Ebyte ESP32-S3-MINI Series User manual

ESP32-S3-MINI Series
Development Board User Manual

Chengdu Ebyte Electronic Technology Co.,Ltd. ESP32-S3-MINI series development board user manual
Copyright ©2012–2023，Chengdu Ebyte Electronic Technology Co.,Ltd.
Contents
ESP32-S3-MINI Series .......................................................................................................................1
Development Board User Manual ...................................................................................................... 1
Disclaimer and Copyright Notice ....................................................................................................... 3
1. Module introduction .................................................................................................................... 1
1.1 Features .............................................................................................................................. 1
1.2 Parameter introduction .......................................................................................................1
2. Function Introduction .................................................................................................................. 2
2.1 Component introduction .................................................................................................... 2
2.2 Pin definition ......................................................................................................................4
2.3 Features .............................................................................................................................. 6
3. Notes for developing applications ............................................................................................... 6
4. Version Information ..................................................................................................................... 7
5. About us .......................................................................................................................................... 7

Disclaimer and Copyright Notice
The information in this document, including the URL address for reference, is subject to change
without notice. The document is provided "as is" without any guarantee responsibility, including any
guarantee for marketability, suitability for a specific purpose, or non-infringement, and any guarantee
for any proposal, specification or sample mentioned elsewhere. This document does not bear any
responsibility, including the responsibility for infringement of any patent rights caused by the use of
the information in this document. This document does not grant any license for the use of intellectual
property rights in estoppel or other ways, whether express or implied.
The test data obtained in the article are all obtained by the Ebyte laboratory, and the actual
results may vary slightly.
We hereby declared that all brand names, trademarks and registered trademarks mentioned in
this document are the property of their respective owners.
The final interpretation right belongs to Chengdu Ebyte Electronic Technology Co., Ltd.
Notice :
Due to product version upgrades or other reasons, the contents of this manual may be changed. Ebyte Electronic
Technology Co., Ltd. reserves the right to modify the contents of this manual without any hint or noticet. This
manual is only used as a guide. Chengdu Ebyte Electronic Technology Co., Ltd. makes every effort to provide
accurate information in this manual. However, we does not guarantee that the contents of the manual are
completely free of errors. All statements, information and suggestions in this manual do not constitute any express
or implied guarantee.

Chengdu Ebyte Electronic Technology Co.,Ltd. ESP32-S3-MINI series development board user manual
Copyright ©2012–2023，Chengdu Ebyte Electronic Technology Co.,Ltd.
1. Module introduction
1.1 Features
Figure 1 Actual picture of the module
ESP32-S3-MINI-1-TB&ESP32-S3-MINI-1U-TB are two entry-level development boards, using
ESP32-S3-MINI-1 &ESP32-S3-MINI-1U modules. This development board has complete Wi-Fi and low-power
Bluetooth functions, and most of the module pins on the board have been led to pin headers on both sides.
Developers can easily connect various peripheral equipments through jumpers according to actual needs. The
development board can also be used on a breadboard too..
1.2 Parameter introduction
No.
Parameter
name
Parameter value
Comment
1
Supported
module
ESP32-C3-MINI-1
ESP32-C3-MINI-1U
WiFi serial port module
2
Module size
62.74 * 25.4mm
Including USB interface
3
Production
Process
Lead-free process,
machine-mounted
Wireless products must be machine-mounted to ensure
batch consistency and reliability.
4
Power
supply
interface
USB
-
5
Communica
tion
Interface
TTL
-
6
Operating
temperature
-40 ~ +85℃
Industrial grade

