EBYTE ESP32 Series Development Board User Manual
- June 10, 2024
- ebyte
Table of Contents
ESP32 series development board
User manual
ESP32 Series Development Board
Disclaimer and copyright notice
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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.
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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
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Technology Co., Ltd. does not guarantee that the content of this manual is
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Module introduction
1.1 Features
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 interface| USB| –
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
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.
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 |
| 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:
- P: power supply; I: input; O: output;
- Pins D0, D1, D2, D3, CMD, and CLK are used for internal communication between the ESP32 chip and the SPI flash and are centrally distributed on both sides of the development 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.
- 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 development board are reserved for internal use.
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.
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;
Version
| Version | Revise date | Revise description | Maintenance person |
|---|---|---|---|
| 1 | 11/22/2022 | Initial version | Hao |
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Documents / Resources
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EBYTE ESP32 Series Development
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[pdf] User Manual
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References
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