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2.8inch ESP32-32E Display: Difference between revisions

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[[zh:2.8inch_ESP32-32E_Display]]
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* Comes with ESP32-WROOM-32E module, easy development, sufficient development resources
* Comes with ESP32-WROOM-32E module, easy development, sufficient development resources
* 2.8-inch color screen, 240x320 resolution ,the maximum support is 262K color (RGB666), commonly used 65K color (RGB565), display rich color
* 2.8-inch color screen, 240x320 resolution ,the maximum support is 262K color (RGB666), display rich color
* Rich interface, easy to connect a variety of peripherals (SPI, UART,etc.)
* Rich interface, easy to connect a variety of peripherals (SPI, UART,etc.)
* Supports external speakers to play audio
* Supports external speakers to play audio
Line 70: Line 75:
| align="center" |43.20(W)x57.60(H)
| align="center" |43.20(W)x57.60(H)
|-
|-
| align="center" |'''Number of Colors(Max)'''
| align="center" |'''Number of Colors'''
| align="center" |Max: 262K(RGB666)
| align="center" |Max: 262K(RGB666)
Common: 65K(RGB565)
Common: 65K(RGB565)
Line 138: Line 143:
|-
|-
| align="center" |'''LCD Outline Size'''
| align="center" |'''LCD Outline Size'''
| align="center" |50.00±0.2(W)x69.20±0.2(H)x2.3±0.1(D)(mm)(Excluding cables and adhesive backing)
| align="center" |50.00±0.2(W)x69.20±0.2(H)x2.3±0.1(D)(mm)
(Excluding cables and adhesive backing)
|-
|-
| align="center" |'''Touch Screen Outline Size'''
| align="center" |'''Touch Screen Outline Size'''
| align="center" |49.60±0.2(W)x68.80±0.2(H)x1.20 (D)(mm)(Excluding cables and adhesive backing)
| align="center" |49.60±0.2(W)x68.80±0.2(H)x1.20 (D)(mm)
(Excluding cables and adhesive backing)
|-
|-
| align="center" |'''Module Outline Size'''
| align="center" |'''Module Outline Size'''
Line 210: Line 217:


= Interface Definition =
= Interface Definition =
[[File:E32R35T-06.png|861x861px]]
[[File:E32R28T-06.png|861x861px]]