Chengdu Ebyte Electronic Technology Co.,Ltd. ESP32-S3-MINI series development board user manual
Copyright ©2012–2023，Chengdu Ebyte Electronic Technology Co.,Ltd.
7
Working
humidity
10% ~ 90%
Relative humidity, no condensation
8
Storage
temperature
-40 ~ +125℃
Industrial grade
2. Function Introduction
2.1 Component introduction
Figure 2 Main component diagram
No.
Main components
Introduction
1
ESP32-S3-MINI-1&ESP32-S3-
MINI-1U
ESP32-S3-MINI-1 and ESP32-S3-MINI-1U are general-purpose Wi-Fi
+ Bluetooth Low Energy MCU modules with rich peripheral interfaces.
ESP32-S3-MINI-1 uses a PCB on-board antenna, and
ESP32-S3-MINI-1U uses a connector to connect to an external antenna.
The core of both modules is the ESP32-S3FN8 chip. The chip comes
with 8 MB flash, and since the flash is directly packaged in the chip, the
ESP32-S3-MINI-1/1U module has a smaller package size.
2
5 V convert to 3.3 V LDO
Power converter, 5 V input, 3.3 V output.
3
Pin Headers
All available GPIO pins (except the flash SPI bus) are routed to the
development board's pin headers. Please see Pin Headers for more
information.
4
USB to UART interface
The Micro-USB interface can be used as the power supply interface of
the development board to be used to burn firmware to the chip. It can
also be used as a communication interface to communicate with the

Chengdu Ebyte Electronic Technology Co.,Ltd. ESP32-S3-MINI series development board user manual
Copyright ©2012–2023，Chengdu Ebyte Electronic Technology Co.,Ltd.
chip through the onboard USB to UART bridge.
5
Boot key
Download button. Press and hold the Boot key and press the Reset key
simultaneously to enter the "firmware download" mode and download
the firmware through the serial port.
6
ESP32-S3 USB interface
ESP32-S3 USB OTG interface, supporting full-speed USB 1.1
standard. The ESP32-S3 USB interface can be used as the power supply
interface of the development board, burning firmware to the chip,
communicating with the chip through the USB protocol, and can also
be used for JTAG debugging.
7
Reset Key
Reset button.
8
USB to UART bridge
Single-chip USB to UART bridge providing transfer rates up to
3 Mbps.
9
RGB LED
Addressable RGB LED, driven by GPIO8.
10
3.3 V Power Indicator
After the development board is connected to the USB power supply, the
indicator light turns on.
Note: For specific function instructions, please refer to the user manual of
ESP32-S3-MINI-1&ESP32-S3-MINI-1U.

Chengdu Ebyte Electronic Technology Co.,Ltd. ESP32-S3-MINI series development board user manual
Copyright ©2012–2023，Chengdu Ebyte Electronic Technology Co.,Ltd.
2.2 Pin definition
The picture below shows the front view of ESP32-S3-MINI-1-TB&ESP32-S3-MINI-1U-TB:
Figure 3 Current test interface diagram
Pin number
Pin name
Type
Pin usage
1
3V3
P
3.3 V power supply
2
0
I/O/T
RTC_GPIO0, GPIO0
3
1
I/O/T
RTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0
4
2
I/O/T
RTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1
5
3
I/O/T
RTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2
6
4
I/O/T
RTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3
7
5
I/O/T
RTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4

