AI_NFC_01 — AI Voice, NFC Audio & Bluetooth Speaker/App Board
A mass-produced board from a real, shipping AI companion product: talk to it, or tap an NFC card to trigger custom audio.
Achat en volume ? Le prix est négociable selon la quantité — contactez-nous.
Kit includes: mic, speaker, battery, NFC antenna, base SDK
Ce n'est pas une carte de développement générique — elle provient d'un produit réel, proche de la production, donc la taille et les fonctionnalités se rapprochent davantage d'un appareil fini que d'une carte d'évaluation.
Nous confirmons les détails par chat et envoyons un lien de paiement sécurisé avant l'expédition — pas de panier, pas de commande en ligne.
Vidéo de démonstration
AI voice conversation demo
NFC trigger demo
Caractéristiques
| Board size | 60 × 40 × 13mm |
| CPU | Dual-core 32-bit DSP, up to 320MHz, hardware single-precision float + math acceleration, I-cache/D-cache/MMU |
| Cache | 32KB 8-way I-cache + 32KB 8-way D-cache (carved out of on-chip SRAM) |
| On-chip SRAM | 578KB |
| RAM | 8MB SDRAM |
| Flash | 8MB |
| Storage expansion | microSD (TF card) slot supported |
| NFC | ID-based lookup — the tag stores a resource id, not the audio itself; the board reads the id, fetches the matching resource over the network, and plays it |
| AI voice | Conversational AI voice interaction |
| Voice wake / interrupt | VAD + AED — voice wake and barge-in (interrupt mid-reply) supported |
| Physical controls | Wi-Fi pairing button, play/pause, volume +, volume - |
| Wi-Fi | 2.4GHz, AP / STA / monitor mode, multi-AP STA with best-signal auto-connect, fast cold-start reconnect, power-save mode |
| Wi-Fi security | Open, WEP, WPA-PSK/WPA2-PSK (TKIP/AES/CCMP) |
| Wi-Fi TX power | DSSS 1M/s: 17dBm · MCS0: 16dBm · MCS7: 12dBm |
| Wi-Fi RX sensitivity | DSSS 1M/s: -95dBm · MCS0: -91dBm · MCS7: -72dBm |
| Bluetooth | BT v5.3 (BR+EDR+BLE), piconet + scatternet, class 2/3 TX power, GFSK + π/4 DQPSK all packet types — EDR supports Bluetooth speaker mode, BLE supports app connectivity |
| Bluetooth TX power | +15dBm |
| Bluetooth RX sensitivity | -93dBm |
| Audio amplifier | Recommended speaker: 4Ω, ≥3W rated, ≥89dB sensitivity — do not use a 2Ω speaker |
Contenu inclus
- Board (front + back shown in photos)
- Base driver SDK
- OTA update example
- Wi-Fi provisioning example
- NFC id-lookup sample: tag → resource id → network fetch → playback
- AI dialogue sample program
- Pre-flashed demo firmware
A mass-produced board from a real, shipping AI companion product — not a one-off prototype, so supply is consistent and restocking is straightforward. Two things are already wired and verified: conversational AI voice interaction, and NFC-triggered audio. The NFC side works by id lookup, not by storing audio on the card: each tag just holds a resource id, the board reads it, downloads the matching resource over Wi-Fi, and plays it — so the audio can be any length, and you can swap what a given card plays at any time without re-writing the tag. Resources can be your own preset content or fully user-uploaded, which is exactly how one of our existing customers runs it: a storybook machine where parents upload their own recorded audio, tied to the id on each physical book/card — tap a card, the matching story plays, with physical play/pause and volume buttons so kids don't need a screen. Bluetooth covers both directions too: EDR for Bluetooth-speaker mode, BLE for a companion app to connect to the board directly. SDK and sample firmware included so you can start modifying behavior instead of bringing up drivers from scratch.
Besoin de plus qu'une carte ?
Cette carte ne contient que l'essentiel : SDK pilote, exemple de mise à jour OTA, exemple de configuration Wi-Fi et un exemple de dialogue IA. Si vous avez besoin du système complet derrière — un backend/app où vos utilisateurs téléversent leur propre audio et un tag NFC le télécharge et le joue — ou d'un appareil fini sur mesure, c'est du développement sur mesure. Contactez-nous.