== Interface Function Description ==
== Interface Function Description ==
Line 259: Line 266:
|Used for ESP32 master control and LCD reset, level reset after pressing.
|Used for ESP32 master control and LCD reset, level reset after pressing.
|-
|-
| align="center" |'''Expand the input pin'''
| align="center" |'''Expand Pin'''
|1.25mm 2P connector. IO35 and IO39 are two input-only IOs that are used to access input signals.
|1.25mm 2P connector. Lead out GND, 3.3V, and IO35 pins,
of which IO35 can only be used as the input pin.
|-
|-
| align="center" |'''Speaker Interface'''
| align="center" |'''Speaker Interface'''
Line 266: Line 274:
|-
|-
| align="center" |'''SPI peripheral interface'''
| align="center" |'''SPI peripheral interface'''
|1.25mm 4P connector. For external connection to devices that use IIC communication.
It can be used as ordinary IO.
|-
| align="center" |'''I2C peripheral interface'''
|1.25mm 4P connector. For external connection to devices that use IIC communication.
|1.25mm 4P connector. For external connection to devices that use IIC communication.
It can be used as ordinary IO.
It can be used as ordinary IO.
Line 289: Line 293:
|-
|-
| align="center" |IO14
| align="center" |IO14
|SPI bus clock signal(shared by LCD and touch screen)
|LCD SPI bus clock signal
|-
|-
| align="center" |IO13
| align="center" |IO13
|SPI bus write data signal(shared by LCD and touch screen)
|LCD SPI bus write data signal
|-
|-
| align="center" |IO12
| align="center" |IO12
|SPI bus read data signal(shared by LCD and touch screen)
|LCD SPI bus read data signal
|-
|-
| align="center" |EN
| align="center" |EN
|LCD reset control signal, low level reset(share reset pin with ESP32-32E master)
|LCD reset control signal, low level reset(share reset pin with ESP32-32E master)
|-
|-
| align="center" |IO27
| align="center" |IO21
|LCD backlight control signal(high level backlight on, low level backlight off)
|LCD backlight control signal(high level backlight on, low level backlight off)
|-
|-
| rowspan="5" align="center" |'''Resistive Touch Screen'''
| rowspan="5" align="center" |'''Resistive Touch Screen'''
| align="center" |IO14
| align="center" |IO25
|SPI bus clock signal(shared by touch screen and LCD)
|Resistive touch screen SPI bus clock signal
|-
|-
| align="center" |IO13
| align="center" |IO32
|SPI bus write data signal(touch screen and LCD screen shared)
|Resistive touch screen SPI bus write data signal
|-
|-
| align="center" |IO12
| align="center" |IO39
|SPI bus read data signal(shared by touch screen and LCD screen)
|Resistive touch screen SPI bus read data signal
|-
|-
| align="center" |IO33
| align="center" |IO33
Line 317: Line 321:
|-
|-
| align="center" |IO36
| align="center" |IO36
|Resistive touch screen touch interrupt signal,generates touch when input low level to master
|Resistive touch screen touch interrupt signal,
generates touch when input low level to master
|-
|-
| rowspan="3" align="center" |'''RGB Three-color Light'''
| rowspan="3" align="center" |'''RGB Three-color Light'''
Line 334: Line 339:
|-
|-
| align="center" |IO23
| align="center" |IO23
|SD card SPI bus write data signal(shared by MicroSD card and SPI peripheral)
|SD card SPI bus write data signal
(shared by MicroSD card and SPI peripheral)
|-
|-
| align="center" |IO18
| align="center" |IO18
|SD card SPI bus clock signal(shared by MicroSD card and SPI peripheral)
|SD card SPI bus clock signal
(shared by MicroSD card and SPI peripheral)
|-
|-
| align="center" |IO19
| align="center" |IO19
|SD card SPI bus read data signal(shared by MicroSD card and SPI peripheral)
|SD card SPI bus read data signal
(shared by MicroSD card and SPI peripheral)
|-
|-
| rowspan="2" align="center" |'''Audio'''
| rowspan="2" align="center" |'''Audio'''
Line 351: Line 359:
| rowspan="2" align="center" |'''KEY'''
| rowspan="2" align="center" |'''KEY'''
| align="center" |IO0
| align="center" |IO0
|Download mode Select button(Press and hold the button to power on, then release to enter download mode)
|Download mode Select button
(Press and hold the button to power on, then release to enter download mode)
|-
|-
| align="center" |EN
| align="center" |EN
Line 358: Line 367:
| rowspan="2" align="center" |'''Serial Port'''
| rowspan="2" align="center" |'''Serial Port'''
| align="center" |RXD0(IO3)
| align="center" |RXD0(IO3)
|ESP32-32E serial port receiving signal(if the serial port is not used, it can be used as ordinary IO)
|ESP32-32E serial port receiving signal
(if the serial port is not used, it can be used as ordinary IO)
|-
|-
| align="center" |TXD0(IO1)
| align="center" |TXD0(IO1)
|ESP32-32E serial port sends signals(if the serial port is not used, it can be used as ordinary IO)
|ESP32-32E serial port sends signals
(if the serial port is not used, it can be used as ordinary IO)
|-
|-
| align="center" |'''Battery'''
| align="center" |'''Battery'''
Line 368: Line 379:
|-
|-
| rowspan="4" align="center" |'''SPI Peripheral'''
| rowspan="4" align="center" |'''SPI Peripheral'''
| align="center" |IO21
| align="center" |IO27
|SPI peripheral chip selection signal, low level effective(if the SPI device is not used, it can be used for ordinary IO)
|SPI peripheral chip selection signal, low level effective
(if the SPI device is not used, it can be used for ordinary IO)
|-
|-
| align="center" |IO18
| align="center" |IO18
|SPI bus clock pin for SPI peripherals
|SPI bus clock pin for SPI peripherals
(SPI peripherals are shared with MicroSD cards, if SPI devices or SD cards are not used, ordinary IO can be used)
(SPI peripherals are shared with MicroSD cards,  
 