Chengdu Ebyte Electronic Technology Co.,Ltd. ESP32-S3-MINI series development board user manual
Copyright ©2012–2023，Chengdu Ebyte Electronic Technology Co.,Ltd.
8
6
I/O/T
RTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5
9
7
I/O/T
RTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6
10
8
I/O/T
RTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7,
SUBSPICS1
11
9
I/O/T
RTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8,
FSPIHD, SUBSPIHD
12
10
I/O/T
RTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9,
FSPICS0, FSPIIO4, SUBSPICS0
13
11
I/O/T
RTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0,
FSPID, FSPIIO5, SUBSPID
14
12
I/O/T
RTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1,
FSPICLK, FSPIIO6, SUBSPICLK
15
13
I/O/T
RTC_GPIO13, GPIO13, TOUCH13, ADC2_CH2,
FSPIQ, FSPIIO7, SUBSPIQ
16
14
I/O/T
RTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3,
FSPIWP, FSPIDQS, SUBSPIWP
17
15
I/O/T
RTC_GPIO15, GPIO15, U0RTS, ADC2_CH4,
XTAL_32K_P
18
16
I/O/T
RTC_GPIO16, GPIO16, U0CTS, ADC2_CH5,
XTAL_32K_N
19
17
I/O/T
RTC_GPIO17, GPIO17, U1TXD, ADC2_CH6
20
18
I/O/T
RTC_GPIO18, GPIO18, U1RXD, ADC2_CH7,
CLK_OUT3
21
19
I/O/T
RTC_GPIO19, GPIO19, U1RTS, ADC2_CH8,
CLK_OUT2, USB_D-
22
20
I/O/T
RTC_GPIO20, GPIO20, U1CTS, ADC2_CH9,
CLK_OUT1, USB_D+
23
G
G
Ground
24
RST
I
EN
25
46
I/O/T
GPIO46
26
45
I/O/T
GPIO45
27
RX
I/O/T
U0RXD, GPIO44, CLK_OUT2
28
TX
I/O/T
U0TXD, GPIO43, CLK_OUT1
29
42
I/O/T
MTMS, GPIO42
30
41
I/O/T
MTDI, GPIO41, CLK_OUT1
31
40
I/O/T
MTDO, GPIO40, CLK_OUT2
32
39
I/O/T
MTCK, GPIO39, CLK_OUT3, SUBSPICS1
33
38
I/O/T
GPIO38, FSPIWP, SUBSPIWP
34
37
I/O/T
SPIDQS, GPIO37, FSPIQ, SUBSPIQ
35
36
I/O/T
SPIIO7, GPIO36, FSPICLK, SUBSPICLK
36
35
I/O/T
SPIIO6, GPIO35, FSPID, SUBSPID
37
34
I/O/T
SPIIO5, GPIO34, FSPICS0, SUBSPICS0
38
33
I/O/T
SPIIO4, GPIO33, FSPIHD, SUBSPIHD

Chengdu Ebyte Electronic Technology Co.,Ltd. ESP32-S3-MINI series development board user manual
Copyright ©2012–2023，Chengdu Ebyte Electronic Technology Co.,Ltd.
39
47
I/O/T
SPICLK_P, GPIO47, SUBSPICLK_P_DIFF
40
26
I/O/T
SPICS1, GPIO26
41
21
I/O/T
RTC_GPIO21, GPIO21
42
48
I/O/T
SPICLK_N, GPIO48, SUBSPICLK_N_DIFF, RGB
LED
43
5V
P
5 V power supply
44
G
G
Ground
Note: 1.P: power supply; I: input; O: output; T: can be set to high impedance.
2.3 Features
ESP32-S3-MINI-1-TB&ESP32-S3-MINI-1U-TB :The main components and connections are
shown in the figure below:
3. Notes for developing applications
Before powering on, please make sure that ESP32-S3-MINI-1-TB&ESP32-S3-MINI-1U-TB is intact.
Preparation tools: ESP32-S3-MINI-1-TB or ESP32-S3-MINI-1U-TB, USB 2.0 data cable (standard type A to
Micro-B type, computer (Windows, Linux or macOS). (Please make sure using an appropriate USB data
cable, some cables can only be used for charging and cannot be used for data transfer and programming.)

Chengdu Ebyte Electronic Technology Co.,Ltd. ESP32-S3-MINI series development board user manual
Copyright ©2012–2023，Chengdu Ebyte Electronic Technology Co.,Ltd.
4. Version Information
Version
Revision date
Revision notes
Maintenance Man
1.0
2022-10-27
Initial version
Hao
5. About us
Technical support: [e-mail]
Documents and RF Setting download link: https://www.ru-ebyte.com
Thank you for using Ebyte products! Please contact us with any questions or suggestions:
[e-mail]
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Web: https://www.ru-ebyte.com
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