ESP32-S3-Korvo-1

AI voice development board with a 3-microphone array for far-field wake-word and offline speech command recognition in Chinese and English, using ESP-Skainet. Based on the ESP32-S3 SoC.

Logical pinout · physical placement not verified

2 PDM Interface (reserved)1
Type · Unknown
4 5 V Power On LED2
Type · Unknown
6 Battery Socket3
Type · Unknown
7 Battery Charger Chip4
Type · Unknown
8 Battery Green LED5
Type · Unknown
9 Battery Red LED6
Type · Unknown
10 USB Power Port7
Type · Unknown
11 USB-to-UART Bridge8
Type · Unknown
13 USB-to-UART Port9
Type · Unknown
15 Boot Button10
Type · Unknown
18 Speaker Output11
Type · Unknown
20 ADC Chip12
Type · Unknown
22 Codec_3V3 (NC)13
Type · Unknown
23 Audio Codec Chip14
Type · Unknown

Pin	Position	Type
2 PDM Interface (reserved)	1	Unknown
4 5 V Power On LED	2	Unknown
6 Battery Socket	3	Unknown
7 Battery Charger Chip	4	Unknown
8 Battery Green LED	5	Unknown
9 Battery Red LED	6	Unknown
10 USB Power Port	7	Unknown
11 USB-to-UART Bridge	8	Unknown
13 USB-to-UART Port	9	Unknown
15 Boot Button	10	Unknown
18 Speaker Output	11	Unknown
20 ADC Chip	12	Unknown
22 Codec_3V3 (NC)	13	Unknown
23 Audio Codec Chip	14	Unknown

Logical pinout · physical placement not verified

Pin details

14 connections

2 PDM Interface (reserved)
Unknown
1
4 5 V Power On LED
Unknown
2
6 Battery Socket
Unknown
3
7 Battery Charger Chip
Unknown
4
8 Battery Green LED
Unknown
5
9 Battery Red LED
Unknown
6
10 USB Power Port
Unknown
7
11 USB-to-UART Bridge
Unknown
8
13 USB-to-UART Port
Unknown
9
15 Boot Button
Unknown
10
18 Speaker Output
Unknown
11
20 ADC Chip
Unknown
12
22 Codec_3V3 (NC)
Unknown
13
23 Audio Codec Chip
Unknown
14

ESP32

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