Toytalk demo v5

tomonoriyamazaki·toytalker·devices/KiCad/toytalk_demo_v5/toytalk_demo_v5.kicad_pcb

About the Toytalk demo v5 PCB

Toytalk demo v5 is an open source ESP32 PCB design by tomonoriyamazaki, published on GitHub. It is a 2-layer board measuring 55 × 55 mm, with 34 components from 22 distinct parts.

Its main chip is the ESP32-S3-WROOM-1-N8R8, from the ESP32 family. Other key parts include the MAX98357AEWL_T, BQ24074RGTR, AP2112K-3.3TRG1 and TPS61022RWUR. By type, the board carries 12 capacitors, 10 resistors, 5 ICs, 3 switches, 1 connector and 1 microphone.

From the project

AI voice companion toy for kids

子供向け音声AIおもちゃ。話しかけると、好きなキャラクターの声で返事をしてくれる。

- 応答約2秒: STT→LLM→TTSを全区間ストリーミングでつなぎ、最初の音声チャンクが生成され次第再生を開始。サーバーレス（AWS Lambda）構成のまま体感レイテンシを最小化 - 相槌: メインの応答を生成している間に「そうだね〜」などの短い繋ぎ応答を先に返し、会話のテンポを保つ - ボイス・キャラクター切替: TTSプロバイダーをプラガブルに切替可能（OpenAI / Google / Gemini / ElevenLabs / Cartesia / FishAudio / ずんだもん / 自前クローンボイス）。キャラクターの人格プロンプトもDBで管理 - スタンドアロン動作: ESP32-S3搭載の専用基板、おもちゃ単体でWiFi経由でAWSと直接通信（設定ではスマホが必要）

Main components on the Toytalk demo v5

ESP32-S3-WROOM-1-N8R8 MAX98357AEWL_T BQ24074RGTR AP2112K-3.3TRG1 TPS61022RWUR

Toytalk demo v5 bill of materials (BOM)

34 components, 22 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	ESP32-S3-WROOM-1-N8R8	XCVR_ESP32S3WROOM1N8R8	U1
1	MAX98357AEWL_T	BGA9N40P3X3_134X143X69N	U2
1	BQ24074RGTR	QFN50P300X300X100-17N	U3
1	AP2112K-3.3TRG1	SOT95P285X140-5N	U4
1	TPS61022RWUR	CONV_TPS61022RWUR	U5
1	TYPE-C-31-M-12	HRO_TYPE-C-31-M-12	J1
1	SPH0645LM4H-1-8	MIC_SPH0645LM4H-B	MK1
1	SSAJ110100	SW_SSAJ110100	S1
2	SKRPABE010	SW_SKRPABE010	S2, S3
1	KT-0805W	LED_KT-0805W	D1
1	CYA0630-1.0UH	IND-SMD_L7.2-W6.6_GPSR0730	L1
3	10UF 10uF	C_0603_1608Metric	C1, C8, C12
5	22UF 22uF	C_0603_1608Metric	C2, C3, C6, C7, C9
3	0.1UF 0.1uF	C_0603_1608Metric	C4, C5, C11
1	1UF 1uF	C_0603_1608Metric	C10
2	5.1K 5.1k	R_0603_1608Metric	R1, R2
1	47	R_0603_1608Metric	R3
1	732K 732k	R_0603_1608Metric	R4
1	100K 100k	R_0603_1608Metric	R5
3	10K 10k	R_0603_1608Metric	R6, R8, R9

Show 2 more

Qty	Part	Footprint	Refs
1	2.4K 2.4k	R_0603_1608Metric	R7
1	1.1K 1.1k	R_0603_1608Metric	R10

Toytalk demo v5 design files

The KiCad project lives in the tomonoriyamazaki/toytalker repository on GitHub; these links point at the commit this page was built from.

Toytalk demo v5: common questions

What microcontroller does the Toytalk demo v5 use?

The Toytalk demo v5 is built around the ESP32-S3-WROOM-1-N8R8, from the ESP32 family.

How big is the Toytalk demo v5 PCB?

The Toytalk demo v5 measures 55 × 55 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Toytalk demo v5?

34 components, from 22 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Toytalk demo v5 design files?

From the tomonoriyamazaki/toytalker repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.