if SPI devices or SD cards are not used, ordinary IO can be used)
|-
|-
| align="center" |IO19
| align="center" |IO19
|The SPI bus read data pin of the SPI peripheral
|The SPI bus read data pin of the SPI peripheral
(SPI peripherals are shared with MicroSD cards, if SPI devices or SD cards are not used, ordinary IO can be used)
(SPI peripherals are shared with MicroSD cards,  
 
if SPI devices or SD cards are not used, ordinary IO can be used)
|-
|-
| align="center" |IO23
| align="center" |IO23
|The SPI bus of the SPI peripheral writes data pins
|The SPI bus of the SPI peripheral writes data pins
(SPI peripherals are shared with MicroSD cards, if SPI devices or SD cards are not used, ordinary IO can be used)
(SPI peripherals are shared with MicroSD cards,  
 
if SPI devices or SD cards are not used, ordinary IO can be used)
|-
|-
| rowspan="2" align="center" |'''I2C Peripheral'''
| align="center" |'''NC'''
| align="center" |IO25
|I2C bus clock pin for I2C peripherals (can be used as normal IO if I2C device is not used)
|-
| align="center" |IO32
|I2C bus data pins for I2C peripherals (can be used for ordinary IO if I2C devices are not used)
|-
| rowspan="2" align="center" |'''NC'''
| align="center" |IO35
| align="center" |IO35
| rowspan="2" |It can only be used as input IO
|It can only be used as input IO
|-
| align="center" |IO39
|-
|-
|}
|}
= Quick Start Instructions =
[[File:Zip-001.png|24x24px]]  [[:en:res/E32R28T/2.8inch_ESP32-32E_E32R28T_E32N28T_Quick_Start.zip|'''2.8-inch ESP32-32E display module Quick_Start Package''']]
[[File:HTML-001.jpg|24x24px]]  [[:en:ESP32-32E display module Qucik Start|'''2.8-inch ESP32-32E display module Qucik Start''']]


= Data Pack Download =
= Data Pack Download =
[[File:Zip-001.png|24x24px]]  [[:en:res/Program/ESP32/3.5inch/ESP32-32E_ST7796_E32R35T_E32N35T_V1.0/3.5inch_ESP32-32E_ST7796_E32R35T_E32N35T_V1.0.zip|'''3.5-inch ESP32-32E display module data package''']]
[[File:Zip-001.png|24x24px]]  [https://pan.baidu.com/s/11318Ul_pkI4VLVG55H_Rxg?pwd=4s6k  '''2.8-inch ESP32-32E display module data package(Extract code: 4s6k)''']


= Product Documentation =
= Product Documentation =
Line 406: Line 420:


==== Product Specification ====
==== Product Specification ====
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/E32R35T_E32N35T_Specification_V1.0.pdf|'''3.5-inch ESP32-32E display module Specification''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R28T/E32R28T_E32N28T_Specification_V1.0.pdf|'''2.8-inch ESP32-32E display module Specification''']]


==== LCD Specifications ====
==== LCD Specifications ====
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/QD3579-Specifications-A.pdf|'''3.5-inch QD3579 screen specification''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R28T/QD-TFT2803_specification_v1.1.pdf|'''2.8-inch QD2803 screen specification''']]
 
== Quick Start Instructions ==
[[File:HTML-001.jpg|24x24px]]  [[:en:3.5inch ESP32-32E display module Qucik Start|'''3.5-inch ESP32-32E display module Qucik Start''']]


== User Manual ==
== User Manual ==
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/3.5inch_ESP32-32E_E32R35T_E32N35T_User_Manual.pdf|'''3.5-inch ESP32-32E display module User Manual''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R28T/2.8inch_ESP32-32E_E32R28T_E32N28T_User_Manual.pdf|'''2.8-inch ESP32-32E display module User Manual''']]


