Ebyte ESP32 Series User manual

ESP32 series development board User
manual

Chengdu Ebyte Electronic Technology Co.,Ltd ESP32 series development board User manual
Copyright ©2012–2022,Chengdu Ebyte Electronic Technology Co.,Ltd
Catalog
Disclaimer and copyright notice .............................................................................................. 1
1. Module introduction ....................................................................................................................... 2
1.1 Features ................................................................................................................................. 2
1.2 Parameters .............................................................................................................................2
2. Function introduction ......................................................................................................................3
2.1 components ........................................................................................................................... 3
2.2 Pin definition .........................................................................................................................4
2.3 Notes ..................................................................................................................................... 6
3. Program burning guide ................................................................................................................... 6
4. Version.............................................................................................................................................6
5. About us .......................................................................................................................................... 7

Chengdu Ebyte Electronic Technology Co.,Ltd ESP32 series development board User manual
Copyright ©2012–2022,Chengdu Ebyte Electronic Technology Co.,Ltd
1
Disclaimer and copyright notice
The information in this article, including the URL for reference, is
subject to change without notice. The document is provided "as is" without
warranty of any kind, including any warranties of merchantability,
fitness for a particular purpose or non-infringement, and any warranties
of any proposal, specification or sample referred to elsewhere. This
document disclaims any liability, including any liability for any patent
infringement arising from the use of the information contained herein.
No estoppel or other license to use any intellectual property rights,
express or implied, is granted herein.
The test data in this paper are all obtained by EBAI laboratory test,
the actual results may be slightly different.
It is hereby stated that all trade names, trademarks and registered
trademarks mentioned herein are the property of their respective owners.
Chengdu Yibai Electronic Technology Co., LTD reserves the right of
final interpretation.
Note：
This manual is subject to change due to product version upgrade or other reasons. Ebai Electronic
Technology Co., Ltd. reserves the right to modify the contents of this manual without any notice
or prompt. This manual is for use only. Chengdu Ebaite Electronic Technology Co., Ltd. makes every
effort to provide accurate information in this manual, but Chengdu Ebaite Electronic Technology
Co., Ltd. does not guarantee that the content of this manual is completely free from error, and
all statements, information and recommendations in this manual do not constitute any express or
implied warranty.

Chengdu Ebyte Electronic Technology Co.,Ltd ESP32 series development board User manual
Copyright ©2012–2022,Chengdu Ebyte Electronic Technology Co.,Ltd
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1. Module introduction
1.1 Features
ESP32-WROOM-32E ESP32-WROOM-32UE
ESP32-WROVER-IE
ESP32-WROVER-IE-TB 、ESP32-WROOM-32E-TB、ESP32-WROOM-32UE-TB are three entry-level development
boards that use the corresponding modules of the ESP32 series as required. The development board has complete
Wi-Fi and Bluetooth low power functions, and most of the pins of the module on the board have been drawn to the
two sides of the pin row, developers can easily connect a variety of peripheral devices through jumper, and can also
plug the development board into the breadboard for use.
1.2 Parameters
Item
Parameter
name
Value
Note
1
Support
Modules
ESP32-WROVER-IE
ESP32-WROOM-32E
ESP32-WROOM-32UE
WiFi serial port module
2
Size
48.2 * 27.9mm
USB connector included
3
Production
process
Lead-free process,
machine paste
Wireless products must be machine attached to ensure
batch consistency and reliability
4
Power supply
USB
-

Chengdu Ebyte Electronic Technology Co.,Ltd ESP32 series development board User manual
Copyright ©2012–2022,Chengdu Ebyte Electronic Technology Co.,Ltd
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interface
5
Communication
interface
TTL
-
6
Working
temperature
-40 ℃~ +85℃
Industrial grade
7
Working
humidity
10%RH ~ 90%RH
Relative humidity, no condensation
8
Storage
temperature
-40 ℃~ +125℃
Industrial grade
2. Function introduction
2.1 components
Figure 1 Main components The ESP32-WROVER-IE module is used as an example
Item
Firmware
Introduction
1
ESP32 series of modules
A module based on the ESP32 series. For more information,
please download the relevant materials from the official
website
2
EN
Reset button.
3
Boot
Download button. Press and hold the Boot key, and press the
EN key (do not release the Boot key at this time) to enter
the Firmware Download mode, and download the firmware through
the serial port.
4
USB-to-UART bridge
Single-chip USB-UART bridge that provides transfer rates of
up to 3 Mbps.

