Demo:
https://youtube.com/shorts/m5JpdUDIWmo
Note: you can see the journal/devlog here! :D to see how I got to this point!
HackCharm is a tiny, keychain / lil buddy that lives on your back or your keys and lights up with cute little faces! It will react to your taps, shakes, and any other love you show it!! It shows different emotions on its screen depending on how you interact with it. It's powered by an Xiao ESP32, a custom PCB, and lives inside a 3d printed shell! To sum it up HackCharm is a decorative and interactive no-maintenance tomagotchi mixed with a sci-fi gadget :D
I made HackCharm because I really just wanted to build something fun and full of personality! This project lets me bring all my favourite parts about building and tinkering together into this little cute device that I could carry around that can make me (and maybe other people too!!) smile every time I looked at it.
| Item | Purpose | Source | Price (CAD) |
|---|---|---|---|
| Xiao-ESP32-S3 | Controller | AliExpress(Link) | $11.08 |
| 128x128 OLED Display | Output | AliExpress(Link) | $8.44 |
| GY-362 ADXL362 Accelerometer | Input | AliExpress(Link) | $5.35 |
| 2.54mm Headers | Connector | AliExpress(Link) | $3.43 |
| 2.54mm Headers (Right Angle) | Connector | AliExpress(Link) | $2.60 |
| TS-1088 Button | Input | JLCPCB (PCBA) | ---- |
| PCB | PCB | JLCPCB | $5.77 |
| LI-PO Battery 3.7v 450mAh | Power | Self-Sourced | $12.99 |
| 3D Printed Casing | Housing | Self-Sourced | $0.00 |
| Total (CAD) | ---- | ---- | $49.66 |
| Total (USD) | ---- | ---- | $36.25 |