== Dimension Drawing ==
== Dimension Drawing ==
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/E32R35T_Size.pdf|'''E32R35T display module dimensions''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R28T/E32R28T_Size.pdf|'''E32R28T display module dimensions''']]


[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/E32N35T_Size.pdf|'''E32N35T display module dimensions''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R28T/E32N28T_Size.pdf|'''E32N28T display module dimensions''']]


== 3D Drawing ==
== 3D Drawing ==
[[File:Zip-001.png|24x24px]]  [[:en:res/E32R35T/E32R35T_3D.zip|'''E32R35T display module 3D image''']]
[[File:Zip-001.png|24x24px]]  [[:en:res/E32R28T/E32R28T_3D.zip|'''E32R28T display module 3D image''']]


[[File:Zip-001.png|24x24px]]  [[:en:res/E32R35T/E32N35T_3D.zip|'''E32N35T display module 3D image''']]
[[File:Zip-001.png|24x24px]]  [[:en:res/E32R28T/E32N28T_3D.zip|'''E32N28T display module 3D image''']]


== Schematic ==
== Schematic ==
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/3.5inch_ESP32-32E_E32R35T_Schematic.pdf|'''3.5-inch E32R35T display module Schematic diagram''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R28T/2.8inch_ESP32-32_Display_Schematic.pdf|'''2.8-inch ESP32-32E display module Schematic diagram''']]


== IO Resource Allocation Table ==
== IO Resource Allocation Table ==
[[File:Excel-001.png|24x24px]]  [[:en:res/E32R35T/ESP32-WROOM-32E模组IO资源分配表.xlsx|'''ESP32 IO resource allocation table''']]
[[File:Excel-001.png|24x24px]]  [[:en:res/E32R28T/ESP32-WROOM-32E模组IO资源分配表.xlsx|'''ESP32 IO resource allocation table''']]


== Package Library ==
== Package Library ==
[[File:Zip-001.png|24x24px]]  [[:en:res/E32R35T/3.5inch_ESP32-32E_E32R35T_AD封装库.zip|'''3.5-inch E32R35T display module AD package library''']]
[[File:Zip-001.png|24x24px]]  [[:en:res/E32R28T/2.8inch_ESP32-32_Display_AD封装库.zip|'''2.8-inch ESP32-32E display module AD package library''']]


== LCD Initialization Code ==
== LCD Initialization Code ==
[[File:Txt-002.jpg|24x24px]]  [[:en:res/E32R35T/ST7796_Init.txt|'''ST7796 initialization code''']]
[[File:Txt-002.jpg|24x24px]]  [[:en:res/E32R28T/ILI9341V_Init.txt|'''ILI9341V initialization code''']]


= Reference Materials =
= Reference Materials =


== Development environment construction ==
== Development environment construction ==
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/Arduino_IDE1_development_environment_construction_for_ESP32.pdf|'''Arduino IDE1 development environment construction for ESP32''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/PublicFile/Arduino_IDE1_development_environment_construction_for_ESP32.pdf|'''Arduino IDE1 development environment construction for ESP32''']]


[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/Arduino_IDE2_development_environment_construction_for_ESP32.pdf|'''Arduino IDE2 development environment construction for ESP32''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/PublicFile/Arduino_IDE2_development_environment_construction_for_ESP32.pdf|'''Arduino IDE2 development environment construction for ESP32''']]


== 示例代码说明 ==
== Demo Instructions ==
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/3.5inch_E32R35T_E32N35T_ESP32-32E_Demo_Instructions.pdf|'''3.5-inch E32R35T display module Arduino Demo Instructions''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R28T/2.8inch_E32R28T_E32N28T_ESP32-32E_Demo_Instructions.pdf|'''2.8-inch ESP32-32E display module Arduino Demo Instructions''']]


== 数据手册 ==
== Datasheet ==
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/ST7796S-Sitronix.pdf|'''ST7796S Datasheet''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R28T/ILI9341V_DataSheet.pdf|'''ILI9341V Datasheet''']]


