls | 5-Way Joystick + 4 Button Dpad |
| Battery | Rechargeable LiPo |
| Expansion | I/O Expander |
| Connectivity | UCB-C |
| PCB | Custom 2-Layer PCB |
| Firmware | Open Source |
| No. | Quantity | Comment | Designator | Footprint | Value | Manufacturer Part | Manufacturer | Supplier Part | Supplier | LCSC Price | Link |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 4kHz | BUZZER1 | BUZ-TH_BD12.5-P6.50-D1.4 | 4kHz | 1207-P6.5MM | XHXDZ(兴华鑫) | C49246964 | LCSC | https://www.lcsc.com/product-detail/C49246964.html | |
| 2 | 1 | B2B-PH-K-S-GW | CN1 | CONN-TH_B2B-PH-K-S | B2B-PH-K-S-GW | JST | C5251182 | LCSC | https://www.lcsc.com/product-detail/C5251182.html | ||
| 3 | 2 | TL1100CF160Q | KEY1 KEY2 | KEY-TH_TL1100CF160Q | TL1100CF160Q | E-Switch | C273459 | LCSC | https://www.lcsc.com/product-detail/C273459.html | ||
| 4 | 1 | 2.2K | R1 | R0603 | 2.2K | 12.0978 | |||||
| 5 | 1 | Joystick | SW1 | SW-SMD-6P-L10.5-W10.0_C2858290 | Joystick | SHOU HAN(首韩) | C2858290 | LCSC | https://www.lcsc.com/product-detail/C2858290.html | ||
| 6 | 4 | F1B060211S | SW2 SW3 SW4 SW5 | SW-TH_4P-L4.5-W4.5-P3.00-LS4.8 | F1B060211S | SAMZO(三佐) | C29780794 | LCSC | https://www.lcsc.com/product-detail/C29780794.html | ||
| 7 | 1 | XIAO-ESP32-C3 | U1 | Seeed_Studio_XIAO_Series:XIAO-ESP32-C3-SMD | XIAO-ESP32-C3-SMD | 12.0978 | https://www.seeedstudio.com/XIAO-ESP32C3-p-5431.html | ||||
| 8 | 1 | HS96L03W2C03 | U2 | OLED-TH_L27.8-W27.2-P2.54_C9900033791 | HS96L03W2C03 | HS(汉昇) | C5248080 | LCSC | https://www.lcsc.com/product-detail/C5248080.html | ||
| 9 | 1 | PCA9535PW | U3 | TSSOP-24_L7.8-W4.4-P0.65-LS6.4-BL | PCA9535PW | NXP(恩智浦) | C129517 | LCSC | https://www.lcsc.com/product-detail/C129517.html | ||
| 10 | 1 | LSM6DSOXTR | U4 | LGA-14L_L3.0-W2.5-P0.50-TL | LSM6DSOXTR | ST(意法半导体) | C481766 | LCSC | https://www.lcsc.com/product-detail/C481766.html |
The board includes: Seed XIAO ESP32-C3 OLED Display Interface PCA9535 I/O Expander LSM6DSOXTR 6-Axis IMU Piezo Audio System Battery Connector UCB-C Programming Interfaceterface
./PCB/GalatchiGerber.zip./PCB/GalatchiBOM.csvRecommended tools:
- Flux
- Fine-tip Soldering Iron
- Tweezers
- Hot Air Station
Connect the device using USB-C.
./Firmware/Power on Galatchi.
Watch your egg hatch.
Begin exploring an entirely unknown spcies.
Retro Gaming Enthusiasts Open Source Harware Projects STEM Education Embedded Systems Learning Interactive Electronicsnics
Galatchi/
├── PCB/
├── CAD/
├── Firmware/
├── Assets/
├── Gallery/
├── Docs/
└──README.mdADME.md- Concept Design
- Schematic Design
- PCB Design
- Final Build
- Community Testing
Contributions, suggestions, and feedback are welcome.
If you'd like to improve Galatchi
git clone
cd Galatchi- Create a feature branch
- Make your changes
- Commit your work
- Open a pull request
Built with ❤️ for:
- Tiny Gadgets
- Alien Worlds
- Retro Electronics
- Open Source Hardware
- Pocket-Sized Adventures
This project is licensed under the MIT License.
