Tab5
A large 5-inch Home Base for shared story state and adult controls. It uses an ESP32-P4 plus ESP32-C6 wireless module, so give it its own bring-up path.
What you own
| Hardware | Qty | Sidequest job | First use |
|---|---|---|---|
| Tab5 | 1 | Home Base | After the hunt works |
| Cardputer ADV | 2 | Field Kits | Use one first |
| StackChan robot | 1 | Character | After core loop |
| NFC Universal Unit | 2 | Checkpoint readers | Use one first |
| 13.56 MHz cards | 20 | Artifacts | Label five first |
| Chain DualKey | 1 | GO / HINT | First upgrade |
| Chain RGB 8×8 | 1 | Progress light | First upgrade |
| Catch SG92R | 1 | Victory prop | Late upgrade |
| Cardputer Accessory Kit v1.1 | 1 | Repair stock | Keep sealed |
| StackChan Repair Kit | 1 | Repair stock | Keep sorted |
Open only these
First-weekend pile
One Cardputer ADV. One external NFC reader. Five cards. One known-good USB-C data cable. One HY2.0-4P cable.
⌨ + ◉ + 5× ▭Leave every other gadget in its box
Expected
A small, calm bench with no mystery parts.
If not
Sort by the inventory table before adding power.
What each piece does best
Cardputer ADV ×2
Tiny field computers with keyboard, screen, sound, mic, motion, microSD, battery, and ports. Great for clues and codes. Do not require typing for younger players.
StackChan
A theatrical character with screen, camera, mics, speaker, sensors, LEDs, touch, onboard NFC, and two servos. It reacts; it never owns progress.
NFC units ×2
External readers at I²C address 0x50. Pair one with
each Cardputer. Use card UIDs as game IDs, never as keys.
DualKey + RGB
Two chunky buttons drive a 64-pixel matrix through UART. This is a launch pad, not a Grove/I²C pair.
Catch
An SG92R gripper for a paper flag or light gate. It is not a lock and must never close on fingers.
Two connection maps
FIELD KIT → HY2.0-4P → CHECKPOINT
[Cardputer
ADV] GND / 5V / GPIO2 / GPIO1 [Unit NFC · I²C
0x50]
LAUNCH PAD → CHAIN BRIDGE → PORTAL
LIGHT
[DualKey] arrow points outward · UART 115200 8N1
[RGB 8×8 · brightness ≈ 50%]
Expected
The matrix responds and stays comfortably cool.
If not
Power down. Check bridge direction before changing code.
Label the repair drawer
Cardputer kit
Stamp-S3A, ST7789V2 display, hex key, and pin sticker.
StackChan kit
Cables, screws, and hex keys. No spare servos, controller, or body electronics.
"Repair kit" does not mean "second robot." Keep both kits labeled.
Add five boring heroes
- Three tested USB-C data cables.
- A powered hub or known-good 5V adapters.
- Painter’s tape, removable labels, and a thick marker.
- A small parts organizer.
- Cardboard or foam board for safe prop tests.
Exact board versions and official links live in the source guide. Re-check them when firmware work begins.