[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/XPT2046.pdf|'''XPT2046 Datasheet''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/PublicFile/XPT2046.pdf|'''XPT2046 Datasheet''']]


[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/esp32_datasheet_en.pdf|'''ESP32 chip Datasheet''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/PublicFile/esp32_datasheet_en.pdf|'''ESP32 chip Datasheet''']]


[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf|'''ESP32-WROOM-32E_32UE Module Datasheet''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/PublicFile/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf|'''ESP32-WROOM-32E_32UE Module Datasheet''']]


[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/esp32_hardware_design_guidelines_en.pdf|'''ESP32 hardware design guidelines''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/PublicFile/esp32_hardware_design_guidelines_en.pdf|'''ESP32 hardware design guidelines''']]


[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/esp32_technical_reference_manual_en.pdf|'''ESP32 technical reference manual''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/PublicFile/esp32_technical_reference_manual_en.pdf|'''ESP32 technical reference manual''']]


[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/TP4054.PDF|'''Battery Charging Management TP4054 Datasheet''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/PublicFile/TP4054.PDF|'''Battery Charging Management TP4054 Datasheet''']]


[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/ME6217_LDO.pdf|'''Regulator ME6217 Datasheet''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/PublicFile/ME6217_LDO.pdf|'''Regulator ME6217 Datasheet''']]


[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/FM8002E.pdf|'''Audio amplifier FM8002E Datasheet''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/PublicFile/FM8002E.pdf|'''Audio amplifier FM8002E Datasheet''']]


[[File:Pdf-001.jpg|24x24px]]  [[:en:res/E32R35T/CH340C_en.pdf|'''USB to serial port CH340C Datasheet''']]
[[File:Pdf-001.jpg|24x24px]]  [[:en:res/PublicFile/CH340C_en.pdf|'''USB to serial port CH340C Datasheet''']]


[[File:HTML-001.jpg|24x24px]]  [[:en:Chinese_and_English_display_modulo_settings|'''Chinese and English display modulo settings''']]
[[File:HTML-001.jpg|24x24px]]  [[:en:Chinese_and_English_display_modulo_settings|'''Chinese and English display modulo settings''']]

Latest revision as of 14:29, 15 September 2024

Product Picture

  • E32R28T-TopView

  • E32R28T-BottomView

  • E32N28T-TopView

  • E32N28T--BottomView


Product Description

  • Comes with ESP32-WROOM-32E module, easy development, sufficient development resources
  • 2.8-inch color screen, 240x320 resolution ,the maximum support is 262K color (RGB666), display rich color
  • Rich interface, easy to connect a variety of peripherals (SPI, UART,etc.)
  • Supports external speakers to play audio
  • Comes with RGB three-color indicator, indicating rich status
  • Comes with resistive touch screen, easy man-machine interaction
  • Standard TYPE-C interface for easy program download and power supply
  • Equipped with micro TF card slot for easy storage expansion
  • Support external lithium battery, lightweight and portable
  • Equipped with battery charging management circuit to ensure safe battery charging and discharging
  • Provide rich example learning programs, easy to learn
  • Provide low-level driver technical support, and update WIKI information online
  • Multiple tests for module aging can meet military level standards, supporting long-term stable work

Product Parameters

ESP32 Parameters

Name Parameter
Module ESP32-WROOM-32E
CPU ESP32-D0WD-V3,Xtensa dual-core 32-bit LX6 microprocessor
Frequency 240MHz(Max)
Memory 48KB ROM+520KB SRAM+16KB RTC SRAM+4MB external QSPI Flash
WIFI 2.4GHz and 802.11b/g/n modes
Bluetooth Bluetooth V4.2BR /EDR and Bluetooth LE standards
Operating Voltage 3.0~3.6(V)
Operating Temperature –40~85(℃)

LCD Parameters

Name Parameter
Panel Size 2.8 inch
Panel Type TN TFT
Resolution 240xRGBx320(pixels)
Active Area 43.20(W)x57.60(H)
Number of Colors Max: 262K(RGB666)

Common: 65K(RGB565)