Chengdu Ebyte Electronic Technology Co.,Ltd ESP32 series development board User manual
Copyright ©2012–2022,Chengdu Ebyte Electronic Technology Co.,Ltd
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5
Micro USB connector
The USB port can be used as the power supply for the circuit
board or the communication port for connecting the PC to the
ESP32 series module.
6
5V Power On LED
When the development board is powered on (USB or external 5
V), the indicator will light up. See schematics in related
documents for more information.
7
I/O
Most of the pins of the on-board module have been drawn to
the development board's row pins. Users can program ESP32 to
realize PWM, ADC, DAC, I2C, I2S, SPI and other functions.
Note: For specific function instructions, refer to the user manual of the ESP32 series
corresponding module.
2.2 Pin definition
The following is a front view of ESP32-WROOM-32E-TB as an example:
Figure 2. Current test interface diagram
Pin number
Pin name
Type
Pin description
1
3V3
P
3.3 V power supply
2
EN
I
CHIP_PU, Reset
3
VP
I
GPIO36, ADC1_CH0, S_VP
4
VN
I
GPIO39, ADC1_CH3, S_VN
5
IO34
I
GPIO34, ADC1_CH6, VDET_1
6
IO35
I
GPIO35, ADC1_CH7, VDET_2

Chengdu Ebyte Electronic Technology Co.,Ltd ESP32 series development board User manual
Copyright ©2012–2022,Chengdu Ebyte Electronic Technology Co.,Ltd
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7
IO32
I/O
GPIO32, ADC1_CH4, TOUCH_CH9, XTAL_32K_P
8
IO33
I/O
GPIO33, ADC1_CH5, TOUCH_CH8, XTAL_32K_N
9
IO25
I/O
GPIO25, ADC1_CH8, DAC_1
10
IO26
I/O
GPIO26, ADC2_CH9, DAC_2
11
IO27
I/O
GPIO27, ADC2_CH7, TOUCH_CH7
12
IO14
I/O
GPIO14, ADC2_CH6, TOUCH_CH6, MTMS
13
IO12
I/O
GPIO12, ADC2_CH5, TOUCH_CH5, MTDI
14
GND
G
Ground
15
IO13
I/O
GPIO13, ADC2_CH4, TOUCH_CH4, MTCK
16
D2
I/O
GPIO9, D2
17
D3
I/O
GPIO10, D3
18
CMD
I/O
GPIO11, CMD
19
5V
P
5 V power supply
20
CLK
I/O
GPIO6, CLK
21
D0
I/O
GPIO7, D0
22
D1
I/O
GPIO8, D1
23
IO15
I/O
GPIO15, ADC2_CH3, TOUCH_CH3, MTDO
24
IO2
I/O
GPIO2, ADC2_CH2, TOUCH_CH2
25
IO0
I/O
GPIO0, ADC2_CH1, TOUCH_CH1, Boot
26
IO4
I/O
GPIO4, ADC2_CH0, TOUCH_CH0
27
IO16
I/O
GPIO16
28
IO17
I/O
GPIO17
29
IO5
I/O
GPIO5
30
IO18
I/O
GPIO18
31
IO19
I/O
GPIO19
32
GND
G
Ground
33
IO21
I/O
GPIO21
34
RX
I/O
GPIO3, U0RXD
35
TX
I/O
GPIO1, U0TXD
36
IO22
I/O
GPIO22
37
IO23
I/O
GPIO23
38
GND
G
Ground
Note: 1.P: power supply; I: input; O: output;
2.Pins D0, D1, D2, D3, CMD, and CLK are used for internal communication between th
e ESP32 chip and the SPI flash and are centrally distributed on both sides of the developmen
t board near the USB port. In general, it is best if these pins are not connected, otherwise
they may affect the work of SPI flash/SPI RAM.
3. Pin GPIO16 and GPIO17 are only applicable to the onboard ESP32-WROOM series and
ESP32-SOLO-1 development board. Pin GPIO16 and GPIO17 of the onboard ESP32-WROVER series de
velopment board are reserved for internal use.

Chengdu Ebyte Electronic Technology Co.,Ltd ESP32 series development board User manual
Copyright ©2012–2022,Chengdu Ebyte Electronic Technology Co.,Ltd
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2.3 Notes
If you think C15 may affect the use of the development board, you can remove C15 completely.
The specific location of C15 on the development board is shown in the yellow section below.
Figure 3
3. Program burning guide
Electricity before, please make sure that ESP32 WROVER - IE/ESP32 WROOM - 32 E/ESP32 - WROOM
- UE is in good condition.
Prepare tools: ESP32-WROVER-IE-TB /ESP32-WROOM-32E-TB/ ESP32-WROOM-32UE-TB, USB 2.0 data
cable (standard type A to Micro-B, computer (Windows, Linux, or macOS). (Make sure you use
the appropriate USB cable, some of which can only be used for charging, not for data transfer
and programming.)
Connected to the USB cable in PC software program burn;
4. Version
Version
Revise date
Revise description
Maintenance person
1.0
2022-11-22
Initial version
Hao

Chengdu Ebyte Electronic Technology Co.,Ltd ESP32 series development board User manual
Copyright ©2012–2022,Chengdu Ebyte Electronic Technology Co.,Ltd
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5. About us
Sales Hotline: [phone]
Company Tel: [phone]
Technical support: [email protected]
Official website: https://www.es-ebyte.com
Company Address: Building B5, No. 199, West District
Avenue, High-tech West District, Chengdu City, Sichuan
Province