{"product_id":"ai-voice-assistant-kit-i2s-mic-amp-choose-your-board","title":"AI Voice Assistant Kit — I2S Mic + Amp, Choose Your Board","description":"\u003cp\u003eEverything needed to build a device that \u003cstrong\u003ehears you, thinks in the cloud, and answers out loud\u003c\/strong\u003e. Digital audio in and out over I2S — no DAC, no analog noise.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's in every kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eINMP441\u003c\/strong\u003e I2S MEMS microphone — digital audio in, no ADC noise\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMAX98357A\u003c\/strong\u003e I2S 3W Class-D amplifier — digital audio out, no DAC needed\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e3W 8Ω speaker\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eTactile button + status LED (wake \/ mute \/ state)\u003c\/li\u003e\n\u003cli\u003eDupont jumper wire kit\u003c\/li\u003e\n\u003cli\u003eWiring diagram and working example firmware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eChoose your board\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eESP32-DEVKITC (WROOM-32)\u003c\/strong\u003e — the one to pick if you want the device to answer a \u003cem\u003ephone call\u003c\/em\u003e. It has Bluetooth Classic, so it can pair to a phone as a hands-free headset and sit inside a real call. WiFi for the cloud agent.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eESP32-S3 SuperMini\u003c\/strong\u003e — more RAM and a faster core, better for on-device buffering and richer audio handling. WiFi + BLE. \u003cem\u003eBluetooth Classic is not available on the S3, so it cannot do the phone-call bridge.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRaspberry Pi Zero 2 W\u003c\/strong\u003e — full Linux. Run Python, use any speech library you like, no firmware flashing. Needs a microSD card and a 5V supply (not included).\u003c\/p\u003e\n\n\u003ch3\u003e⚠ Why there is no Arduino UNO option\u003c\/h3\u003e\n\u003cp\u003eAn UNO has no WiFi and no I2S peripheral, and 2KB of RAM. It cannot reach a cloud service, cannot drive either of the audio modules in this kit, and cannot buffer speech. We would rather tell you that than sell you a kit you cannot finish.\u003c\/p\u003e\n\n\u003ch3\u003eWhat you build with it\u003c\/h3\u003e\n\u003cp\u003eA voice assistant, an intercom, a reception bot, a talking sensor, or a hands-free call answerer. The microcontroller captures audio and streams it to a server; speech-to-text, your logic, then text-to-speech comes back and plays through the amplifier.\u003c\/p\u003e","brand":"Compoden","offers":[{"title":"ESP32-DEVKITC (WROOM-32) — supports phone calls","offer_id":53885301621101,"sku":"CDN-KIT-VOICE-ESP32","price":1179.0,"currency_code":"INR","in_stock":true},{"title":"ESP32-S3 SuperMini — more RAM, no phone calls","offer_id":53885301653869,"sku":"CDN-KIT-VOICE-S3","price":1426.0,"currency_code":"INR","in_stock":true},{"title":"Raspberry Pi Zero 2 W — full Linux","offer_id":53885301686637,"sku":"CDN-KIT-VOICE-PIZERO","price":2989.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/ai-voice-kit-product.png?v=1788597585","url":"https:\/\/compoden.com\/products\/ai-voice-assistant-kit-i2s-mic-amp-choose-your-board","provider":"Compoden","version":"1.0","type":"link"}