Driver IC ILI9341V
Display Interface 4-Line SPI(Connect to ESP32)
Pixel Size 0.153(H)x0.153(mm)
View Angle 12 0’CLOCK
Brightness(TYP) 260 cd/m2
Backlight Type White LED*4
Operation Temperature -10~50(℃)
Storage Temperature -20~60(℃)

Touch Screen Parameters

Name Parameter
Touch Active Area 2.8 inch
Touch Screen Type Resistive touch screen
Touch Screen Resolution 240x320(pixels)
Driver IC XPT2046
Touch Screen Visual Area 45.20(W)x59.45(H)(mm)
Communication Interface SPI
Material ITO film +ITO glass
Operation Temperature -10~60(℃)
Storage Temperature -20~70(℃)

Size Parameters

Name Parameter
LCD Outline Size 50.00±0.2(W)x69.20±0.2(H)x2.3±0.1(D)(mm)

(Excluding cables and adhesive backing)

Touch Screen Outline Size 49.60±0.2(W)x68.80±0.2(H)x1.20 (D)(mm)

(Excluding cables and adhesive backing)

Module Outline Size Have Touch Screen: 50.00(W)x86.00(H)x5.60(D)(mm)

Have no Touch Screen: 50.00(W)x86.00(H)x4.40(D)(mm)

Battery Charging Parameters

Name Parameter
Charging Voltage Range: 4.2 to 6.5

Typical value: 5

Charging Current Max: 500

Module Actual value: 290

Charging Saturation Voltage 4.24V
Charging Temperature Module maximum value:62℃
Rechargeable Battery Specifications 3.7V polymer lithium battery

Electrical Parameters

Name Parameter
Working Voltage 5.0V
Backlight Current 75mA
Total Current ESP32 reset: 40

Only the display works: 130

Display, speaker, battery charging all work: 480

Power 0.65W(Display only works)

Basic Parameters

Name Parameter
SKU Have Touch Sreen: E32R28T

Have no Touch Screen: E32N28T

Power Supply Interface TYPE-C
Weight(including package) E32R28T: 90g

E32N28T: 80g

Interface Definition

Interface Function Description

Interface Name Function Description
ESP32-WROOM-32E Module Display module main control,control board peripheral and external peripheral.
MicroSD card slot A MicroSD card is inserted to expand the storage space for storing

large data such as characters, pictures, and audio files.

RGB LED Contains red, green, blue three colors of LED lights, each light can be controlled by IO,

used to indicate the status.

Serial port 1.25mm 4P connector.It can be used for serial debugging, downloading,

and communication. An external USB to serial port module is required.

Battery Interface 1.25mm 2P connector.Used to connect 3.7V polymer lithium battery,

charge the battery through the battery charge management circuit,

can also be used for battery power supply.

Note the positive and negative terminals of the interface.

BOOT Key Used to enter download mode or key test.

Press and hold this button to power on and release it to enter the download mode.

Alternatively, press and hold this button and then press the RESET button to release the

RESET button and then release this button to enter the download mode.

When you do not need to enter the download mode, this button can be used as a common button.

Type-C Interface Used for module power supply and download programs.

This interface is connected to the one-click download circuit on the module,

which can automatically enter the download mode (without pressing the BOOT key).

RESET Key Used for ESP32 master control and LCD reset, level reset after pressing.
Expand Pin 1.25mm 2P connector. Lead out GND, 3.3V, and IO35 pins,

of which IO35 can only be used as the input pin.

Speaker Interface 1.25mm 2P connector. Used to access the speaker to play audio.
SPI peripheral interface 1.25mm 4P connector. For external connection to devices that use IIC communication.

It can be used as ordinary IO.

ESP32 Pin Assignment

Onboard Equipment ESP32 Connect Pins Pin Description of Onboard Equipment
LCD IO15 LCD screen selection control signal, low level effective
IO2 LCD command/data selection control signal

High Level:data,low Level:command

IO14 LCD SPI bus clock signal
IO13 LCD SPI bus write data signal
IO12 LCD SPI bus read data signal
EN LCD reset control signal, low level reset(share reset pin with ESP32-32E master)
IO21 LCD backlight control signal(high level backlight on, low level backlight off)
Resistive Touch Screen IO25 Resistive touch screen SPI bus clock signal
IO32 Resistive touch screen SPI bus write data signal
IO39 Resistive touch screen SPI bus read data signal
IO33 Resistive touch screen chip selection control signal,low level effective
IO36 Resistive touch screen touch interrupt signal,

generates touch when input low level to master

RGB Three-color Light IO22 Red LED light(common anode, low level on, high level off)
IO16 Green LED light(common anode, low level on, high level off)
IO17 Blue LED light(common anode, low level on, high level off)
MicroSD 卡 IO5 SD card select signal,low level effective
IO23 SD card SPI bus write data signal

(shared by MicroSD card and SPI peripheral)

IO18 SD card SPI bus clock signal

(shared by MicroSD card and SPI peripheral)

IO19 SD card SPI bus read data signal

(shared by MicroSD card and SPI peripheral)

Audio IO4 Audio enable signal,low level enable,high level disable
IO26 Audio signal DAC output signal
KEY IO0 Download mode Select button

(Press and hold the button to power on, then release to enter download mode)

EN ESP32-23E reset button, low level reset(shared with LCD reset)
Serial Port RXD0(IO3) ESP32-32E serial port receiving signal

(if the serial port is not used, it can be used as ordinary IO)

TXD0(IO1) ESP32-32E serial port sends signals

(if the serial port is not used, it can be used as ordinary IO)

Battery IO34 Battery voltage ADC value Get Signal (input)
SPI Peripheral IO27 SPI peripheral chip selection signal, low level effective

(if the SPI device is not used, it can be used for ordinary IO)

IO18 SPI bus clock pin for SPI peripherals

(SPI peripherals are shared with MicroSD cards,

if SPI devices or SD cards are not used, ordinary IO can be used)

IO19 The SPI bus read data pin of the SPI peripheral

(SPI peripherals are shared with MicroSD cards,

if SPI devices or SD cards are not used, ordinary IO can be used)

IO23 The SPI bus of the SPI peripheral writes data pins

(SPI peripherals are shared with MicroSD cards,

if SPI devices or SD cards are not used, ordinary IO can be used)

NC IO35 It can only be used as input IO

Quick Start Instructions

2.8-inch ESP32-32E display module Quick_Start Package

2.8-inch ESP32-32E display module Qucik Start

Data Pack Download

2.8-inch ESP32-32E display module data package(Extract code: 4s6k)

Product Documentation

Specification

Product Specification

2.8-inch ESP32-32E display module Specification

LCD Specifications

2.8-inch QD2803 screen specification

User Manual

2.8-inch ESP32-32E display module User Manual

Dimension Drawing

E32R28T display module dimensions

E32N28T display module dimensions

3D Drawing

E32R28T display module 3D image

E32N28T display module 3D image

Schematic

2.8-inch ESP32-32E display module Schematic diagram

IO Resource Allocation Table

ESP32 IO resource allocation table

Package Library

2.8-inch ESP32-32E display module AD package library

LCD Initialization Code

ILI9341V initialization code

Reference Materials

Development environment construction

Arduino IDE1 development environment construction for ESP32

Arduino IDE2 development environment construction for ESP32

Demo Instructions

2.8-inch ESP32-32E display module Arduino Demo Instructions

Datasheet

ILI9341V Datasheet

XPT2046 Datasheet

ESP32 chip Datasheet

ESP32-WROOM-32E_32UE Module Datasheet

ESP32 hardware design guidelines

ESP32 technical reference manual

Battery Charging Management TP4054 Datasheet

Regulator ME6217 Datasheet

Audio amplifier FM8002E Datasheet

USB to serial port CH340C Datasheet

Chinese and English display modulo settings

Tool Software

Flash_Download

JPGCompact

TCP_UDP test tool

USB-SERIAL_CH340

Serial debugging assistant

Network debugging assistant

esptouch

PCtoLCD2002

Image2Lcd

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This page was last edited on 15 September 2024, at 14:29.